CN108288931B - Control method and control device - Google Patents
Control method and control device Download PDFInfo
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- CN108288931B CN108288931B CN201711499497.6A CN201711499497A CN108288931B CN 108288931 B CN108288931 B CN 108288931B CN 201711499497 A CN201711499497 A CN 201711499497A CN 108288931 B CN108288931 B CN 108288931B
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- generating set
- wind generating
- main loop
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- circuit breaker
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/006—Means for protecting the generator by using control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
Abstract
The embodiment of the application provides a control method and related equipment, which are used for avoiding the damage of spare parts of a wind generating set caused by the fact that a circuit breaker in a main loop of the wind generating set is tripped by a hardware switch. The method in the embodiment of the application comprises the following steps: acquiring a hard tripping set value of a circuit breaker of a main loop of a wind generating set, wherein the main loop of the wind generating set is a rotor excitation loop of a double-fed asynchronous generator of the wind generating set; setting the setting value of the main loop current of the wind generating set to be lower than the set value of the hard tripping of the circuit breaker; monitoring the current value of the main loop of the wind generating set; judging whether the current value is greater than the setting value; and when the current value is greater than the setting value, controlling software protection software of the wind generating set to protect and shut down.
Description
Technical Field
The present disclosure relates to wind power generation, and more particularly, to a control method and a control device.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition for a predetermined time. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current.
The breaker is used for cutting off and connecting a load circuit and cutting off a fault circuit, so that the accident is prevented from being enlarged, and the safe operation is ensured. Under the condition that the electric appliance is overloaded or abnormally operated, if a fault occurs, the circuit breaker can automatically disconnect the switch, so that the electric appliance and the circuit are protected; in addition, the circuit breaker is provided with an electric leakage protection device and has the function of electric leakage protection. At present, the circuit breaker is widely applied to wind power generation systems.
However, it has been found through research that in a wind turbine system, a direct trip of a circuit breaker may damage spare parts in a wind turbine generator system, and thus a circuit breaker trip fault has become one of the main faults of the wind turbine generator system.
Disclosure of Invention
The embodiment of the application provides a control method and related equipment, which are used for avoiding the damage of spare parts of a wind generating set caused by the fact that a circuit breaker in a main loop of the wind generating set is tripped by a hardware switch.
A first aspect of an embodiment of the present application provides a control method, which is applied to a wind power generation system and specifically includes:
acquiring a hard tripping set value of a circuit breaker of a main loop of a wind generating set, wherein the main loop of the wind generating set is a rotor excitation loop of a double-fed asynchronous generator of the wind generating set;
setting the setting value of the main loop current of the wind generating set to be lower than the set value of the hard tripping of the circuit breaker;
monitoring the current value of the main loop of the wind generating set;
judging whether the current value is greater than the setting value;
and when the current value is greater than the setting value, controlling the software of the wind generating set to protect and stop.
Optionally, when the current value is not greater than the setting value, the method further includes:
and controlling the wind generating set to keep running.
Optionally, when the current value is greater than the setting value, the method further includes:
monitoring the duration of the current value of the main loop of the wind generating set when the current value is greater than the setting value;
the control of the software protection shutdown of the wind generating set comprises the following steps:
and when the duration time is the preset duration time from the threshold duration time, controlling the software protection shutdown of the wind generating set, wherein the threshold duration time is the tripping buffer duration time of a circuit breaker of the main loop of the wind generating set.
Optionally, after the controlling the software protection shutdown of the wind generating set, the method further comprises:
reporting software protection shutdown information to a background management system of the wind generating set so that a worker can overhaul the wind generating set according to the software protection shutdown information.
Optionally, the circuit breaker is a magnetic protection type circuit breaker or a thermal protection type circuit breaker.
A second aspect of the embodiments of the present application provides a control device, which is applied to a wind power generation system, and specifically includes:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a circuit breaker hard tripping set value of a main loop of a wind generating set, and the main loop of the wind generating set is a rotor excitation loop of a double-fed asynchronous generator of the wind generating set;
the setting unit is used for setting the setting value of the main loop current of the wind generating set to be lower than the hard tripping setting value of the circuit breaker;
the monitoring unit is used for monitoring the current value of the main loop of the wind generating set;
the judging unit is used for judging whether the current value is greater than the setting value;
and the control unit is used for controlling the software protection shutdown of the wind generating set when the current value is greater than the setting value.
Optionally, the monitoring unit is further configured to:
when the current value is larger than the setting value, monitoring the duration of the current value of the main loop of the wind generating set when the current value is larger than the setting value;
the control unit is specifically configured to:
and when the duration time is the preset duration time from the threshold duration time, controlling the software protection shutdown of the wind generating set, wherein the threshold duration time is the tripping buffer duration time of a circuit breaker of the main loop of the wind generating set.
Optionally, the apparatus further comprises:
and the reporting unit is used for reporting software protection shutdown information to a background management system of the wind generating set so that a worker can overhaul the wind generating set according to the software protection shutdown information.
A third aspect of embodiments of the present application provides a processor for executing a computer program, where the computer program executes to perform the steps of the control method according to the above aspects.
A fourth aspect of embodiments of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein: the computer program, when executed by a processor, controls the steps of the method of the aspects described above.
In conclusion, in the operation process of the wind generating set, the current value of the main loop of the wind generating set is monitored in real time, and when the current value of the main loop of the wind generating set is higher than the setting value of the current of the main loop of the wind generating set, the wind generating set is controlled to be protected and shut down by alarm software, so that the condition that a circuit breaker in the main loop of the wind generating set is tripped by a hardware switch to damage spare parts of the wind generating set is avoided.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a control method provided in an embodiment of the present application;
fig. 2 is a schematic diagram of an embodiment of a control device provided in an embodiment of the present application;
fig. 3 is a schematic diagram of a hardware structure of a control device according to an embodiment of the present application.
Detailed Description
The embodiment of the application provides a control method and related equipment, which are used for avoiding the damage of spare parts of a wind generating set caused by the fact that a circuit breaker in a main loop of the wind generating set is tripped by a hardware switch.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, fig. 1 is a schematic diagram of an embodiment of a control method provided in an embodiment of the present application, including:
101. and acquiring a hard tripping set value of a circuit breaker of a main circuit of the wind generating set.
In this embodiment, a hard trip set value of a circuit breaker of a main circuit of a wind turbine generator system can be obtained, wherein the main circuit of the wind turbine generator system is a rotor excitation circuit of a doubly-fed asynchronous generator of the wind turbine generator system. The embodiment does not specifically limit the manner of obtaining the hard trip set value of the circuit breaker of the main circuit of the wind turbine generator system.
The circuit breaker of the main circuit of the wind turbine generator system may be a magnetic protection type circuit breaker, a thermal protection type circuit breaker, or other types of circuit breakers, and is not particularly limited.
102. Setting the setting value of the main loop current of the wind generating set to be lower than the set value of the hard tripping of the circuit breaker.
In this embodiment, the setting value of the main loop current of the wind turbine generator system may be set to be lower than the hard trip setting value of the circuit breaker. For example, the set value of the hard trip of the circuit breaker is 320A × 0.85, and at this time, the set value of the main loop current of the wind turbine generator system may be 270A, or may be other values.
It should be noted that the setting value in step 102 is also called a set value, that is, in the automatic control system, when a certain physical quantity reaches a certain value, a certain action will occur, and here, when the current of the main circuit of the wind turbine generator system reaches a certain value, a specific operation is performed.
103. And monitoring the current value of the main loop of the wind generating set.
In this embodiment, when the wind turbine generator system is in the operation process, the current value of the main loop of the wind turbine generator system can be monitored. The manner how the current value of the main circuit of the wind turbine generator system is monitored is not particularly limited herein.
It should be noted that, the setting value of the main circuit current of the wind generating set may be set to be lower than the hard trip set value of the circuit breaker through step 102, and the current value of the main circuit of the wind generating set may be monitored through step 103, however, there is no sequential limitation between these two steps, and step 102 may be executed first, or step 103 may be executed first, or executed simultaneously, and specifically, no limitation is made.
104. And judging whether the current value of the main loop of the wind generating set is larger than the setting value of the current of the main loop of the wind generating set, if so, executing step 106, and if not, executing step 105.
In this embodiment, after the current value of the main loop of the wind turbine generator system is monitored and the setting value of the current of the main loop of the wind turbine generator system is set, the current value of the main loop of the wind turbine generator system monitored in real time may be compared with the setting value of the current of the main loop of the wind turbine generator system, when the current value of the main loop of the wind turbine generator system is greater than the setting value of the current of the main loop of the wind turbine generator system, step 106 is executed, and when the current value of the main loop of the wind turbine generator system is not greater than the setting value of the current of.
105. And controlling the wind generating set to keep running.
In the embodiment, when the current value of the main loop of the wind generating set does not exceed the setting value of the main loop of the wind generating set, the wind generating set can be controlled to keep running in the current state, and no operation is executed.
106. And controlling software protection of the wind generating set to stop.
In the embodiment, when the current value of the main loop of the wind generating set is greater than the setting value of the current of the main loop of the wind generating set, software protection shutdown of the wind generating set is controlled, and the condition that a hardware switch of a circuit breaker is disconnected to cause damage to spare parts of the wind generating set is avoided.
It should be noted that thermal trip of the circuit breaker is an overheating protection action trip, and overheating protection is overload protection with a time delay trip and a time delay return characteristic. The circuit breakers below 63A cannot trip out of the opening within 1 hour when the rated current is 1.05 times of the rated current, and trip out when the rated current is more than 1 hour, and the circuit breakers above 63A cannot trip out of the opening within 2H when the rated current is 1.05 times of the rated current, and trip out when the rated current is more than 2H. The characteristic of the thermal trip of the circuit breaker is shown.
Based on the characteristic of thermal trip of the circuit breaker, when the current value of the main loop of the wind generating set is larger than the setting value of the current of the main loop of the wind generating set, the current value of the main loop of the wind generating set can be monitored to be larger than the setting value of the current of the main loop of the wind generating set, the duration of the current value of the main loop of the wind generating set is determined, whether the duration reaches the preset duration from the threshold duration can be judged, when the duration reaches the preset duration from the threshold duration, software protection shutdown of the wind generating set is controlled, and the threshold duration is the tripping buffer duration of the circuit breaker of the main loop of the wind generating set. For example, when the current value of the main loop of the wind generating set is 30A and the setting value of the current of the main loop of the wind generating set is 30A, the duration of monitoring the current value of the main loop of the wind generating set to be 30A is 55 minutes, the threshold duration is 1 hour, the preset duration is 5 minutes, and at this time, the software protection shutdown of the wind generating set can be controlled.
107. And reporting the software protection shutdown information to a background management system of the wind generating set so that a worker overhauls the wind generating set according to the software protection shutdown information.
In this embodiment, after the software protection shutdown of the wind turbine generator system is controlled, the software protection shutdown information may be reported to the background management system of the wind turbine generator system, so that a worker may repair the wind turbine generator system according to the software protection shutdown information, and damage to spare parts of the wind turbine generator system is avoided.
In conclusion, in the operation process of the wind generating set, the current value of the main loop of the wind generating set is monitored in real time, and when the current value of the main loop of the wind generating set is higher than the setting value of the current of the main loop of the wind generating set, the wind generating set is controlled to be protected and shut down by alarm software, so that the condition that a circuit breaker in the main loop of the wind generating set is tripped by a hardware switch to damage spare parts of the wind generating set is avoided.
The embodiments of the present application are described above from the viewpoint of the control method, and the embodiments of the present application are described below from the viewpoint of the control device.
Referring to fig. 2, fig. 2 is a schematic diagram of an embodiment of a control device according to an embodiment of the present application, including:
the acquiring unit 201 is used for acquiring a circuit breaker hard tripping set value of a main circuit of a wind generating set, wherein the main circuit of the wind generating set is a rotor excitation circuit of a double-fed asynchronous generator of the wind generating set;
the setting unit 202 is used for setting the setting value of the main loop current of the wind generating set to be lower than the set value of the hard tripping of the circuit breaker;
the monitoring unit 203 is used for monitoring the current value of the main loop of the wind generating set;
a judging unit 204, configured to judge whether the current value is greater than a setting value;
and the control unit 205 is used for controlling the software protection shutdown of the wind generating set when the current value is greater than the setting value.
And the reporting unit 206 is configured to report the software-protected shutdown information to a background management system of the wind turbine generator system, so that a worker overhauls the wind turbine generator system according to the software-protected shutdown information.
Wherein the monitoring unit 203 is further configured to:
when the current value is greater than the setting value, monitoring the duration of the current value of the main loop of the wind generating set when the current value is greater than the setting value;
the control unit 205 is specifically configured to:
and when the duration time is equal to the preset time from the threshold time, controlling the software of the wind generating set to protect the machine to stop, wherein the threshold time is the tripping buffer time of the circuit breaker of the main loop of the wind generating set.
The interaction manner between the components of the yaw control system in this embodiment is as described in the embodiment shown in fig. 1, and detailed description thereof is omitted here.
In conclusion, in the operation process of the wind generating set, the current value of the main loop of the wind generating set is monitored in real time, and when the current value of the main loop of the wind generating set is higher than the setting value of the current of the main loop of the wind generating set, the wind generating set is controlled to be protected and shut down by alarm software, so that the condition that a circuit breaker in the main loop of the wind generating set is tripped by a hardware switch to damage spare parts of the wind generating set is avoided.
Referring to fig. 3, an embodiment of the present application further provides a control apparatus, where the control apparatus includes a processor 301 and a memory 302, and the step 101 may be stored in the memory as a program, and the processor executes the program stored in the memory to implement a corresponding function.
The processor 301 includes a kernel, and the kernel calls a corresponding program from a memory. The kernel can be set to one or more, and the user data is updated by adjusting the kernel parameters.
The memory 302 may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
An embodiment of the present application provides a storage medium having a program stored thereon, which when executed by a processor implements the yaw control method.
The embodiment of the application provides a processor, wherein the processor is used for running a program, and the control method is executed when the program runs.
The embodiment of the application provides equipment, the equipment comprises a processor, a memory and a program which is stored on the memory and can run on the processor, and the following steps are realized when the processor executes the program:
acquiring a hard tripping set value of a circuit breaker of a main loop of a wind generating set, wherein the main loop of the wind generating set is a rotor excitation loop of a double-fed asynchronous generator of the wind generating set;
setting the setting value of the main loop current of the wind generating set to be lower than the set value of the hard tripping of the circuit breaker;
monitoring the current value of the main loop of the wind generating set;
judging whether the current value is greater than the setting value;
and when the current value is greater than the setting value, controlling the software of the wind generating set to protect and stop.
Optionally, when the current value is not greater than the setting value, the method further includes:
and controlling the wind generating set to keep running.
Optionally, when the current value is greater than the setting value, the method further includes:
monitoring the duration of the current value of the main loop of the wind generating set when the current value is greater than the setting value;
the control of the software protection shutdown of the wind generating set comprises the following steps:
and when the duration time is the preset duration time from the threshold duration time, controlling the software protection shutdown of the wind generating set, wherein the threshold duration time is the tripping buffer duration time of a circuit breaker of the main loop of the wind generating set.
Optionally, after the controlling the software protection shutdown of the wind generating set, the method further comprises:
reporting software protection shutdown information to a background management system of the wind generating set so that a worker can overhaul the wind generating set according to the software protection shutdown information.
Optionally, the circuit breaker is a magnetic protection type circuit breaker or a thermal protection type circuit breaker.
The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device:
acquiring a hard tripping set value of a circuit breaker of a main loop of a wind generating set, wherein the main loop of the wind generating set is a rotor excitation loop of a double-fed asynchronous generator of the wind generating set;
setting the setting value of the main loop current of the wind generating set to be lower than the set value of the hard tripping of the circuit breaker;
monitoring the current value of the main loop of the wind generating set;
judging whether the current value is greater than the setting value;
and when the current value is greater than the setting value, controlling the software of the wind generating set to protect and stop.
Optionally, when the current value is not greater than the setting value, the method further includes:
and controlling the wind generating set to keep running.
Optionally, when the current value is greater than the setting value, the method further includes:
monitoring the duration of the current value of the main loop of the wind generating set when the current value is greater than the setting value;
the control of the software protection shutdown of the wind generating set comprises the following steps:
and when the duration time is the preset duration time from the threshold duration time, controlling the software protection shutdown of the wind generating set, wherein the threshold duration time is the tripping buffer duration time of a circuit breaker of the main loop of the wind generating set.
Optionally, after the controlling the software protection shutdown of the wind generating set, the method further comprises:
reporting software protection shutdown information to a background management system of the wind generating set so that a worker can overhaul the wind generating set according to the software protection shutdown information.
Optionally, the circuit breaker is a magnetic protection type circuit breaker or a thermal protection type circuit breaker.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. A control method is characterized by being applied to a wind power generation system and comprising the following steps:
acquiring a hard tripping set value of a circuit breaker of a main loop of a wind generating set, wherein the main loop of the wind generating set is a rotor excitation loop of a double-fed asynchronous generator of the wind generating set;
setting the setting value of the main loop current of the wind generating set to be lower than the set value of the hard tripping of the circuit breaker;
monitoring the current value of the main loop of the wind generating set;
judging whether the current value is greater than the setting value;
when the current value is greater than the setting value, controlling the software of the wind generating set to protect and stop;
when the current value is greater than the setting value, monitoring the duration of the current value greater than the setting value;
the control of the software protection shutdown of the wind generating set comprises the following steps:
and once the duration is equal to the preset duration from the threshold duration, controlling the software protection of the wind generating set to stop, wherein the threshold duration is the tripping buffer duration of a circuit breaker of the main loop of the wind generating set.
2. The method of claim 1, wherein when the current value is not greater than the setting value, the method further comprises:
and controlling the wind generating set to keep running.
3. The method of claim 1, wherein after the controlling the wind turbine generator system software protection shutdown, the method further comprises:
reporting software protection shutdown information to a background management system of the wind generating set so that a worker can overhaul the wind generating set according to the software protection shutdown information.
4. Method according to claim 1 or 2, characterized in that the circuit breaker is a magnetically or thermally protected circuit breaker.
5. A control device, applied to a wind power generation system, includes:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a circuit breaker hard tripping set value of a main loop of a wind generating set, and the main loop of the wind generating set is a rotor excitation loop of a double-fed asynchronous generator of the wind generating set;
the setting unit is used for setting the setting value of the main loop current of the wind generating set to be lower than the hard tripping setting value of the circuit breaker;
the monitoring unit is used for monitoring the current value of the main loop of the wind generating set;
the judging unit is used for judging whether the current value is greater than the setting value;
the control unit is used for controlling the software protection shutdown of the wind generating set when the current value is greater than the setting value;
the monitoring unit is further configured to:
when the current value is greater than the setting value, monitoring the duration of the current value greater than the setting value;
the control unit is specifically configured to:
and once the duration is equal to the preset duration from the threshold duration, controlling the software protection of the wind generating set to stop, wherein the threshold duration is the tripping buffer duration of a circuit breaker of the main loop of the wind generating set.
6. The apparatus of claim 5, further comprising:
and the reporting unit is used for reporting software protection shutdown information to a background management system of the wind generating set so that a worker can overhaul the wind generating set according to the software protection shutdown information.
7. A processor for executing a computer program, the computer program when executing performing the method according to any of claims 1 to 4.
8. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program when executed by a processor implementing the steps of the method according to any one of claims 1 to 4.
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| 胡国强."风力发电机组变流器的安全保护功能测试方法".<电工电气>.2016,全文. * |
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| CN108288931A (en) | 2018-07-17 |
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