阅读说明：本技术 一种柴油发电动力总成的自启开关控制方法 (Self-starting switch control method of diesel power generation power assembly ) 是由 黄第云 于 2021-06-18 设计创作，主要内容包括：本发明提供了一种柴油发电动力总成的自启开关控制方法,属于柴油发电动力总成技术领域。该柴油发电动力总成的自启开关控制方法当市电停电时或者其它重要机组启动的信号,经延时确认后,机组能够自动启动,自动启动方式为电源启动或者钥匙启动,并且自动确认发电机组供电正常后,将负载切换到发电机组上,由发电机组供电,当市电恢复后,自动将负载转换至市电供给,切断发电机组供电,经延时确认自动冷却停机,从而达到了柴油发电动力总成便于自动开启和关闭的目的,当市电断电时,发电机组自动起动,提供电源,经过自动转换系统,将负载切换到发电机组上,由发电机组供电,当市电恢复后,自动将负载转换至市电供给,切断发电机组供电。(The invention provides a self-starting switch control method of a diesel power generation power assembly, and belongs to the technical field of diesel power generation power assemblies. The self-starting switch control method of the diesel power generation power assembly is characterized in that when commercial power is cut off or signals of other important units are started, the units can be automatically started after time delay confirmation, the automatic starting mode is power supply starting or key starting, and after the power supply of the generator set is automatically confirmed to be normal, the load is switched to the generator set, the generator set supplies power, when the commercial power is recovered, the load is automatically switched to the commercial power supply, the power supply of the generator set is cut off, and the automatic cooling shutdown is confirmed through time delay, so that the purpose of automatic opening and closing of the diesel power generation power assembly is achieved.)

1. A self-starting switch control method of a diesel power generation power assembly is characterized by comprising the following steps:

s1: delaying to confirm power failure: when a commercial power failure or other important unit starting signals are detected, the diesel power generation power assembly is automatically started successfully after the diesel power generation power assembly is delayed to confirm the power failure;

s2: load power supply: whether the power supply of the diesel power generation power assembly is normal or not can be automatically confirmed, and when the power supply of the assembly is normal, the diesel power generation power assembly supplies power to a load;

s3: and (3) delay confirmation shutdown: and when the mains supply is detected to be recovered to be normal, the diesel power generation power assembly is confirmed to be automatically cooled and shut down after time delay.

2. The method for controlling the self-starting switch of the diesel power generation power assembly as claimed in claim 1, wherein the step S1 is automatically started for 1-8 times and is adjustable, and the first-time starting success rate is greater than 99%.

3. The method for controlling the self-starting switch of the diesel power generation power assembly as recited in claim 1, wherein the cooling shutdown time of the step S3 is 0-300S and is adjustable.

4. The method as claimed in claim 1, wherein the step S1 includes a power supply start method and a key start method.

5. The method as claimed in claim 4, wherein the power supply is started in the same way as the basic generator set, the power supply is turned on, the start key is pressed after the key is turned, and the diesel power generation power assembly is stopped by pressing the emergency stop button after the diesel power generation power assembly is successfully started, and the key alarm is turned off.

6. The method as claimed in claim 4, wherein the key is started by turning the key clockwise, releasing the key after the diesel power assembly is started normally, and then pressing a module 'menu' key button to enter the module setting, and pressing a prompt to input a password.

7. The method as claimed in claim 6, wherein the password is entered and then the up and down keys are pressed to confirm whether the oil pressure and water temperature indexes are normal, and then the up and down speed switch is turned to full speed after confirming that the indexes are normal.

8. The method as claimed in claim 7, wherein the frequency of the diesel power generating assembly is increased to 51.5-52Hz, which indicates that the highest speed is reached, and all the indexes indicate that the diesel power generating assembly is operating well and the performance is adjusted successfully.

9. The method as claimed in claim 8, wherein when the diesel power generating powertrain is operated for a period of time and no fault is detected, the unit operator first rotates the "up-speed" knob slowly to the idle direction, the unit slowly reduces the speed, and when the value is restored to the position set by the factory before leaving the factory, the unit can be stopped by pressing the "emergency stop" button.

10. A method of controlling a self-opening switch of a diesel-electric powertrain as in claim 1, wherein the diesel-electric powertrain has a plurality of protective functions simultaneously, such as digitally displayed voltage, current, frequency, power factor, operating time, battery voltage, speed, etc.

Technical Field

The invention relates to the field of diesel power generation power assemblies, in particular to a self-starting switch control method of a diesel power generation power assembly.

Background

A diesel generating power assembly, namely a diesel generating set, is a power supply device which takes a diesel engine as a prime mover and drags a synchronous generator to generate electricity. The utility model relates to a start rapidly, operation easy maintenance, small investment, power generation facility stronger to the adaptability of environment, diesel generating set needs to supply power when the commercial power has a power failure temporarily, and diesel power generation power assembly need can automatic start when the commercial power has a power failure, supply power to the city, satisfy the demand of city operation, resume normal back when the commercial power simultaneously, need the automatically cooling to shut down, otherwise diesel power generation power assembly continues to open and can waste the energy, be unfavorable for energy-concerving and environment-protective demand, so how can control the automatic problem of waiting to solve of opening and closing of diesel power generation power assembly.

Accordingly, one skilled in the art provides a method for controlling a self-starting switch of a diesel power generation powertrain to solve the above-mentioned problems of the background art.

Disclosure of Invention

In order to make up for the defects, the invention provides a self-starting switch control method of a diesel power generation power assembly, aiming at solving the problem that the diesel power generation power assembly is inconvenient to automatically start and close.

The invention is realized by the following steps:

the invention provides a self-starting switch control method of a diesel power generation power assembly, which comprises the following steps:

s1: delaying to confirm power failure: when a commercial power failure or other important unit starting signals are detected, the diesel power generation power assembly is automatically started successfully after the diesel power generation power assembly is delayed to confirm the power failure;

s2: load power supply: whether the power supply of the diesel power generation power assembly is normal or not can be automatically confirmed, and when the power supply of the assembly is normal, the diesel power generation power assembly supplies power to a load;

s3: and (3) delay confirmation shutdown: and when the mains supply is detected to be recovered to be normal, the diesel power generation power assembly is confirmed to be automatically cooled and shut down after time delay.

In an embodiment of the present invention, the step S1 is automatically started for 1-8 times and is adjustable, and the success rate of the first start is greater than 99%.

In an embodiment of the invention, the cooling down time of the step S3 is 0-300S, and the cooling down time is adjustable.

In one embodiment of the present invention, the automatic start method of step S1 includes two methods, power start and key start.

In one embodiment of the invention, the power supply is started in the same way as the basic generator set, the power supply is firstly turned on, the start key is pressed after the key is twisted, and the diesel power generation power assembly is stopped when the emergency stop button is pressed after the diesel power generation power assembly is successfully started, and the key alarm is turned off.

In one embodiment of the invention, the key is started by firstly rotating the key in a clockwise direction, loosening the key after the diesel power generation power assembly is normally started, then pressing a module 'menu' key button to enter a module setting, and pressing a prompt to input a password.

In one embodiment of the invention, after the password is input, the up key and the down key are pressed for confirmation, whether the oil pressure index and the water temperature index are normal or not is checked, and the lifting speed switch is rotated to the full speed direction after the normality is confirmed.

In one embodiment of the invention, when the frequency of the diesel power generation power assembly rises to 51.5-52HZ, the highest speed is reached, and all indexes indicate that the diesel power generation power assembly runs well and the performance debugging is successful.

In an embodiment of the present invention, when the diesel power generation powertrain in step S3 operates for a period of time to determine that there is no fault and the engine needs to be stopped, the operator of the engine set first slowly rotates the "speed increasing" knob to the idle direction, and the engine set slowly reduces the speed, and when the numerical value is restored to the position set by the factory before leaving the factory, the engine set can be stopped by pressing the "emergency stop" button.

In one embodiment of the invention, the diesel-electric powertrain simultaneously has numerous protective functions, such as digitally displayed voltage, current, frequency, power factor, runtime, battery voltage, speed, etc.

The invention has the beneficial effects that: the invention obtains a self-starting switch control method of a diesel power generation power assembly through the design, when in use, when the mains supply is powered off or signals of other important units are started, after time delay confirmation, the units can be automatically started, the automatic starting mode is power supply starting or key starting, and after the power supply of the generator set is automatically confirmed to be normal, the load is switched to the generator set through an automatic switching system (ATS) to be supplied with power by the generator set, after the mains supply is recovered, the load is automatically switched to the mains supply to cut off the power supply of the generator set, and after time delay confirmation, the automatic cooling shutdown is carried out, thereby achieving the purpose that the diesel power generation power assembly is convenient to automatically start and shut down, when the mains supply is powered off, the generator set is automatically started to provide the power, the load is switched to the generator set through the automatic switching system to be supplied with power by the generator set, after the mains supply is recovered, and the load is automatically converted into the mains supply, and the power supply of the generator set is cut off.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic flow chart of a self-starting switch control method of a diesel power generation powertrain according to an embodiment of the present invention.

Detailed Description

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1, the present invention provides a method for controlling a self-starting switch of a diesel power assembly, comprising the following steps:

s1: delaying to confirm power failure: when a commercial power failure or other important unit starting signals are detected, the diesel power generation power assembly is automatically started successfully after the diesel power generation power assembly is delayed to confirm the power failure, and the step S1 is automatically started for 1 time, and the success rate of the first start is more than 99%.

The automatic starting method of the step S1 includes two methods of power supply starting and key starting, the power supply starting and the basic generator set starting are the same, firstly, the power supply is turned on, the key is turned, the starting key is pressed, when the diesel power generation power assembly is successfully started, the engine is stopped by pressing the emergency stop button, the key alarm is turned off, the key is started by firstly rotating the key in the clockwise direction, the key is loosened after the diesel power generation power assembly is normally started, then the key enters the module setting by pressing the module menu key button, the password is input by pressing the prompt, the password is input, the key is pressed to confirm whether the oil pressure and the water temperature indexes are normal, the lifting speed switch is rotated to the full speed direction after the normal operation is confirmed, when the frequency of the diesel power assembly is increased to 51.5-52HZ, the highest speed is indicated, at this time, all the indexes normally indicate that the diesel power assembly is well operated, the performance debugging is successful.

S2: load power supply: the system can automatically confirm whether the power supply of the diesel power generation power assembly is normal, when the power supply of the assembly is normal, the diesel power generation power assembly supplies power to a load, and after the power supply of the generator set is confirmed to be normal, the load is switched to the generator set through an Automatic Transfer System (ATS) and the generator set supplies power.

The ATS has the basic function that when a main power supply (mains supply) fails, the ATS automatically switches a load to a standby power supply (generator set) end after 0-10 seconds of delay; after the mains supply is recovered, the ATS automatically switches the load to the mains supply end after 0-10 seconds of delay, the switching delay of the ATS cabinet ensures the stability of various electric parameters of the mains supply or a generator set before switching, the ATS has the function of mains supply priority, namely, in the power supply state of the generator set, as long as the mains supply is recovered to be normal, the ATS is immediately switched to the mains supply for power supply, when a mains supply fault signal is detected, a self-starting control signal can be sent in time, the generator set is automatically started and is ready for power supply, and the ATS has mechanical interlocking and electrical interlocking, so that the accuracy and safety of switching are ensured; meanwhile, the ATS has the function of open-phase protection.

S3: and (3) delay confirmation shutdown: when the fact that the commercial power is recovered to be normal is detected, the diesel power generation power assembly is confirmed to be automatically cooled and shut down in a delayed mode, when the diesel power generation power assembly is determined to be free of faults and to be shut down in a step S3, firstly, a set operator slowly rotates a speed increasing knob to the idling direction, the set slowly reduces the speed, and when the numerical value is recovered to a position set by a factory before the factory leaves the factory, the set can be shut down by pressing an emergency stop button.

The diesel power generation power assembly has numerous protection functions simultaneously, such as digital display voltage, current, frequency, power factor, operation time, battery voltage, rotational speed and other parameters, and has the following components, assembly components: the unit controller, the button, the battery floats charger, the fuse, the relay, pilot lamp etc. the operating function: the local unit starts/stops running and suddenly stops; self-starting and automatic switching with the mains supply; parallel operation/parallel operation; programmable input/output interface, RS232/485 interface, open Modbus protocol, CAN communication, realize functions such as remote control, remote signaling, telemetering measurement, long-range reading parameter, long-range start/shut down, display function: three-phase voltage, three-phase current, rotational speed, frequency, water temperature, oil pressure, active power, reactive power, power factor, apparent power, operating time, starting times, storage battery voltage, active power, reactive power, generator voltage, frequency, phase difference and other synchronous parameters, and an alarm function: low oil pressure, high water temperature, overspeed, over-frequency, failed start, overcurrent, over-high or over-low voltage, unbalanced current, reverse power protection shutdown and public alarm switch output.

Example two

Referring to fig. 1, the present invention provides a method for controlling a self-starting switch of a diesel power assembly, comprising the following steps:

s1: delaying to confirm power failure: when a commercial power failure or other important unit starting signals are detected, the diesel power generation power assembly is automatically started successfully after the diesel power generation power assembly is delayed to confirm the power failure, and the step S1 is automatically started for 4 times, and the success rate of the first start is more than 99%.

The automatic starting method of the step S1 includes two methods of power supply starting and key starting, the power supply starting and the basic generator set starting are the same, firstly, the power supply is turned on, the key is turned, the starting key is pressed, when the diesel power generation power assembly is successfully started, the engine is stopped by pressing the emergency stop button, the key alarm is turned off, the key is started by firstly rotating the key in the clockwise direction, the key is loosened after the diesel power generation power assembly is normally started, then the key enters the module setting by pressing the module menu key button, the password is input by pressing the prompt, the password is input, the key is pressed to confirm whether the oil pressure and the water temperature indexes are normal, the lifting speed switch is rotated to the full speed direction after the normal operation is confirmed, when the frequency of the diesel power assembly is increased to 51.5-52HZ, the highest speed is indicated, at this time, all the indexes normally indicate that the diesel power assembly is well operated, the performance debugging is successful.

S2: load power supply: the system can automatically confirm whether the power supply of the diesel power generation power assembly is normal, when the power supply of the assembly is normal, the diesel power generation power assembly supplies power to a load, and after the power supply of the generator set is confirmed to be normal, the load is switched to the generator set through an Automatic Transfer System (ATS) and the generator set supplies power.

The ATS has the basic function that when a main power supply (mains supply) fails, the ATS automatically switches a load to a standby power supply (generator set) end after 0-10 seconds of delay; after the mains supply is recovered, the ATS automatically switches the load to the mains supply end after 0-10 seconds of delay, the switching delay of the ATS cabinet ensures the stability of various electric parameters of the mains supply or a generator set before switching, the ATS has the function of mains supply priority, namely, in the power supply state of the generator set, as long as the mains supply is recovered to be normal, the ATS is immediately switched to the mains supply for power supply, when a mains supply fault signal is detected, a self-starting control signal can be sent in time, the generator set is automatically started and is ready for power supply, and the ATS has mechanical interlocking and electrical interlocking, so that the accuracy and safety of switching are ensured; meanwhile, the ATS has the function of open-phase protection.

S3: and (3) delay confirmation shutdown: when the fact that the commercial power is recovered to be normal is detected, the diesel power generation power assembly is confirmed to be automatically cooled and shut down in a delayed mode, when the diesel power generation power assembly is determined to be free of faults and to be shut down in a step S3, firstly, a set operator slowly rotates a speed increasing knob to the idling direction, the set slowly reduces the speed, and when the numerical value is recovered to a position set by a factory before the factory leaves the factory, the set can be shut down by pressing an emergency stop button.

The diesel power generation power assembly has numerous protection functions simultaneously, such as digital display voltage, current, frequency, power factor, operation time, battery voltage, rotational speed and other parameters, and has the following components, assembly components: the unit controller, the button, the battery floats charger, the fuse, the relay, pilot lamp etc. the operating function: the local unit starts/stops running and suddenly stops; self-starting and automatic switching with the mains supply; parallel operation/parallel operation; programmable input/output interface, RS232/485 interface, open Modbus protocol, CAN communication, realize functions such as remote control, remote signaling, telemetering measurement, long-range reading parameter, long-range start/shut down, display function: three-phase voltage, three-phase current, rotational speed, frequency, water temperature, oil pressure, active power, reactive power, power factor, apparent power, operating time, starting times, storage battery voltage, active power, reactive power, generator voltage, frequency, phase difference and other synchronous parameters, and an alarm function: low oil pressure, high water temperature, overspeed, over-frequency, failed start, overcurrent, over-high or over-low voltage, unbalanced current, reverse power protection shutdown and public alarm switch output.

EXAMPLE III

Referring to fig. 1, the present invention provides a method for controlling a self-starting switch of a diesel power assembly, comprising the following steps:

s1: delaying to confirm power failure: when a commercial power failure or other important unit starting signals are detected, the diesel power generation power assembly is automatically started successfully after the diesel power generation power assembly confirms the power failure through time delay, and the step S1 is automatically started for 8 times, and the success rate of the first start is more than 99%.

The automatic starting method of the step S1 includes two methods of power supply starting and key starting, the power supply starting and the basic generator set starting are the same, firstly, the power supply is turned on, the key is turned, the starting key is pressed, when the diesel power generation power assembly is successfully started, the engine is stopped by pressing the emergency stop button, the key alarm is turned off, the key is started by firstly rotating the key in the clockwise direction, the key is loosened after the diesel power generation power assembly is normally started, then the key enters the module setting by pressing the module menu key button, the password is input by pressing the prompt, the password is input, the key is pressed to confirm whether the oil pressure and the water temperature indexes are normal, the lifting speed switch is rotated to the full speed direction after the normal operation is confirmed, when the frequency of the diesel power assembly is increased to 51.5-52HZ, the highest speed is indicated, at this time, all the indexes normally indicate that the diesel power assembly is well operated, the performance debugging is successful.

S2: load power supply: the system can automatically confirm whether the power supply of the diesel power generation power assembly is normal, when the power supply of the assembly is normal, the diesel power generation power assembly supplies power to a load, and after the power supply of the generator set is confirmed to be normal, the load is switched to the generator set through an Automatic Transfer System (ATS) and the generator set supplies power.

The ATS has the basic function that when a main power supply (mains supply) fails, the ATS automatically switches a load to a standby power supply (generator set) end after 0-10 seconds of delay; after the mains supply is recovered, the ATS automatically switches the load to the mains supply end after 0-10 seconds of delay, the switching delay of the ATS cabinet ensures the stability of various electric parameters of the mains supply or a generator set before switching, the ATS has the function of mains supply priority, namely, in the power supply state of the generator set, as long as the mains supply is recovered to be normal, the ATS is immediately switched to the mains supply for power supply, when a mains supply fault signal is detected, a self-starting control signal can be sent in time, the generator set is automatically started and is ready for power supply, and the ATS has mechanical interlocking and electrical interlocking, so that the accuracy and safety of switching are ensured; meanwhile, the ATS has the function of open-phase protection.

S3: and (3) delay confirmation shutdown: when the fact that the commercial power is recovered to be normal is detected, the diesel power generation power assembly is confirmed to be automatically cooled and shut down in a delayed mode, when the diesel power generation power assembly is determined to be free of faults and to be shut down in a step S3, firstly, a set operator slowly rotates a speed increasing knob to the idling direction, the set slowly reduces the speed, and when the numerical value is recovered to a position set by a factory before the factory leaves the factory, the set can be shut down by pressing an emergency stop button.

The diesel power generation power assembly has numerous protection functions simultaneously, such as digital display voltage, current, frequency, power factor, operation time, battery voltage, rotational speed and other parameters, and has the following components, assembly components: the unit controller, the button, the battery floats charger, the fuse, the relay, pilot lamp etc. the operating function: the local unit starts/stops running and suddenly stops; self-starting and automatic switching with the mains supply; parallel operation/parallel operation; programmable input/output interface, RS232/485 interface, open Modbus protocol, CAN communication, realize functions such as remote control, remote signaling, telemetering measurement, long-range reading parameter, long-range start/shut down, display function: three-phase voltage, three-phase current, rotational speed, frequency, water temperature, oil pressure, active power, reactive power, power factor, apparent power, operating time, starting times, storage battery voltage, active power, reactive power, generator voltage, frequency, phase difference and other synchronous parameters, and an alarm function: low oil pressure, high water temperature, overspeed, over-frequency, failed start, overcurrent, over-high or over-low voltage, unbalanced current, reverse power protection shutdown and public alarm switch output.

The working principle of the self-starting switch control method of the diesel power generation power assembly is as follows: when the diesel power generation power assembly is used, when the mains supply is in power failure or signals of starting other important units are confirmed in a delayed mode, the units can be automatically started, the automatic starting mode is power starting or key starting, and after the normal power supply of the generator set is automatically confirmed, the load is switched to the generator set through an automatic switching system (ATS), the generator set supplies power, when the mains supply is recovered, the load is automatically switched to the mains supply to cut off the power supply of the generator set, and the automatic cooling shutdown is confirmed in a delayed mode, so that the purpose that the diesel power generation power assembly is convenient to automatically start and close is achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.