阅读说明：本技术 一种柱上开关模拟装置 (Pole-mounted switch simulation device ) 是由 王成修 冯益强 赵勇 李宁 徐磊 于 2020-05-09 设计创作，主要内容包括：本发明公开了一种柱上开关模拟装置。其包括单片机控制系统,所述单片机控制系统与弹簧操作机构、永磁操作机构、电磁操作机构和开关辅助节点连接,所述单片机控制系统上设置有参数设置接口、开关状态指示接口、开关动作过程接口、控制系统接口,开关辅助节点与配电终端测试航插接口连接,单片机控制系统分别与电磁式互感器、EVT传感器、ECT传感器连接,电磁式互感器、EVT传感器、ECT传感器、弹簧操作机构、永磁操作机构、电磁操作机构均与配电终端测试航插接口连接。本专利可通过参数配置实现对各种类型柱上开关的全功能模拟,提高了测试仿真的通用性、灵活性、方便性,具有很高的实用价值。(The invention discloses a pole-mounted switch simulation device. The single chip microcomputer control system is connected with the spring operating mechanism, the permanent magnet operating mechanism, the electromagnetic operating mechanism and the switch auxiliary node, a parameter setting interface, a switch state indicating interface, a switch action process interface and a control system interface are arranged on the single chip microcomputer control system, the switch auxiliary node is connected with the power distribution terminal test aviation plug interface, the single chip microcomputer control system is respectively connected with the electromagnetic mutual inductor, the EVT sensor and the ECT sensor, and the electromagnetic mutual inductor, the EVT sensor, the ECT sensor, the spring operating mechanism, the permanent magnet operating mechanism and the electromagnetic operating mechanism are all connected with the power distribution terminal test aviation plug interface. This patent accessible parameter configuration realizes the full function simulation to various types of column switch, has improved the commonality, flexibility, the convenience of test simulation, has very high practical value.)

1. A pole-mounted switch simulation device is characterized in that: the system comprises a single-chip microcomputer control system (1), wherein the single-chip microcomputer control system (1) is connected with a spring operating mechanism (2), a permanent magnet operating mechanism (3), an electromagnetic operating mechanism (4) and a switch auxiliary node (5), a parameter setting interface (6), a switch state indicating interface (7), a switch action process interface (8) and a control system interface (9) are arranged on the single-chip microcomputer control system (1), the switch auxiliary node (5) is connected with a power distribution terminal test aerial plug interface (10), the single-chip microcomputer control system (1) is respectively connected with a mutual inductor electromagnetic system (11), an EVT sensor (12) and an ECT sensor (13), the electromagnetic mutual inductor (11), the EVT sensor (12) and the ECT sensor (13) are all connected with the power distribution terminal test aerial plug interface (10), and the spring operating mechanism (2), the permanent magnet operating mechanism (3) and the switch, The electromagnetic operating mechanisms (4) are connected with the power distribution terminal test aerial plug interface (10);

the spring operating mechanism (2) realizes the simulation of load carrying capacity during the split switching-on and spring energy storage through the configuration of the impedance of the switching-on and switching-off circuit and the spring energy storage circuit, realizes the simulation of the action time of the switch and the three-phase asynchronous time of the switch under the control of the single chip microcomputer control system (1), and supports the selection of the voltage grade of the switching-on and switching-off circuit according to the parameter configuration and configures different circuit impedances according to the voltage grade; the permanent magnet operating mechanism (3) realizes the simulation of bistable state and monostable state of the shunting and closing by parameter configuration, realizes the simulation of load carrying capacity of a shunting and closing loop by the configuration of loop impedance, and realizes the simulation of switch action time and switch three-phase different-phase time under the control of the singlechip control system (1);

the electromagnetic operating mechanism (4) realizes the simulation of the load carrying capacity of a shunt and close circuit through the configuration of loop impedance, and realizes the simulation of the action time of a switch and the three-phase asynchronous time of the switch under the control of the single chip microcomputer control system (1);

under the control of the singlechip control system (1), the simulation of the switch auxiliary node (5) of the column switch is realized according to the current state of the simulated column switch, so that the state quantity of a power distribution terminal is collected, and the simulation of the position division, the closing and the non-energy storage state of the switch is realized;

under the control of the singlechip control system (1), the simulation of an output signal of an electromagnetic mutual inductor (11) arranged in the column switch is realized through an analog-to-digital conversion and power amplification circuit, and the simulation is used for an analog quantity acquisition interface of an electromagnetic power distribution terminal, wherein voltage and current rated values are automatically adjusted according to parameter selection;

under the control of the singlechip control system (1), simulation of an output signal of an EVT sensor (12) and an output signal of an ECT sensor (13) which are arranged in a column switch is realized through analog-to-digital conversion, an output drive circuit and an operational amplifier circuit, and the simulation is used for an analog quantity acquisition interface of an electronic power distribution terminal;

the single chip microcomputer control system (1) configures and selects the corresponding operating mechanism type of the device and the power distribution terminal interface according to the parameters;

the single chip microcomputer control system (1) configures and selects a corresponding analog output type of the device and a power distribution terminal interface according to the parameters;

the standard definition of the pole top switch provides a power distribution terminal test aerial socket interface (10) with a power distribution terminal;

the parameter setting interface (6) adopts a touch screen liquid crystal interface, realizes the selection of switch types and parameters through local setting, and realizes the simulation of a specific type and parameter column switch;

the switch state indicating interface (7) realizes direct indication of the switch on-off state, the energy storage state and the electrified state of two sides of the switch under the control of the single chip microcomputer control system (1) according to the current running state of the device according to the indication requirement of the column switch panel;

under the control of the singlechip control system (1), the switching-on and switching-off, energy storage actions, action sound effects and action progress pointer processes of the switch are simulated according to the current running state of the device;

the single chip microcomputer control system (1) is in communication connection with the upper computer through a control system interface (9), the control system interface (9) is in communication connection with the upper computer through an Ethernet interface, and when the power distribution terminal is in a functional performance test, the upper computer software controls a simulation device of a single unit to simulate and output normal and fault states to test and verify a tested product; when the feeder line is simulated, the upper computer software can control a plurality of devices to work coordinately, so that the simulation of various running states of the feeder line is realized, and the feeder automation function of the power distribution terminal is verified.

Technical Field

The invention relates to a pole-mounted switch simulation device, and belongs to the field of distribution network automation.

Background

In order to provide the power supply reliability and the power supply quality for users, in recent years, China effectively increases the capital investment of the power distribution network by implementing a power distribution network construction and transformation action plan, and the automatic coverage rate of the power distribution network is improved year by year. As a main device for the transformation of overhead lines, column switches and feeder terminals as control devices thereof are widely used. Since the feeder terminal is a control device for fault location, isolation and power restoration in a non-fault area, and the functional performance of the feeder terminal and the quality of a feeder automation control algorithm are key factors for improving the distribution network automation level, the corresponding test device and a simulation test environment are required to meet the verification of the feeder terminal functional performance and the feeder automation control algorithm.

Currently, verification aiming at the functional performance of a feeder terminal is generally completed by adopting a plurality of devices according to detection items, for example: and the relay protection tester is adopted to verify the analog quantity acquisition part, and the analog circuit breaker is adopted to control, acquire and verify the on-off state and the like. However, the column switch type includes elastic operation, permanent magnet and electromagnetism, the elastic operation power supply is divided into 48V and 24V, the permanent magnet is divided into monostable state and bistable state, the analog output type is divided into conventional electromagnetic voltage and current output, EVT and ECT output, the action characteristics of each switch are greatly different, and the parameters are various, so that the test verification is inconvenient. Meanwhile, the real column switch is generally adopted to build a simulation environment aiming at a feeder automation control algorithm in China, and due to the fact that the real switch is large in size and weight, complex in wiring, unchanged in topology change of a feeder line and limited in analog quantity addition, the simulation test method can only simulate the topology of a specific switch type and specific parameters of a certain feeder line, cannot meet the simulation test requirements of various line wiring modes, various switch types and various parameter switches, and has great limitation.

Disclosure of Invention

In view of the above, the invention provides a column switch simulation device, which can realize full-function simulation of various types of column switches through parameter configuration, can be used for testing and verifying the functional performance of a feeder terminal, and can also be used for building a feeder line simulation environment in a laboratory environment, thereby greatly improving the universality, flexibility and convenience of test simulation and having high practical value.

The invention solves the technical problems by the following technical means:

the invention relates to a pole-mounted switch simulation device which comprises a single-chip microcomputer control system, wherein the single-chip microcomputer control system is connected with a spring operating mechanism, a permanent magnet operating mechanism, an electromagnetic operating mechanism and a switch auxiliary node, a parameter setting interface, a switch state indicating interface, a switch action process interface and a control system interface are arranged on the single-chip microcomputer control system, the switch auxiliary node is connected with a power distribution terminal test aerial plug interface, the single-chip microcomputer control system is respectively connected with an electromagnetic transformer, an EVT sensor and an ECT sensor, the electromagnetic transformer, the EVT sensor and the ECT sensor are all connected with the power distribution terminal test aerial plug interface, and the spring operating mechanism, the permanent magnet operating mechanism and the electromagnetic operating mechanism are all connected with the power distribution terminal test aerial plug interface;

the spring operating mechanism realizes the simulation of load carrying capacity during the bisection switching-on and spring energy storage through the configuration of the impedance of the switching-on and switching-off loop and the spring energy storage loop, realizes the simulation of the action time of the switch and the three-phase asynchronous time of the switch under the control of the single chip microcomputer control system, and supports the selection of the voltage grade of the switching-on and switching-off loop according to the parameter configuration and configures different loop impedances according to the voltage grade;

the permanent magnet operating mechanism realizes the simulation of bistable state and monostable state of the shunting and closing by parameter configuration, realizes the simulation of load capacity of a shunting and closing loop by the configuration of loop impedance, and realizes the simulation of switch action time and three-phase asynchronous time of a switch under the control of a singlechip control system;

the electromagnetic operating mechanism realizes the simulation of the load carrying capacity of the shunt and closing loop through the configuration of loop impedance, and realizes the simulation of the action time of the switch and the three-phase asynchronous time of the switch under the control of the singlechip control system;

under the control of a single chip microcomputer control system, the simulation of the switch auxiliary node of the column switch is realized according to the current state of the simulated column switch, the state quantity of a power distribution terminal is collected, and the simulation of the position separating, closing and non-energy storage states of the switch is realized;

under the control of a singlechip control system, the simulation of an output signal of an electromagnetic mutual inductor arranged in a column switch is realized through an analog-to-digital conversion and power amplification circuit, and the simulation is used for an analog quantity acquisition interface of an electromagnetic power distribution terminal, wherein voltage and current rated values are automatically adjusted according to parameter selection;

under the control of a singlechip control system, the simulation of an EVT sensor output signal and an ECT sensor output signal built in a column switch is realized through analog-to-digital conversion, an output driving circuit and an operational amplifier circuit, and the simulation is used for an electronic distribution terminal analog quantity acquisition interface;

the single chip microcomputer control system configures and selects the corresponding operating mechanism type and power distribution terminal interface of the device according to the parameters;

the single chip microcomputer control system configures the corresponding analog quantity output type of the selection device and the power distribution terminal interface according to the parameters;

the standard definition of the pole-mounted switch provides a power distribution terminal test aerial plug interface with a power distribution terminal;

the parameter setting interface adopts a touch screen liquid crystal interface, realizes the selection of switch types and parameters through local setting, and realizes the simulation of a specific type and parameter column switch;

the switch state indicating interface realizes direct indication of the switch on-off state, the energy storage state and the electrified state of two sides of the switch under the control of the single chip microcomputer control system according to the current running state of the device according to the requirement of indication of the switch panel on the column;

under the control of the singlechip control system, simulating the switching-on and switching-off, energy storage actions, action sound effects and action progress pointer processes of the switch according to the current running state of the device;

the single chip microcomputer control system realizes communication connection with the upper computer through a control system interface, the control system interface realizes communication connection with the upper computer through an Ethernet interface, and when the power distribution terminal is tested in functional performance, the single chip microcomputer control system controls a simulation device of the single chip microcomputer to simulate and output normal and fault states to test and verify a tested product through upper computer software; when the feeder line is simulated, the upper computer software can control a plurality of devices to work coordinately, so that the simulation of various running states of the feeder line is realized, and the feeder automation function of the power distribution terminal is verified.

Currently, verification aiming at the functional performance of a feeder terminal is generally completed by adopting a plurality of devices according to detection items, for example: and the relay protection tester is adopted to verify the analog quantity acquisition part, and the analog circuit breaker is adopted to control, acquire and verify the on-off state and the like. However, the column switch type includes elastic operation, permanent magnet and electromagnetism, the elastic operation power supply is divided into 48V and 24V, the permanent magnet is divided into monostable state and bistable state, the analog output type is divided into conventional electromagnetic voltage and current output, EVT and ECT output, the action characteristics of each switch are greatly different, and the parameters are various, so that the test verification is inconvenient. Meanwhile, the real column switch is generally adopted to build a simulation environment aiming at a feeder automation control algorithm in China, and due to the fact that the real switch is large in size and weight, complex in wiring, unchanged in topology change of a feeder line and limited in analog quantity addition, the simulation test method can only simulate the topology of a specific switch type and specific parameters of a certain feeder line, cannot meet the simulation test requirements of various line wiring modes, various switch types and various parameter switches, and has great limitation.

The pole-mounted switch simulation device designed by the patent aims to solve the difficult problems of feeder terminal function performance detection and feeder automation simulation environment construction, realizes simulation of all switch types, interface parameters and action characteristics through parameter configuration, improves universality, flexibility and convenience of test simulation, and improves test efficiency and completeness.

The simulation of the on-column switch is realized, and the on-column switch is used for detecting a power distribution terminal and building a feeder line simulation environment. The pole-mounted switch simulation device is designed to solve the problems of detection of the functional performance of a feeder terminal and establishment of a feeder automation simulation environment, and realizes simulation of all switch types, interface parameters and action characteristics through parameter configuration, so that the universality, flexibility and convenience of test simulation are improved, and the test efficiency and completeness are improved.

The invention has the beneficial effects that: the pole-mounted switch simulation device described in the patent is used for full-function simulation of a pole-mounted switch, meets the requirements of testing the functional performance of a power distribution terminal and building a feeder automation simulation test environment, realizes simulation of three types of pole-mounted switches including elastic operation, permanent magnet and electromagnetism by adopting one device, can flexibly select the parameters of the switch, has strong universality and flexibility, brings great convenience, and can improve the comprehensiveness and the test efficiency of the functional performance test of the power distribution terminal; when a feeder line automatic simulation environment is built, a heavy column switch can be replaced, flexible selection of various types of switches can be realized, and the topological structure of a feeder line can be controlled and changed in a communication mode through upper computer software, so that the complexity and the workload caused by wiring are avoided, the built simulation environment is high in universality and flexibility, repeated investment is avoided, the workload in the test process is reduced, and the test efficiency is improved;

the pole-mounted switch analogue means that this patent designed has solved feeder terminal functional performance and feeder automation simulation test's limitation, and commonality, flexibility, convenience are strong, can greatly improve test completeness and efficiency of software testing.

Drawings

FIG. 1 is a flow chart of the operation of the present invention.

FIG. 2 is a schematic view of the structure of the present invention.

Fig. 3 is a schematic structural view of the spring operating mechanism of the present invention.

Fig. 4 is a schematic structural diagram of the permanent magnet operating mechanism of the present invention.

Fig. 5 is a schematic structural diagram of the electromagnetic operating mechanism of the present invention.

Fig. 6 is a schematic diagram of a switch auxiliary node structure according to the present invention.

Fig. 7 is a flow chart of the output simulation of the electromagnetic transformer according to the present invention.

FIG. 8 is a flow chart of an EVT, ECT sensor output simulation of the present invention.

FIG. 9 is a flow chart of the switch status indication according to the present invention.

FIG. 10 is a flow chart of the simulation of the switching process according to the present invention.

Detailed Description

The invention will be described in detail below with reference to the following figures and specific examples: the pole-mounted switch analogue means of this embodiment, the pole-mounted switch analogue means that this patent described, it is used for satisfying the needs of setting up distribution terminal functional performance's test and the automatic simulation test environment of feeder line to the full function simulation of pole-mounted switch.

As shown in fig. 1 and 2, the column switch simulation apparatus of the present invention includes a single chip microcomputer control system 1, the single chip microcomputer control system 1 is connected to a spring operating mechanism 2, a permanent magnet operating mechanism 3, an electromagnetic operating mechanism 4 and a switch auxiliary node 5, the single chip microcomputer control system 1 is provided with a parameter setting interface 6, a switch state indicating interface 7, a switch action process interface 8 and a control system interface 9, the switch auxiliary node 5 is connected to a distribution terminal test aerial socket interface 10, the single chip microcomputer control system 1 is respectively connected to an electromagnetic transformer 11, an EVT sensor 12 and an ECT sensor 13, the electromagnetic transformer 11, the EVT sensor 12 and the ECT sensor 13 are all connected to the distribution terminal test aerial socket interface 10, and the spring operating mechanism 2, the permanent magnet operating mechanism 3 and the electromagnetic operating mechanism 4 are all connected to the distribution terminal test aerial socket interface 10;

the spring operating mechanism 2 realizes the simulation of load carrying capacity during the bisection and switching-on and spring energy storage through the configuration of the impedance of the switching-on and switching-off circuit and the spring energy storage circuit, realizes the simulation of the action time of the switch and the three-phase asynchronous time of the switch under the control of the single chip microcomputer control system 1, and supports the selection of the voltage grade of the switching-on and switching-off circuit according to the parameter configuration and configures different circuit impedances according to the voltage grade;

the permanent magnet operating mechanism 3 realizes the simulation of bistable state and monostable state of the shunting and closing by parameter configuration, realizes the simulation of load capacity of a shunting and closing loop by the configuration of loop impedance, and realizes the simulation of switch action time and switch three-phase different-phase time under the control of the single chip microcomputer control system 1;

the electromagnetic operating mechanism 4 realizes the simulation of the load carrying capacity of the shunt and close circuit through the configuration of the loop impedance, and realizes the simulation of the action time of the switch and the three-phase asynchronous time of the switch under the control of the single chip microcomputer control system 1;

under the control of the single chip microcomputer control system 1, the simulation of the switch auxiliary node 5 of the column switch is realized according to the current state of the simulated column switch, and the simulation of the position separating, closing and non-energy storage states of the switch is realized for the acquisition of the state quantity of the power distribution terminal;

under the control of the singlechip microcomputer control system 1, the simulation of an output signal of an electromagnetic mutual inductor 11 arranged in the column switch is realized through an analog-to-digital conversion and power amplification circuit, and the simulation is used for an analog quantity acquisition interface of an electromagnetic power distribution terminal, wherein voltage and current rated values are automatically adjusted according to parameter selection;

under the control of the singlechip microcomputer control system 1, the simulation of an EVT sensor 12 output signal and an ECT sensor 13 output signal which are arranged in a column switch is realized through analog-digital conversion, an output driving circuit and an operational amplifier circuit, and the simulation is used for an electronic power distribution terminal analog quantity acquisition interface;

the single chip microcomputer control system 1 configures and selects the corresponding operating mechanism type of the device and the power distribution terminal interface according to the parameters;

the single chip microcomputer control system 1 configures and selects the corresponding analog quantity output type of the device and the power distribution terminal interface according to the parameters;

the standard definition of the pole top switch provides a power distribution terminal test aerial socket interface 10 with a power distribution terminal;

the parameter setting interface 6 adopts a touch screen liquid crystal interface, realizes the selection of switch types and parameters through local setting, and realizes the simulation of a specific type and parameter column switch;

the switch state indication interface 7 realizes direct indication of the switch on-off state, the energy storage state and the electrified state of two sides of the switch under the control of the single chip microcomputer control system 1 according to the current operation state of the device according to the requirement of indication of the switch panel on the column;

under the control of the single chip microcomputer control system 1, the switching-on and switching-off, energy storage actions, action sound effects and action progress pointer processes of the switch are simulated according to the current running state of the device;

the single chip microcomputer control system 1 is in communication connection with an upper computer through a control system interface 9, the control system interface 9 is in communication connection with the upper computer through an Ethernet interface, and when the power distribution terminal is in functional performance test, a simulation device of a single chip microcomputer is controlled through upper computer software to simulate and output normal and fault states to test and verify a tested product; when the feeder line is simulated, the upper computer software can control a plurality of devices to work coordinately, so that the simulation of various running states of the feeder line is realized, and the feeder automation function of the power distribution terminal is verified.

The device of the invention takes a singlechip control system as a core, realizes the simulation of the switch by expanding an operating mechanism, outputting analog quantity and outputting a switch auxiliary node, realizes the simulation of the switch state and the action process by indicating the switch state and simulating the switch action process, realizes the setting of the switch parameter by a parameter setting interface, and realizes the communication connection with an upper computer by a control system interface.

The device uses single chip microcomputer control system as the core, realizes the simulation to the switch through extension operating device, analog output, switch auxiliary node output, through switch state instruction, the simulation of switch action process realization to switch state and action process, realizes the setting to the switch parameter through the parameter setting interface, realizes the communication connection with the host computer through the control system interface, and each component function introduces:

(1) single chip microcomputer control system

The single chip microcomputer control system is the core of the whole device, and is connected with the elastic operation mechanism, the permanent magnet and the electromagnetic operation mechanism to simulate the switch operation mechanism and select the corresponding switch type and power distribution terminal interface according to the parameters; the interface with the switch auxiliary node is used for simulating various auxiliary node states of the switch; electromagnetic mutual inductor or EVT, ECT analog quantity output is generated in a simulation mode, and an analog quantity interface with a power distribution terminal is realized through parameter selection; the operation parameters of the switch to be simulated are set on site through the parameter setting interface; the indication of the switch state is realized through the interface with the switch state indication; the simulation of the switching action process is realized through the interface with the switching action process; the output state of the on-column switch simulation device is controlled by the upper computer control software through the control system interface, so that the requirement of centralized coordinated control of a plurality of devices during automatic feeder simulation is met.

(2) Spring operating mechanism

The device supports the selection of the voltage grade of the opening and closing circuit according to parameter configuration and the configuration of different loop impedances according to the voltage grade, and is shown in figure 3.

(3) Permanent magnet operating mechanism

When the operating mechanism for simulating the on-column switch is a permanent magnet operating mechanism, bistable and monostable simulation of the shunting and closing can be realized through parameter configuration, load carrying capacity simulation of a shunting and closing loop can be realized through configuration of loop impedance, and simulation of action time of the switch and three-phase different-phase time of the switch can be realized under the control of a single chip microcomputer control system, as shown in fig. 4.

(4) Electromagnetic operating mechanism

When the operating mechanism for simulating the column switch is an electromagnetic operating mechanism, the simulation of the load carrying capacity of a shunt closing loop can be realized through the configuration of loop impedance, and the simulation of the action time of the switch and the three-phase asynchronous time of the switch can be realized under the control of a single chip microcomputer control system, as shown in fig. 5.

(5) Switch auxiliary node

Under the control of the single chip microcomputer control system, the simulation of the auxiliary node of the column switch is realized according to the current state of the simulated column switch, and the simulation is used for collecting the state quantity of the power distribution terminal, such as the state simulation of the switch such as the open position, the closed position, the non-stored energy and the like, as shown in fig. 6.

(6) Electromagnetic mutual inductor output simulation

Under the control of a singlechip control system, the simulation of output signals of an electromagnetic mutual inductor built in a column switch is realized through analog-to-digital conversion, a power amplification circuit and the like, and the simulation is used for an analog quantity acquisition interface of an electromagnetic distribution terminal, wherein voltage and current rated values can be automatically adjusted according to parameter selection, as shown in fig. 7.

(7) EVT, ECT output simulation

Under the control of the singlechip control system, the simulation of output signals of EVT (EVT) and ECT (electro-static discharge) sensors built in a column switch is realized through analog-digital conversion, an output driving circuit and the like, and the simulation is used for an analog quantity acquisition interface of an electronic power distribution terminal, as shown in figure 8.

(8) Switch operating mechanism type selection

The single chip microcomputer control system configures and selects the corresponding operating mechanism type and power distribution terminal interface of the device according to the parameters;

(9) analog output selection

The single chip microcomputer control system configures the corresponding analog quantity output type of the selection device and the power distribution terminal interface according to the parameters;

(10) power distribution terminal test aerial plug interface

Providing an aerial plug interface with a power distribution terminal according to the standard definition of the pole-mounted switch;

(11) parameter setting interface

The touch screen liquid crystal interface is adopted, and the selection of the switch type and the parameters is realized through local setting, so that the simulation of the device on the column switch with the specific type and the parameters is realized.

(12) Switch state indication

According to the requirement of indication of the column switch panel, direct indication of the switch on-off state, the energy storage state and the electrified state of two sides of the switch is realized under the control of a single chip microcomputer control system according to the current running state of the device, as shown in fig. 9.

(13) Switch action process simulation

Under the control of the single chip microcomputer control system, the action processes of switching on and off, energy storage and the like of the switch are simulated according to the current running state of the device, wherein the action processes comprise action sound effects and action progress pointers, and the action sound effects and the action progress pointers are shown in fig. 10.

(14) Control system interface

The device realizes the interface with the upper computer control system through the Ethernet interface. When the functional performance of the power distribution terminal is tested, the software of the upper computer can control a single simulation device to simulate and output normal and fault states to test and verify a tested product; when the feeder line is simulated, the upper computer software can control a plurality of devices to work coordinately, so that the simulation of various running states of the feeder line is realized, and the feeder automation function of the power distribution terminal is verified.

The working principle of the invention is as follows:

(1) power distribution terminal functional performance test

The power distribution terminal is connected with an aerial plug interface of the on-column switch simulation device through a standard aerial plug, after the simulation device is powered on, parameters are set through a parameter setting panel according to configuration information of a tested product, namely, parameters such as the type of a switch operating mechanism, the type of analog quantity output, the time of switch action, the time of switch three-phase asynchronization and the like are selected, and the on-column switch simulation device of a single unit can be controlled to simulate normal output and various fault states through upper computer software to realize test verification of the power distribution terminal.

(2) Feeder automation simulation test

Firstly, configuring a plurality of on-column switch simulation devices into a feeder line topology framework according to test requirements, and connecting a power distribution terminal corresponding to each on-column switch simulation device with an aerial plug interface on the power distribution terminal through a standard aerial plug; each simulation device is electrified, and parameters are set through a parameter setting panel according to the configuration information of the tested object, namely, the parameters such as the type of a switch operating mechanism, the type of analog quantity output, the switch action time, the switch three-phase asynchronous time and the like are selected; the upper computer software can simultaneously control the simulation devices to output simultaneously, simulate the normal and various fault states of the feeder line, and verify the feeder automation function of the power distribution terminal.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.