阅读说明：本技术 一种黑启动试验节点时间记录装置及方法 (Black start test node time recording device and method ) 是由 寇水潮 孙嘉悦 田磊陈 高峰 杨沛豪 仵欣 潘海波 王文强 薛磊 贺婷 赵俊博 于 2020-11-19 设计创作，主要内容包括：本发明一种黑启动试验节点时间记录装置,包括电源模块、时钟模块、主控模块、显示模块和触发记录模块；该装置由时钟电路模块为智能处理器模块提供时钟信号,每个关键节点时间设置一个按键,实际使用时由指挥人员根据试验步骤按下对应名称的按键,当智能处理器模块收到对应输入通道按键按下时,获取当前时间信号,并通过显示模块显示出各节点的时间信号,方便黑启动试验人员及时了解黑启动进度,并判断整个启动时间是否满足规定时间要求,同时提升了时间记录的精度,为电网提供了机组实际的黑启动参数；实现指挥人员边指挥边记录,实际使用时只需要按下对应节点的按键,装置自动记录对应的时间,确保试验时机组在电网规定时间内快速启动送出。(The invention relates to a black start test node time recording device which comprises a power supply module, a clock module, a main control module, a display module and a trigger recording module, wherein the clock module is used for receiving a clock signal; the device provides a clock signal for an intelligent processor module through a clock circuit module, each key node is provided with a key at a time, when the device is actually used, a commander presses the key with a corresponding name according to a test step, when the intelligent processor module receives the press of the key of a corresponding input channel, the current time signal is obtained, and the time signal of each node is displayed through a display module, so that a black start tester can know the black start progress in time conveniently, judge whether the whole start time meets the specified time requirement or not, improve the precision of time recording, and provide the actual black start parameters of a unit for a power grid; the device realizes that commander commands and records simultaneously, and the device automatically records corresponding time only by pressing the key of the corresponding node during actual use, and ensures that the unit is quickly started and sent out within the specified time of the power grid during testing.)

1. A black start test node time recording device is characterized by comprising a clock module (2), a main control module (3), a display module (4) and a trigger recording module (5);

the signal output port of the clock module (2) is connected with the third digital input port of the main control module (3), and the clock module (2) is used for providing a time signal for the main control module (3);

the signal output end of the trigger recording module (5) is connected with the first digital quantity input port and the second digital quantity input port of the main control module (3);

the communication port of the main control module (3) is connected with the communication port of the display module (4); the main control module (3) is used for receiving the signal transmitted by the trigger recording module (5), recording a corresponding time signal, and displaying the time of each node of the black start test through the display module (4);

the main control module (3) comprises a second crystal oscillator circuit, a reset circuit and a processor chip, wherein the second crystal oscillator circuit is connected with an oscillation signal input port of the processor chip and used for providing working step sequence signals for the processor chip, the reset circuit is connected with a reset port of the processor chip and used for executing a program of the processor chip from the beginning, a first port and a second port of the processor chip are digital quantity input ports, each channel is correspondingly connected with the trigger recording module (5), and a serial communication port of the processor chip is connected with a serial communication port of the display module (4).

2. The black start test node time recording device according to claim 1, further comprising a power supply module (1), wherein a voltage output end and a ground end of the power supply module are respectively connected to power ports of the clock module (2), the main control module (3), the display module (4) and the trigger recording module (5), and are used for providing operating power for the clock module (2), the main control module (3), the display module (4) and the trigger recording module (5).

3. A black start test node time recorder according to claim 2, wherein the power module (1) employs a rechargeable lithium battery with a 5V voltage output.

4. The black-start test node time recording device according to claim 1, wherein the clock module (2) comprises a backup battery, a first crystal oscillator circuit and a clock chip, an output power end of the backup battery is connected to a backup power port of the clock chip to serve as a backup power source of the power module (1), an output end of the first crystal oscillator circuit is connected to an oscillation signal input port of the clock chip to provide an oscillation signal for the clock chip, and the main control module (3) obtains the time signal of the clock chip through a digital quantity port.

5. The black-start test node time recording device according to claim 4, wherein the backup battery outputs 3.3V voltage, the first crystal oscillator circuit parameter is 32.768kHz, and the clock chip adopts DS1302 chip.

6. The black-start test node time recorder of claim 1, wherein the second oscillator circuit parameter is 12MHz, and the processor chip is an STC89C54 single chip microcomputer.

7. The black-start test node time recording device according to claim 1, wherein the display module (4) comprises a display interface, is connected with an external color screen, and is used for interacting and sharing the collected information with the main control module (3) in a serial communication protocol manner.

8. The black start test node time recording device according to claim 1, wherein the trigger recording module (5) comprises twelve key circuit modules with the same structure, the serial numbers are respectively from the first to the twelfth, a common point of a resistor and a key in each numbered key circuit is connected with a digital quantity port of the main control module (3), each key circuit module represents the time node name of different stages of black start, and when any key is pressed, the main control module (3) is triggered to record time and display the time through the display module (4).

9. A black start test node time recording method, based on the device of any one of claims 1 to 8, comprising the steps of:

1) when the isolation operation of the electrical equipment in the black start range is started, a black start commander presses a button in a first key circuit module, the main control module (3) automatically records the start time of the black start isolation operation, displays the start time in a first row of tables of a display module (4), and enters the step 2);

2) when the isolation operation of the electrical equipment within the black start range is finished, a black start commander presses a button in the second key circuit module, the master control module (3) automatically records the end time of the black start isolation operation, displays the end time in a second row of tables of the display module (4), and enters the step 3);

3) after a black start instruction issued by power grid scheduling is received, a black start commander presses a button in a third key circuit module, the master control module (3) automatically records the order issuing time of the black start scheduling, displays the order issuing time in a third row of tables of the display module (4), and enters step 4);

4) when the black start operation is started to be executed on site, a black start commander presses a button in a fourth key circuit module, the main control module (3) automatically records the black start operation starting time, displays the black start operation starting time in a fourth row table of the display module (4), and enters step 5);

5) simulating the power failure of the unit to be started, pressing a button in a fifth key circuit module by a black start commander, automatically recording the simulated power failure time by the main control module (3), displaying the simulated power failure time in a fifth table of the display module (4), and entering the step 6);

6) starting a black start diesel generator, pressing a button in a sixth key circuit module by a black start commander, automatically recording the starting time of the diesel generator by the main control module (3), displaying the starting time in a sixth row of tables of the display module (4), and entering the step 7);

7) when the service power of the unit to be started is recovered from power supply, a black start commander presses a button in a seventh key circuit module, the master control module (3) automatically records the service power recovery time, displays the service power recovery time in a seventh row of table of a display module (4), and enters step 8);

8) when the black start unit starts to start, the black start commander presses a button in the eighth key circuit module, the master control module (3) automatically records the start time, displays the start time in the eighth row of the table of the display module (4), and enters step 9);

9) after the black start unit reaches the rated rotation speed, the black start commander presses a button in the ninth key circuit module, the main control module (3) automatically records the time when the black start unit reaches the rated rotation speed, the time is displayed in a ninth row table of the display module (4), and the step 10 is carried out;

10) after the black starter is built and pressed to the rated voltage, a black start commander presses a button in a tenth key circuit module, the main control module (3) automatically records the time of the black starter when the black starter is built and pressed to the rated voltage, the time is displayed in a tenth row of tables of a display module (4), and the step 11 is entered;

11) when the black-start engine group charges the sending-out line, the black-start commander presses a button in the eleventh key circuit module, the main control module (3) automatically records the charging time of the black-start engine group on the sending-out line, displays the charging time in the eleventh row of tables of the display module (4), and enters step 12);

12) and when the black start test is finished, the black start commander presses a button in the twelfth key circuit module, the main control module (3) automatically records the end time of the black start test and displays the end time in the twelfth row of the table of the display module (4).

Technical Field

The invention belongs to the technical field of black start, and particularly relates to a black start test node time recording device and method.

Background

The fast development of new energy and the increasing occupation ratio in the power grid indicate that when the occupation ratio of the new energy in the power grid reaches more than 30%, the traditional power grid is impacted, the power grid is not easy to maintain dynamic balance, so the power grid power failure risk is increased, the requirement of the power grid on the black start of a security guard is further increased, particularly, in recent years, relevant national energy supervision organizations specially issue a plurality of policies for the black start, the black start is brought into the conventional auxiliary service of the power grid, the unit with the capability after the test is supplemented, the black start capability of the unit needs to be re-identified at regular intervals, if the power grid really loses power, the unit with the capability cannot be normally started and examined greatly, equipment capability examination of each power station is required to be regularly carried out, and smooth start and delivery are ensured. When the black start is carried out, a large amount of time data needs to be recorded, particularly, key time nodes of a unit for recovering and sending a power supply can be examined, an emergency plan is compiled for the power grid to know the capacity of the unit to be started, a power station is particularly required to record the actual time of each key step in the black start test, the current common key time record of the black start test is usually recorded on a paper file manually by an operator, when the work is actually carried out, a special person needs to be arranged in a centralized control room for operation, data are closely recorded in cooperation with a black start master command, and a device capable of recording the key time is lacked.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a black start test node time recording device and method, which can replace a manual recording mode, realize that a commander can record while commanding, only need to press a key of a corresponding node during actual use, automatically record corresponding time, save recording time and ensure that a unit is quickly started and sent out within the specified time of a power grid during testing.

The invention is realized by the following technical scheme:

a black start test node time recording device comprises a clock module, a main control module, a display module and a trigger recording module;

the clock module signal output port is connected with the third digital quantity input port of the main control module, and the clock module is used for providing a time signal for the main control module;

the signal output end of the trigger recording module is connected with the first digital quantity input port and the second digital quantity input port of the main control module;

the main control module communication port is connected with the display module communication port; the main control module is used for receiving the signal transmitted by the trigger recording module, recording a corresponding time signal and displaying the time of each node of the black start test through the display module;

the main control module comprises a second crystal oscillator circuit, a reset circuit and a processor chip, wherein the second crystal oscillator circuit is connected with an oscillation signal input port of the processor chip and used for providing a working step sequence signal for the processor chip, the reset circuit is connected with a reset port of the processor chip and used for executing a program of the processor chip from the beginning, the first port and the second port of the processor chip are digital quantity input ports, each channel is correspondingly connected with the trigger recording module, and a serial communication port of the processor chip is connected with a serial communication port of the display module.

Preferably, the device further comprises a power supply module, wherein a voltage output end and a ground end of the power supply module are respectively connected with a power supply port of the clock module, the master control module, the display module and the trigger recording module, and are used for providing a working power supply for device operation for the clock module, the master control module, the display module and the trigger recording module.

Further, the power module employs a rechargeable lithium battery having a 5V voltage output.

Preferably, the clock module includes stand-by battery, a crystal oscillator circuit and clock chip, and stand-by battery output power end links to each other with clock chip standby power port, as power module's stand-by power supply, and a crystal oscillator circuit output links to each other with clock chip's oscillating signal input port for provide oscillating signal for clock chip, master module obtains clock chip's time signal through the digital quantity port.

Preferably, the backup battery outputs 3.3V voltage, the parameter of the first crystal oscillator circuit is 32.768kHz, and the clock chip adopts a DS1302 chip.

Preferably, the parameter of the second crystal oscillator circuit is 12MHz, and the STC89C54 singlechip is selected as the processor chip.

Preferably, the display module comprises a display interface, is connected with an external color screen, and performs information acquisition interaction and sharing with the main control module in a serial communication protocol mode.

Preferably, the trigger recording module comprises twelve key circuit modules with the same structure, the serial numbers are respectively from the first to the twelfth, a common point of a resistor and a key in each numbered key circuit is connected with a digital quantity port of the main control module, each key circuit module represents the names of time nodes in different stages of black start, and when any key is pressed down, the main control module is triggered to record the time and the time is displayed through the display module.

A black start test node time recording method is based on the device, and comprises the following steps:

1) when the isolation operation of the electrical equipment in the black start range is started, a black start commander presses a button in the first key circuit module, the main control module automatically records the start time of the black start isolation operation, displays the start time in a first row of tables of the display module, and enters step 2);

2) after the isolation operation of the electrical equipment within the black start range is finished, a black start commander presses a button in the second key circuit module, the master control module automatically records the end time of the black start isolation operation, displays the end time in a second row of tables of the display module, and enters step 3);

3) after a black start instruction issued by power grid dispatching is received, a black start commander presses a button in a third key circuit module, the master control module automatically records the black start dispatching command issuing time, displays the black start dispatching command in a third row of tables of a display module, and enters step 4);

4) when the black start operation is started to be executed on site, the black start commander presses a button in the fourth key circuit module, the main control module automatically records the black start operation time, displays the black start operation time in a fourth table of the display module, and enters the step 5);

5) simulating the power failure of the unit to be started, pressing a button in a fifth key circuit module by a black start commander, automatically recording the simulated power failure time by the main control module, displaying the simulated power failure time in a fifth table of a display module, and entering the step 6);

6) starting a black start diesel generator, pressing a button in a sixth key circuit module by a black start commander, automatically recording the starting time of the diesel generator by the main control module, displaying the starting time in a sixth row of tables of the display module, and entering the step 7);

7) when the service power of the unit to be started is recovered from power supply, a black start commander presses a button in the seventh key circuit module, the master control module automatically records the service power recovery time, displays the service power recovery time in a seventh row table of the display module, and enters step 8);

8) when the black start unit starts to start, the black start commander presses a button in the eighth key circuit module, the master control module automatically records the start time, displays the start time in the eighth row of tables of the display module, and enters step 9);

9) after the black start unit reaches the rated rotation speed, the black start commander presses a button in the ninth key circuit module, the main control module automatically records the time when the black start unit reaches the rated rotation speed, the time is displayed in a ninth row table of the display module, and the step 10 is carried out;

10) after the black starter is built and pressed to the rated voltage, the black start commander presses a button in the tenth keying circuit module, the main control module automatically records the time when the black starter is built and pressed to the rated voltage, the time is displayed in a tenth row table of the display module, and the step 11 is entered;

11) when the black start engine group charges the sending line, the black start commander presses a button in the eleventh key circuit module, the main control module automatically records the charging time of the black start engine group on the sending line, displays the charging time in the eleventh row of tables of the display module, and enters step 12);

12) and after the black start test is finished, the black start commander presses a button in the twelfth key circuit module, and the main control module automatically records the end time of the black start test and displays the end time in the twelfth row of the table of the display module.

Compared with the prior art, the invention has the following beneficial technical effects:

according to the invention, the clock circuit module provides a clock signal for the intelligent processor module, each key node is provided with a key, when the intelligent processor module is actually used, a commander presses the key with a corresponding name according to the test steps, when the intelligent processor module receives the press of the key of the corresponding input channel, the current time signal is obtained, and the time signal of each node is displayed through the display module, so that a black start tester can know the black start progress in time, and judge whether the whole start time meets the specified time requirement, meanwhile, the precision of time recording is improved, the time of the tester is saved by replacing a manual mode, and the actual black start parameters of the unit are provided for a power grid.

Furthermore, the clock circuit module adopts the DS1302 chip which is most widely used at present, the chip becomes the first choice in all timing fields by virtue of stable quality, high-precision time parameters can be output, and a standby power supply circuit is also arranged, so that the clock circuit module can still normally work even if a main power supply is powered off.

Furthermore, the power module of the invention adopts a lithium battery which outputs 5V power by a single circuit, is convenient for field use and does not need an external alternating current power supply.

Furthermore, the intelligent processor module adopts an STC89C52 single chip microcomputer with low cost performance and low programming difficulty, meets the access requirement of multi-path key input signals, runs stably, and can work normally only by a small amount of peripheral auxiliary circuits.

Furthermore, the display module adopts a mature human-computer interface screen to display the information transmitted by the intelligent processor module through the serial port in a color mode, so that the situation that the traditional display needs to occupy excessive pins is avoided, and the circuit is simplified.

Furthermore, the method can solve the practical problems in the black start process, fill the blank in the field, facilitate popularization and use in the black start field, improve the measurement precision of the data of the to-be-started unit, and enable future black start to develop towards the intelligent direction.

Drawings

FIG. 1 is a schematic block diagram of the apparatus of the present invention.

Fig. 2 is a circuit diagram of a power module according to the present invention.

FIG. 3 is a circuit diagram of a clock module according to the present invention.

FIG. 4 is a circuit diagram of a main control module according to the present invention.

FIG. 5 is a circuit diagram of a display module according to the present invention.

FIG. 6 is a circuit diagram of a trigger recording module according to the present invention.

In the figure: a power supply module 1; a clock module 2; a main control module 3; a display module 4; the recording module 5 is triggered.

Detailed Description

The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.

The invention can solve the problem of manual recording of the current black start key node, provides a device which is easy to use and high in measurement precision, realizes the command and recording of black start commanders at the same time, reduces communication in the starting process and improves the black start test efficiency.

The invention discloses a black start test node time recording device, which comprises a clock module 2, a main control module 3, a display module 4 and a trigger recording module 5, wherein a signal output port of the clock module 2 is connected with a third digital quantity input port of the main control module 3, the clock module 2 is used for providing a time signal for the main control module 3, a communication port of the main control module 3 is connected with a communication port of the display module 4, a signal output port of the trigger recording module 5 is connected with a first digital quantity input port and a second digital quantity input port of the main control module 3, the main control module 3 is used for receiving a signal transmitted by the trigger recording module 5, recording a corresponding time signal and displaying the time of each node of a black start test through the display module 4, as shown in figure 1.

In this embodiment, the device further includes a power module 1, where a voltage output end and a ground end of the power module are respectively connected to power ports of the clock module 2, the main control module 3, the display module 4, and the trigger recording module 5, and are configured to provide a working power source for device operation for the clock module 2, the main control module 3, the display module 4, and the trigger recording module 5.

In this embodiment, the power module 1 adopts a rechargeable lithium battery with 5V voltage output; as shown in fig. 2, the power module 1 is connected to the 5V power port of the rechargeable lithium battery through the 1 st pin of the power interface D1, and the 2 nd pin of the power interface D1 is connected to the power ground port of the rechargeable lithium battery.

In this embodiment, the clock module 2 includes a backup battery, a first crystal oscillator circuit, and a clock chip, an output power terminal of the backup battery is connected to a backup power port of the clock chip to serve as a backup power of the power module 1, an output terminal of the first crystal oscillator circuit is connected to an oscillation signal input port of the clock chip to provide an oscillation signal for the clock chip, and the main control module 3 obtains a time signal of the clock chip through a digital port; as shown in fig. 3, the clock module 2 includes a standby battery B1, a first crystal oscillator J1, and a clock chip Z1, where the first crystal oscillator J1 is connected in parallel to a 2 nd pin and a 3 rd pin of the clock chip Z1, two ends of the standby battery B1 are connected in parallel to a 4 th pin and an 8 th pin of the clock chip Z1, a 4 th pin of the clock chip Z1 is connected to a 2 nd pin of the power interface D1, a 1 st pin of the clock chip Z1 is connected to a 1 st pin of the power interface D1, and a 5 th pin, a 6 th pin, and a 7 th pin of the clock chip Z1 are output ports of the signal clock module 2.

In this embodiment, the backup battery outputs 3.3V, the first crystal oscillator circuit parameter is 32.768kHz, and the clock chip adopts a DS1302 chip.

In this embodiment, the main control module 3 includes a second crystal oscillator circuit, a reset circuit and a processor chip, the second crystal oscillator circuit is connected to an oscillation signal input port of the processor chip and is configured to provide a work step sequence signal for the processor chip, the reset circuit is connected to a reset port of the processor chip and is configured to execute a program of the processor chip from the beginning, the first and second ports of the processor chip are digital input ports, each channel is correspondingly connected to the trigger recording module 5, and a serial communication port of the processor chip is connected to a serial communication port of the display module 4; as shown in fig. 4, the second crystal oscillator circuit includes a capacitor C3, a capacitor C4, and a second crystal oscillator J2, the reset circuit includes a key S14, a capacitor C2, and a resistor R13, the processor chip is a processor chip W1, one end of each of the capacitor C3 and the capacitor C4 is connected to the 2 nd pin of the power interface D1, the other end of each of the capacitor C3 and the capacitor C4 is connected to the 14 th pin and the 15 th pin of the processor chip W1, and the second crystal oscillator J2 is connected in parallel to the 14 th pin and the 15 th pin of the processor chip W1; one end of a capacitor C2 is connected with a 1 st pin of a power interface D1, the other end of the capacitor C2 is connected with a 2 nd pin of the power interface D1 through a resistor R13, a key S14 is connected in parallel with two ends of the capacitor C2, a 4 th pin of a processor chip W1 is connected with a common point between the capacitor C2 and the resistor R13, a 29 th pin and a 38 th pin of a processor chip W1 are connected with the 1 st pin of the power interface D1, and a 16 th pin of the processor chip W1 is connected with the 2 nd pin of the power interface D1; the 18 th pin, the 19 th pin, the 20 th pin, the 21 st pin, the 22 nd pin, the 23 rd pin, the 24 th pin, the 25 th pin, the 8 th pin, the 9 th pin, the 10 th pin and the 11 th pin of the processor chip W1 are connected with a common point between the resistors and the keys in twelve key circuit modules in the trigger recording module 5; the 5 th pin and the 7 th pin of the processor chip W1 are communication ports, and the 17 th pin, the 28 th pin and the 39 th pin of the processor chip W1 are respectively connected with the 5 th pin, the 6 th pin and the 7 th pin of the clock chip Z1.

In this embodiment, the second crystal oscillator circuit parameter is 12MHz, and the processor chip selects an STC89C54 single chip microcomputer.

In this embodiment, the display module 4 includes a display interface, is connected to an external color screen, and interacts and shares the collected information with the main control module 3 in a serial communication protocol manner; as shown in fig. 5, the display module 4 includes a display interface X1, a 1 st pin of the display interface X1 is connected to a 1 st pin of the power interface D1, a 4 th pin of the display interface X1 is connected to a 2 nd pin of the power interface D1, a 2 nd pin of the display interface X1 is connected to a 5 th pin of the processor chip W1, a 3 rd pin of the display interface X1 is connected to a 7 th pin of the processor chip W1, and the 2 nd pin and the 3 rd pin of the display interface X1 are serial communication ports.

In this embodiment, the trigger recording module 5 includes twelve paths of key circuit modules with the same structure, the serial numbers are respectively from the first to the twelfth, a common point of a resistor and a key in each numbered key circuit is connected with a digital quantity port of the main control module 3, each key circuit module represents the names of time nodes at different stages of black start, when any key is pressed down, the main control module 3 is triggered to record time, and the time is displayed through the display module 4; as shown in fig. 6, the first key circuit includes a resistor R1 and a key S1, the first key circuit is used for triggering and recording the start time of the black start isolation operation, the second key circuit includes a resistor R2 and a key S2, the second key circuit is used for recording the end time of the black start isolation operation, the third key circuit includes a resistor R3 and a key S3, the third key circuit is used for recording the command time of the black start schedule, the fourth key circuit includes a resistor R4 and a key S4, the fourth key circuit is used for recording the start time of the black start operation, the fifth key circuit includes a resistor R5 and a key S5, the fifth key circuit is used for recording the simulated power failure time, the sixth key circuit includes a resistor R6 and a key S6, the sixth key circuit is used for recording the start time of the diesel generator, the seventh key circuit includes a resistor R7 and a key S7, the seventh key circuit is used for recording the recovery time of the service power utilization, the eighth key circuit comprises a resistor R8 and a key S8, the eighth key circuit is used for recording start starting time, the ninth key circuit comprises a resistor R9 and a key S9, the ninth key circuit is used for recording time when the black-start unit reaches rated rotating speed, the tenth key circuit comprises a resistor R10 and a key S10, the tenth key circuit is used for recording time when the black-start unit is pressed to rated voltage, the eleventh key circuit comprises a resistor R11 and a key S11, the eleventh key circuit is used for recording charging time when the black-start unit sends out a line, the twelfth key circuit comprises a resistor R12 and a key S12, and the twelfth key circuit is used for recording end time of a black-start test; a series body circuit consisting of a resistor R1 and a key S1, a series body circuit consisting of a resistor R2 and a key S2, a series body circuit consisting of a resistor R3 and a key S3, a series body circuit consisting of a resistor R4 and a key S4, a series body circuit consisting of a resistor R5 and a key S5, a series body circuit consisting of a resistor R6 and a key S6, a series body circuit consisting of a resistor R7 and a key S7, a series body circuit consisting of a resistor R8 and a key S8, a series body circuit consisting of a resistor R9 and a key S9, a series body circuit consisting of a resistor R10 and a key S10, a series body circuit consisting of a resistor R11 and a key S11, and a series body circuit consisting of a resistor R2 and a key S12, wherein one end of the series body circuit is connected with a 1 st pin of a power interface D1, and a 2 nd pin of a power interface D1 at the other end is connected with a second pin; a common point between the resistor R1 and the key S1, a common point between the resistor R2 and the key S2, a common point between the resistor R3 and the key S3, a common point between the resistor R4 and the key S4, a common point between the resistor R5 and the key S5, a common point between the resistor R6 and the key S6, a common point between the resistor R7 and the key S7, a common point between the resistor R8 and the key S8, a common point between the resistor R9 and the key S9, a common point between the resistor R10 and the key S10, a common point between the resistor R11 and the key S11, and a common point between the resistor R12 and the key S12 are respectively connected to the 18 th pin, the 19 th pin, the 20 th pin, the 21 th pin, the 22 th pin, the 23 th pin, the 24 th pin, the 25 th pin, the 8 th pin, the 9 th pin, the 10 th pin, and the 11 th pin.

A black start test node time recording method comprises the following steps:

1) when the isolation operation of the electrical equipment in the black start range is started, a black start commander presses a button in the first key circuit module, the main control module 3 automatically records the start time of the black start isolation operation, displays the start time in a first row of tables of the display module 4, and enters the step 2);

2) when the isolation operation of the electrical equipment within the black start range is finished, a black start commander presses a button in the second key circuit module, the main control module 3 automatically records the end time of the black start isolation operation, displays the end time in a second row of tables of the display module 4, and enters the step 3);

3) after a black start instruction issued by power grid scheduling is received, a black start commander presses a button in a third key circuit module, the main control module 3 automatically records the instruction issuing time of the black start scheduling, displays the instruction in a third row table of the display module 4, and enters step 4);

4) when the black start operation is started to be executed on site, the black start commander presses a button in the fourth key circuit module, the main control module 3 automatically records the black start operation starting time, displays the black start operation starting time in the fourth row table of the display module 4, and enters the step 5);

5) simulating the power failure of the unit to be started, pressing a button in a fifth key circuit module by a black start commander, automatically recording the simulated power failure time by the main control module 3, displaying the simulated power failure time in a fifth table of the display module 4, and entering the step 6);

6) starting a black start diesel generator, pressing a button in a sixth key circuit module by a black start commander, automatically recording the starting time of the diesel generator by the main control module 3, displaying the starting time in a sixth row of tables of the display module 4, and entering the step 7);

7) when the service power of the unit to be started is recovered from power supply, a black start commander presses a button in a seventh key circuit module, the master control module 3 automatically records the service power recovery time, displays the service power recovery time in a seventh row of tables of the display module 4, and enters step 8);

8) when the black start unit starts to start, the black start commander presses a button in the eighth key circuit module, the main control module 3 automatically records the start time, displays the start time in the eighth row table of the display module 4, and enters step 9);

9) after the black start unit reaches the rated rotation speed, the black start commander presses a button in the ninth key circuit module, the main control module 3 automatically records the time when the black start unit reaches the rated rotation speed, and displays the time in the ninth row of tables of the display module 4, and the step 10 is entered;

10) after the black starter is built and pressed to the rated voltage, the black start commander presses a button in the tenth keying circuit module, the main control module 3 automatically records the time when the black starter is built and pressed to the rated voltage, the time is displayed in a tenth row table of the display module 4, and the step 11 is entered;

11) when the black-start engine group charges the sending-out line, the black-start commander presses a button in the eleventh key circuit module, the main control module 3 automatically records the charging time of the black-start engine group on the sending-out line, displays the charging time in the eleventh row of the table of the display module 4, and enters step 12);

12) and after the black start test is finished, the black start commander presses a button in the twelfth key circuit module, the main control module 3 automatically records the end time of the black start test and displays the end time in the twelfth row of the table of the display module 4.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.