CN117791749A - Control method of wind turbine generator and electronic equipment - Google Patents

Abstract

The embodiment of the invention provides a control method and electronic equipment of a wind turbine generator, and relates to the technical field of wind power generation, wherein the method comprises the following steps: receiving a scheduling instruction, determining a first scheduling active power corresponding to the scheduling instruction, collecting first parameters of all wind turbines, determining an active power sum of each wind turbine in an operating state in a wind power plant, calculating an absolute value of a difference value between the first scheduling active power and the active power sum, determining a dead zone of each wind turbine and calculating the dead zone sum of each dead zone when the absolute value is greater than or equal to a preset steady-state error threshold value of the whole plant, determining a shutdown set to be sequentially shutdown when the first scheduling active power is smaller than the active power sum and the first scheduling active power is smaller than the dead zone sum, and determining a startup set to be started when the first scheduling active power is greater than the active power sum and the shutdown set is not empty. The method and the device ensure safe and stable operation of the full-farm wind turbine generator.

Description

Control method of wind turbine generator and electronic equipment

Technical Field

The invention relates to the technical field of wind power generation, in particular to a control method of a wind turbine generator and electronic equipment.

Background

In recent years, with the continuous increase of the capacity of wind turbines and the capacity of wind farms, the large-scale grid-connected operation of new energy sources faces the challenge of safety and stability. Grid dispatching is also becoming more stringent in defining wind farm power generation requirements. The wind turbine generator consists of large-inertia mechanical equipment, a certain dead zone range exists on the aspect of power limitation, and the minimum power generation of the whole farm is limited to about 10-20 percent of the total capacity of the wind farm during the conventional secondary frequency modulation scheduling of the power grid. With the rapid increase of the wind power grid connection proportion, in order to meet the stability of a power grid, the power grid scheduling requires that a wind power plant respond to the control of full-plant 0 power. Because of the specificity of wind power, a specific regulation strategy is needed by a control system of a wind power station to enable a wind turbine to meet the scheduling requirement of a power grid.

At present, the wind turbine generator meets the extremely low power limit of power grid dispatching, and mainly performs an automatic shutdown mode on the wind turbine generator in a power control dead zone range.

The current method for regulating and controlling the start-stop strategy of the wind turbine generator in the industry only considers the requirement of executing the power grid dispatching instruction, and only considers the protection of the wind turbine which cannot be started and stopped frequently in the aspect of the safety of the wind turbine generator. The current status and history of each fan in the whole field are not fully considered. The power control fluctuation is larger under the limit of the limiting power, the power control precision is not up to standard, and after long-term dispatching and stopping of old 'disease-carrying' operation fans with the problem of blade clamping, the fans cannot be normally and smoothly started, so that the whole-field dispatching and operation of the wind power plant are affected.

Disclosure of Invention

The invention aims to provide a control method and electronic equipment of a wind turbine, which can ensure safe and stable operation of a full-farm wind turbine.

In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

in a first aspect, the present application provides a control method of a wind turbine, where the method includes:

receiving a scheduling instruction and determining a first scheduling active power corresponding to the scheduling instruction;

collecting first parameters of all wind turbines, wherein the first parameters comprise active power, wind speed, blade speed, running state and historical fault information of the wind turbines;

determining the sum of active power of all wind turbines in the wind power plant in an operation state;

calculating an absolute value of a difference between the first scheduled active power and the active power sum;

when the absolute value is larger than or equal to a preset full-field steady-state error threshold value, determining dead zones of the wind turbine generators and calculating dead zone sums of the dead zones;

when the first scheduling active power is smaller than the active power sum and the first scheduling active power is smaller than the dead zone sum, determining a shutdown set based on the first scheduling active power and first parameters of all wind turbines, and sequentially shutting down all the wind turbines according to the shutdown set;

And when the first scheduling active power is larger than the active power sum and the stopped set is not empty, determining a starting set from the stopped set based on the first parameters of the wind turbines in the first scheduling active power and the stopped set, and starting each wind turbine according to the starting set.

Optionally, when the first scheduled active power is smaller than the active power sum and the first scheduled active power is smaller than the dead zone sum, determining a shutdown set based on the first scheduled active power and first parameters of all wind turbines, and sequentially shutting down each wind turbine according to the shutdown set, including:

when the first dispatching active power is zero, all wind turbine generators are divided into a shutdown set;

and stopping the wind turbine generator according to the serial number sequence of the wind turbine generator corresponding to each element in the stopping set.

Optionally, when the first scheduled active power is smaller than the active power sum and the first scheduled active power is smaller than the dead zone sum, determining a shutdown set based on the first scheduled active power and first parameters of all wind turbines, and sequentially shutting down each wind turbine according to the shutdown set, including:

When the first scheduling active power is not zero, determining the active power of the wind turbine, a scheduling dead zone corresponding to the wind turbine and a low-power shaking threshold of the wind turbine for each wind turbine;

dividing the wind turbine into a first set when the active power of the wind turbine is smaller than the first sum of the scheduling dead zone of the wind turbine and the low power jitter threshold of the wind turbine;

determining a wind turbine to be shut down from the first set;

dividing each wind turbine to be shut down into a shut down set, and sequentially shutting down each wind turbine according to the shut down set.

Optionally, the step of determining the wind turbine to be shutdown from the first set includes:

determining a first number of wind turbines in the first set and a total number of wind turbines in a wind farm;

calculating the ratio of the first number to the total number;

when the ratio is greater than or equal to a preset shutdown control ratio, determining a second sum of active power of all the wind turbines;

calculating a difference between the first scheduled active power and the second sum;

calculating a second number of wind turbines needing to be shut down based on the active power and the difference value of each wind turbine;

And determining the wind turbine generator to be shut down from the first set based on the second number.

Optionally, the step of determining, based on the second number, wind turbines to be shutdown from the first set includes:

determining second parameters of each wind turbine generator in the first set;

based on the second parameters, calculating the total weight of each wind turbine in the first set;

sequencing all the wind turbines in each first set according to the corresponding total weight from high to low;

and acquiring the second number of wind turbines from the ordered first set to serve as wind turbines to be stopped.

Optionally, the step of calculating the total weight of each wind turbine in the first set based on the second parameter includes:

determining a first sub-parameter in the second parameter, wherein the first sub-parameter comprises a wind speed weight factor, a current wind speed, a power margin weight factor, a current blade angle, a weight factor from a last downtime length and a last downtime length of each wind turbine in the first set:

determining a second sub-parameter in the second parameter, wherein the second sub-parameter comprises the total number of faults of each wind turbine generator set in the first set, fault information and weight factors of each fault information;

And calculating the total weight of each wind turbine in the first set based on the first sub-parameter and the second sub-parameter.

Optionally, when the first scheduled active power is greater than the active power sum and the shutdown set is not empty, determining a startup set from the shutdown set based on a first parameter of the wind turbines in the first scheduled active power and the shutdown set, and starting each wind turbine according to the startup set, including:

comparing the first scheduled active power with the dead zone sum when the first scheduled active power is greater than the active power sum and the stopped set is not empty;

determining a third sum of the active power of all the wind turbines when the first scheduling active power is smaller than or equal to the dead zone sum;

calculating a difference value between the determined first scheduled active power and the third sum;

calculating a third number of wind turbines to be started based on the active power of each wind turbine and the difference between the first scheduled active power and the third sum;

determining wind turbines to be started from the stopped set based on the third quantity;

And forming a starting set based on each wind turbine to be started, and starting each wind turbine according to the starting set.

Optionally, the step of determining, based on the third number, a wind turbine to be started from the shutdown set includes:

determining a third parameter of each wind turbine in the stopped set, wherein the third parameter comprises a start-up wind speed influence factor and a current wind speed;

calculating the starting weight of each wind turbine in the stopped set based on the third parameter;

sequencing all the wind turbines in each stopped set according to the corresponding starting weight from high to low;

and acquiring the third number of wind turbines from the sequenced stopped sets to serve as wind turbines to be started.

Optionally, the method further comprises:

when the first scheduling active power is greater than the dead zone sum, all wind turbine generators in the stopped set are divided into a start-up set;

and starting the wind turbine generator according to the corresponding elements in the starting.

In a second aspect, an embodiment of the present application provides an electronic device, including a memory and a processor, where the memory stores a computer program, and the processor implements steps of a control method of the wind turbine generator set when executing the computer program.

The application has the following beneficial effects:

according to the method, a scheduling instruction is received, first scheduling active power corresponding to the scheduling instruction is determined, first parameters of all wind turbines are collected, active power sum of all wind turbines in an operating state in a wind power plant is determined, absolute value of difference value of the first scheduling active power and the active power sum is calculated, dead zone sum of all the wind turbines is determined and calculated when the absolute value is larger than or equal to a preset steady-state error threshold value of the whole plant, when the first scheduling active power is smaller than the active power sum and the first scheduling active power is smaller than the dead zone sum, a shutdown set is determined based on the first parameters of the first scheduling active power and all the wind turbines, all the wind turbines are sequentially shutdown according to the shutdown set, a startup set is determined from the shutdown set when the first scheduling active power is larger than the active power sum and the shutdown set is not empty, and the wind turbines are started according to the startup set. According to the method and the device, based on the scheduling instruction, each operation condition of the wind turbine generator is considered, namely, the first parameter is selected from the shutdown and startup sets, so that the wind turbine generator is guaranteed to be not frequently started and stopped under special conditions, old fans with some faults such as a clamping paddle do not participate in startup and stop scheduling under unnecessary conditions, and safe and stable operation of the wind turbine generator in the whole field is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic block diagram of an electronic device according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart of a control method of a wind turbine according to an embodiment of the present invention;

FIG. 3 is a second flow chart of a control method of a wind turbine generator according to an embodiment of the present invention;

FIG. 4 is a third flow chart of a control method of a wind turbine generator according to an embodiment of the present invention;

FIG. 5 is a flowchart of a control method of a wind turbine according to an embodiment of the present invention;

FIG. 6 is a flowchart of a control method of a wind turbine according to an embodiment of the present invention;

FIG. 7 is a flowchart illustrating a control method of a wind turbine according to an embodiment of the present invention;

Fig. 8 is a block diagram of a control device of a wind turbine generator according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The embodiment provides electronic equipment capable of controlling a wind turbine generator. In one possible implementation, the electronic device may be a user terminal, for example, the electronic device may be, but is not limited to, a server, a smart phone, a personal computer (PersonalComputer, PC), a tablet, a personal digital assistant (Personal Digital Assistant, PDA), a mobile internet device (Mobile Internet Device, MID), an image capture device, and the like.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the disclosure. The electronic device 100 may also include more or fewer components than shown in fig. 1, or have a different configuration than shown in fig. 1. The components shown in fig. 1 may be implemented in hardware, software, or a combination thereof.

The electronic device 100 includes a control device 110, a memory 120, and a processor 130 of a wind turbine generator.

The memory 120 and the processor 130 are electrically connected directly or indirectly to each other to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The control means 110 of the wind turbine generator set comprises at least one software functional module which may be stored in the memory 120 in the form of software or firmware (firmware) or cured in an Operating System (OS) of the electronic device 100. The processor 130 is configured to execute executable modules stored in the memory 120, such as software functional modules and computer programs included in the control device 110 of the wind turbine generator.

The Memory 120 may be, but is not limited to, a random access Memory (RandomAccess Memory, RAM), a Read Only Memory (ROM), a programmable Read Only Memory (Programmable Read-Only Memory, PROM), an erasable Read Only Memory (Erasable ProgrammableRead-Only Memory, EPROM), an electrically erasable Read Only Memory (Electric Erasable ProgrammableRead-Only Memory, EEPROM), etc. The memory 120 is configured to store a program, and the processor 130 executes the program after receiving an execution instruction.

Referring to fig. 2, fig. 2 is a flowchart of a control method of a wind turbine generator applied to the electronic device 100 of fig. 1, and the method includes various steps described in detail below.

S201: and receiving the scheduling instruction and determining the first scheduling active power corresponding to the scheduling instruction.

S202: and collecting first parameters of all the wind turbines.

The first parameters comprise active power, wind speed, blade speed, running state and historical fault information of the wind turbine generator.

S203: and determining the sum of the active power of each wind turbine generator set in the running state in the wind power plant.

S204: an absolute value of a difference between the first scheduled active power and the sum of the active powers is calculated.

S205: and when the absolute value is greater than or equal to a preset full-field steady-state error threshold value, determining the dead zone of each wind turbine generator set and calculating the dead zone sum of each dead zone.

S206: and when the first scheduling active power is smaller than the active power sum and the first scheduling active power is smaller than the dead zone sum, determining a shutdown set based on the first scheduling active power and first parameters of all the wind turbines, and sequentially shutting down the wind turbines according to the shutdown set.

S207: and when the first scheduling active power is larger than the active power sum and the stopped set is not empty, determining a starting set from the stopped set based on first parameters of the wind turbines in the first scheduling active power and the stopped set, and starting each wind turbine according to the starting set.

And receiving a scheduling instruction sent by the AGC (Automatic Generation Control) and an automatic power generation amount control system. And acquiring first parameters such as active power, reactive power, wind speed, blade angle, running state, historical fault information and the like of a wind turbine generator in the wind power plant.

And determining the active power sum of the wind turbine generator set in the running state in the wind power plant, calculating the absolute value of the difference value between the first scheduling active power and the active power sum, and determining a shutdown set or a startup set based on the comparison result of the first scheduling active power and the active power when the absolute value is greater than or equal to a preset full-field steady-state error threshold value, and shutting down or starting the wind turbine generator set based on the shutdown set.

When the absolute value is less than the preset full-field steady-state error threshold, then no subsequent steps of the present application need be performed.

The dead zone of each wind turbine is determined, wherein the dead zone refers to the condition that the power output of the motor is not changed under a specific load state, but a relatively stable level is maintained. And summing the dead zones of each wind turbine generator to obtain dead zone sums.

And comparing the first dispatching active power corresponding to the dispatching instruction with the active power sum of all the wind turbines in the running state, and when the first dispatching active power is smaller than the active power sum and the first dispatching active power is smaller than the dead zone sum, selecting the wind turbine which is preferably required to be shut down from all the wind turbines to shut down.

And when the first scheduling active power is larger than the active power sum and the stopped set is not empty, determining a starting set from the stopped set, and starting each wind turbine generator according to the starting set.

Specifically, a mode of stopping wind turbines needing stopping is selected from all wind turbines, each wind turbine can be analyzed through first dispatching active power corresponding to a dispatching instruction and first parameters of all wind turbines, a stopping set is determined from all wind turbines based on analysis results, and each wind turbine is stopped in sequence according to the serial number sequence of each wind turbine in the stopping set. Therefore, old fans with faults such as clamping paddles and the like are prevented from not participating in start-stop scheduling under unnecessary conditions, and safe and stable operation of the full-farm wind turbine is ensured.

Specifically, a mode of starting wind turbines needing to be started from a stopped set is selected, each wind turbine in the stopped set can be analyzed based on first scheduling active power and a first parameter of the wind turbines in the stopped set, the started set is determined from the wind turbines in the stopped set based on analysis results, and each wind turbine is started according to the started set. Therefore, old fans with faults such as clamping paddles and the like are prevented from not participating in start-stop scheduling under unnecessary conditions, and safe and stable operation of the full-farm wind turbine is ensured.

For the implementation manner of determining the shutdown set and sequentially shutting down each wind turbine generator according to the shutdown set, in one implementation manner, as shown in fig. 3, the method includes the following steps:

s206-1: and when the first scheduling active power is zero, all the wind turbine generators are classified into a shutdown set.

S206-2: and stopping the wind turbine generator according to the serial number sequence of the wind turbine generator corresponding to each element in the stopping set.

When the first scheduling active power corresponding to the scheduling instruction is 0, indicating that all the wind turbines need to be stopped, dividing all the wind turbines of the wind power plant into a stopping set, wherein the stopping set is the set with the highest stopping priority, and when the wind turbines are divided into the stopping set, stopping all the wind turbines in the stopping set in sequence according to the serial numbers of the wind turbines.

In another implementation manner of determining a shutdown set and sequentially shutting down each wind turbine according to the shutdown set, as shown in fig. 4, the method includes the following steps:

s206-3: and when the first scheduling active power is not zero, determining the active power of each wind turbine, a scheduling dead zone corresponding to the wind turbine and a low-power shaking threshold of the wind turbine aiming at each wind turbine.

S206-4: and dividing the wind turbine into a first set when the active power of the wind turbine is smaller than the first sum of the scheduling dead zone of the wind turbine and the low power jitter threshold of the wind turbine.

S206-5: determining a wind turbine to be shut down from the first set.

S206-6: dividing each wind turbine to be shut down into a shut down set, and sequentially shutting down each wind turbine according to the shut down set.

When the first scheduling active power is not zero, determining a scheduling dead zone of each wind turbine in an operating state in the wind power plant and a low power jitter threshold of the wind turbine, and calculating a first sum based on the following formula:

first sum=pd _i +Δp; wherein Pd is _i And (5) scheduling a dead zone for the ith wind turbine generator system, wherein deltap is a low-power jitter threshold of the wind turbine generator system.

It should be noted that wind turbines of the same model correspond to the same low power jitter threshold of the wind turbines.

And calculating a first sum of the scheduling dead zone of each wind turbine and a low-power jitter threshold value of the wind turbine, comparing the first sum of each wind turbine with the active power of the wind turbine, and dividing the numbers of wind turbines corresponding to the first sum being smaller than the active power of the wind turbines into a first set.

And dividing the wind turbine into a second set when the active power of the wind turbine is greater than or equal to the first sum of the scheduling dead zone of the wind turbine and the low power jitter threshold of the wind turbine.

The manner of determining a wind turbine to be shutdown from the first set may include:

determining a first number of wind turbines in a first set and a total number of wind turbines in a wind farm, calculating a ratio of the first number to the total number, determining a second sum of active power of all wind turbines when the ratio is greater than or equal to a preset shutdown control ratio, calculating a difference value between the first scheduled active power and the second sum, calculating a second number of wind turbines needing to be shutdown based on the active power and the difference value of each wind turbine, and determining the wind turbines to be shutdown from the first set based on the second number.

Note that the shutdown control ratio may be set to 0.5, 0.6, or the like, which is not particularly limited in the embodiment of the present application.

The method includes the steps of calculating a difference value of second sums of active powers of all wind turbines of the first scheduling power and the wind farm when the ratio of the first number of wind turbines of the first set to the total number of wind turbines in the wind farm is larger than or equal to a preset shutdown control ratio, and calculating the second number based on the difference value and the active powers of all wind turbines. If the difference between the first scheduling power and the second sum is 1500 and the active power of each wind turbine generator in the wind farm is 300, the determined second number is 1500/300=5, and the second number of wind turbine generator to be shut down is obtained from the first set, that is, 5 wind turbine generator to be shut down are determined from the first set.

Based on the second number, there are various implementations of determining the wind turbines to be shutdown from the first set, and in one implementation, as shown in fig. 5, the method includes the following steps:

s301: and determining a second parameter of each wind turbine generator in the first set.

S302: based on the second parameter, calculating the total weight of each wind turbine in the first set.

S303: and sequencing all the wind turbines in each first set according to the corresponding total weight from high to low.

S304: and obtaining a second number of wind turbines from the ordered first set to serve as wind turbines to be stopped.

For example, the second parameter of each wind turbine in the first set may be a parameter indicating an operation state of the wind turbine, the shutdown weight of each wind turbine, that is, the total weight of each wind turbine, may be determined based on the operation state of each wind turbine, the total weights of each wind turbine are ranked in order from top to bottom, and the second number of wind turbines ranked in front is obtained as wind turbines to be shutdown. The running state of each wind turbine in the first set is calculated based on the second parameters, the wind turbine with good running state is obtained to serve as the wind turbine to be shut down, and the wind turbines to be shut down are sequentially shut down according to the serial number sequence of the wind turbines.

Based on the second parameter, the implementation manner of calculating the total weight of each wind turbine in the first set may specifically be: determining a first subparameter in the second parameter, wherein the first subparameter comprises a wind speed weight factor, a current wind speed, a power margin weight factor, a current blade angle, a weight factor from the last downtime length and a last downtime length of each wind turbine in the first set, and determining a second subparameter in the second parameter, wherein the second subparameter comprises the total number of faults, fault information and weight factor of each fault information of each wind turbine in the first set, and calculating the total weight of each wind turbine in the first set based on the first subparameter and the second subparameter.

Illustratively, the total weight satisfies the following formula: wherein WTi is the ith wind turbine generator set in the first set, KV1 is the wind speed weight factor of each wind turbine generator set, and WV _i For the current wind speed of the ith typhoon electric machine group, KB1 is a power margin weight factor and WB _i For the current blade angle of the ith typhoon electric machine set, WR1 is a weight factor for the last downtime length of the machine set, ts _i For the last time of stopping the machine from the ith wind turbine, L is the total number of faults of the ith wind turbine, KE _j Errd for collecting weight factors of fault information of ith typhoon motor group _j And (5) the fault information of the ith typhoon electric machine group. KV1, KB1, WR1, KE _j The equal weight factors are optimized and solved through an intelligent optimization algorithm. And dividing the total weight of the wind turbines in the first set into a shutdown set according to the second number of wind turbines selected from high to low, and exiting the first set from the wind turbines entering the shutdown set.

The method for determining the total weight of each wind turbine generator in the first set may further be: determining a first sub-parameter in each second parameter, wherein the first sub-parameter comprises a wind speed weight factor, a current wind speed, a power margin weight factor, a current blade angle, a weight factor from the last downtime length and a last downtime length of each wind turbine in the first set. And determining a fault set in the second parameter, wherein the second fault set comprises fault information corresponding to each wind turbine in the first set, and calculating the total weight of each wind turbine based on the first sub-parameter and the fault set of each wind turbine in the first set.

The method comprises the following steps: the total weight satisfies the following formula: wherein WTi is the ith wind turbine generator set in the first set, KV1 is the wind speed weight factor of each wind turbine generator set, and WV _i For the current wind speed of the ith typhoon electric machine group, KB1 is a power margin weight factor and WB _i For the current blade angle of the ith typhoon electric machine set, WR1 is a weight factor for the last downtime length of the machine set, ts _i For the last time of stopping the wind turbine generator from the ith wind turbine generator, L is the total number of faults in the fault set, KE _j As a weight factor for the j-th fault in the fault set, errd _j Is the j-th fault information in the fault set. KV1, KB1, WR1, KE _j The equal weight factors are optimized and solved through an intelligent optimization algorithm. Dividing the wind turbine weights WT in the first set into shutdown sets according to a second number of wind turbines selected from high to low, and entering the shutdown setsAnd (3) the wind turbine generator exits the first set. And (3) dividing the total weight of the wind turbines in the first set into a shutdown set according to a second number of wind turbines selected from high to low, wherein the wind turbines entering the shutdown set exit the first set, the shutdown set sequentially shuts down according to the serial number sequence of the wind turbines, the shutdown set exits the shutdown set, and the shutdown wind turbines are divided into the shutdown set.

When the first scheduled active power is greater than the active power sum and the stopped set is not empty, determining that the implementation manner of the start-up set is multiple, and in one implementation manner, referring to fig. 6, the embodiment of the application further includes the following steps:

s207-1: when the first scheduled active power is greater than the active power sum and the stopped set is not empty, the first scheduled active power is compared to the dead zone sum.

S207-2: and determining a third sum of the active power of all the wind turbines when the first scheduled active power is less than or equal to the dead zone sum.

S207-3: a difference between the first scheduled active power and the third sum is determined by calculation.

S207-4: and calculating the third number of the wind turbines to be started based on the difference value between the active power of each wind turbine and the first scheduling active power and the third sum.

S207-5: and determining the wind turbine to be started from the stopped set based on the third quantity.

S207-6: and forming a starting set based on each wind turbine to be started, and starting each wind turbine according to the starting set.

And when the first scheduling active power is greater than the dead zone sum, all the wind turbine generators in the shutdown set are divided into a startup set, and startup is performed according to the wind turbine generators corresponding to each element in the startup set. The wind turbine generators in the starting set are taken as a batch of 3 wind turbine generators at a time interval T _m Starting up, preferably T _m ∈[3s,7s]And (3) exiting the started wind turbine from the start set and the stop set, and ending the flow.

The specific implementation manner of determining the startup set from the shutdown set may be:

when the first scheduling active power is smaller than the dead zone sum, determining a third sum of active power of all wind turbines, calculating and determining a difference value between the first scheduling active power and the third sum, calculating a third number of wind turbines needing to be started based on the difference value between the active power of each wind turbine and the first scheduling active power and the third sum, determining wind turbines to be started from a shutdown set based on the third number, forming a startup set based on each wind turbine to be started, and starting each wind turbine sequentially according to the startup set.

The method includes the steps of judging a difference value of a third sum of first dispatching active power corresponding to a dispatching instruction and full-field active power of a wind farm, comparing and analyzing current active power states of all wind turbine generator sets in the wind farm, calculating the third number of wind turbine generator sets needing to be started, wherein when the third number is 0, starting is not needed, and when the third number is not 0, determining that the wind turbine generator sets to be started form a start set from a stopped set. The wind turbine generator in the starting set can be divided into 3 groups according to time intervals T _m Starting up, preferably T _n ∈[3s,7s]And exiting the started fan from the startup set and the shutdown set.

Based on the third number, there are various implementations of determining the wind turbines to be started from the shutdown set, and in one implementation, as shown in fig. 7, the method includes the following steps:

s401: and determining a third parameter of each wind turbine in the shutdown set.

Wherein the third parameter includes a start-up wind speed influencing factor and a current wind speed.

S402: and calculating the starting weight of each wind turbine in the stopped set based on the third parameter.

S403: and sequencing all the wind turbines in all the shutdown sets according to the corresponding startup weight from high to low.

S404: and obtaining a third number of wind turbines from the sequenced shutdown set to serve as wind turbines to be started.

Illustratively, a start right is determined for each wind turbine generator in the shutdown setRestarting the wind turbine generator, wherein the starting weight score is mainly influenced by the wind speed, and the starting weight of each wind turbine generator is calculated through the following formula: WR (WR) _i ＝RV1*WV _i RV1 is the influence factor of the start-up wind speed, RV1 can be set to be 1, WV _i Is the current wind speed. WR is provided with _i And discharging a third number of wind turbines to be started from large to small, and placing the wind turbines into the starting set.

Referring to fig. 8, an embodiment of the present application further provides a control device 110 applied to a wind turbine generator set of the electronic device 100 shown in fig. 1, where the control device 110 of the wind turbine generator set includes:

a receiving module 111, configured to receive a scheduling instruction, and determine a first scheduling active power corresponding to the scheduling instruction;

the collection module 112 is configured to collect first parameters of all wind turbines, where the first parameters include active power, wind speed, blade speed, running state and historical fault information of the wind turbines;

the determining module 113 is used for determining the sum of the active power of each wind turbine generator set in the running state in the wind power plant;

a calculation module 114, configured to calculate an absolute value of a difference between the first scheduled active power and the active power sum;

the determining module 113 is further configured to determine a dead zone of each wind turbine generator set and calculate a dead zone sum of each dead zone when the absolute value is greater than or equal to a preset full-farm steady-state error threshold; when the first scheduling active power is smaller than the active power sum and the first scheduling active power is smaller than the dead zone sum, determining a shutdown set based on the first scheduling active power and first parameters of all wind turbines, and sequentially shutting down all the wind turbines according to the shutdown set; and when the first scheduling active power is larger than the active power sum and the stopped set is not empty, determining a starting set from the stopped set based on the first parameters of the wind turbines in the first scheduling active power and the stopped set, and starting each wind turbine according to the starting set.

The present application also provides an electronic device 100, the electronic device 100 comprising a processor 130 and a memory 120. The memory 120 stores computer executable instructions that, when executed by the processor 130, implement a method of controlling the wind turbine.

The embodiment of the application also provides a computer readable storage medium, and the storage medium stores a computer program, and when the computer program is executed by the processor 130, the control method of the wind turbine generator is realized.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners as well. The apparatus embodiments described above are merely illustrative, for example, flow diagrams and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

In addition, the functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part. The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely various embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. The control method of the wind turbine generator is characterized by comprising the following steps:

receiving a scheduling instruction and determining a first scheduling active power corresponding to the scheduling instruction;

collecting first parameters of all wind turbines, wherein the first parameters comprise active power, wind speed, blade speed, running state and historical fault information of the wind turbines;

determining the sum of active power of all wind turbines in the wind power plant in an operation state;

calculating an absolute value of a difference between the first scheduled active power and the active power sum;

when the absolute value is larger than or equal to a preset full-field steady-state error threshold value, determining dead zones of the wind turbine generators and calculating dead zone sums of the dead zones;

when the first scheduling active power is smaller than the active power sum and the first scheduling active power is smaller than the dead zone sum, determining a shutdown set based on the first scheduling active power and first parameters of all wind turbines, and sequentially shutting down all the wind turbines according to the shutdown set;

And when the first scheduling active power is larger than the active power sum and the stopped set is not empty, determining a starting set from the stopped set based on the first parameters of the wind turbines in the first scheduling active power and the stopped set, and starting each wind turbine according to the starting set.

2. The method of claim 1, wherein when the first scheduled active power is less than the active power sum and the first scheduled active power is less than the dead zone sum, determining a shutdown set based on the first scheduled active power and a first parameter of all wind turbines, and sequentially shutting down each wind turbine in turn according to the shutdown set, comprises:

when the first dispatching active power is zero, all wind turbine generators are divided into a shutdown set;

and stopping the wind turbine generator according to the serial number sequence of the wind turbine generator corresponding to each element in the stopping set.

3. The method of claim 1, wherein when the first scheduled active power is less than the active power sum and the first scheduled active power is less than the dead zone sum, determining a shutdown set based on the first scheduled active power and a first parameter of all wind turbines, and sequentially shutting down each wind turbine in turn according to the shutdown set, comprises:

When the first scheduling active power is not zero, determining the active power of the wind turbine, a scheduling dead zone corresponding to the wind turbine and a low-power shaking threshold of the wind turbine for each wind turbine;

dividing the wind turbine into a first set when the active power of the wind turbine is smaller than the first sum of the scheduling dead zone of the wind turbine and the low power jitter threshold of the wind turbine;

determining a wind turbine to be shut down from the first set;

dividing each wind turbine to be shut down into a shut down set, and sequentially shutting down each wind turbine according to the shut down set.

4. A method according to claim 3, wherein the step of determining a wind turbine to be shutdown from the first set comprises:

determining a first number of wind turbines in the first set and a total number of wind turbines in a wind farm;

calculating the ratio of the first number to the total number;

when the ratio is greater than or equal to a preset shutdown control ratio, determining a second sum of active power of all the wind turbines;

calculating a difference between the first scheduled active power and the second sum;

Calculating a second number of wind turbines needing to be shut down based on the active power and the difference value of each wind turbine;

and determining the wind turbine generator to be shut down from the first set based on the second number.

5. The method of claim 4, wherein the step of determining wind turbines to be shutdown from the first set based on the second number comprises:

determining second parameters of each wind turbine generator in the first set;

based on the second parameters, calculating the total weight of each wind turbine in the first set;

sequencing all the wind turbines in each first set according to the corresponding total weight from high to low;

and acquiring the second number of wind turbines from the ordered first set to serve as wind turbines to be stopped.

6. The method of claim 5, wherein the step of calculating the total weight of each wind turbine in the first set based on the second parameter comprises:

determining a first sub-parameter in the second parameter, wherein the first sub-parameter comprises a wind speed weight factor, a current wind speed, a power margin weight factor, a current blade angle, a weight factor from a last downtime length and a last downtime length of each wind turbine in the first set:

Determining a second sub-parameter in the second parameter, wherein the second sub-parameter comprises the total number of faults of each wind turbine generator set in the first set, fault information and weight factors of each fault information;

and calculating the total weight of each wind turbine in the first set based on the first sub-parameter and the second sub-parameter.

7. The method of claim 1, wherein the step of determining a start-up set from the shut-down set based on a first parameter of a wind turbine in the first scheduled active power and the shut-down set and starting each wind turbine in the start-up set when the first scheduled active power is greater than the active power sum and the shut-down set is not empty comprises:

comparing the first scheduled active power with the dead zone sum when the first scheduled active power is greater than the active power sum and the stopped set is not empty;

determining a third sum of the active power of all the wind turbines when the first scheduling active power is smaller than or equal to the dead zone sum;

calculating a difference value between the determined first scheduled active power and the third sum;

Calculating a third number of wind turbines to be started based on the active power of each wind turbine and the difference between the first scheduled active power and the third sum;

determining wind turbines to be started from the stopped set based on the third quantity;

and forming a starting set based on each wind turbine to be started, and starting each wind turbine according to the starting set.

8. The method of claim 7, wherein the step of determining wind turbines to be started from the shutdown set based on the third number comprises:

determining a third parameter of each wind turbine in the stopped set, wherein the third parameter comprises a start-up wind speed influence factor and a current wind speed;

calculating the starting weight of each wind turbine in the stopped set based on the third parameter;

sequencing all the wind turbines in each stopped set according to the corresponding starting weight from high to low;

and acquiring the third number of wind turbines from the sequenced stopped sets to serve as wind turbines to be started.

9. The method of claim 7, wherein the method further comprises:

When the first scheduling active power is greater than the dead zone sum, all wind turbine generators in the stopped set are divided into a start-up set;

and starting the wind turbine generator according to the corresponding elements in the starting set.

10. An electronic device comprising a memory and a processor, the memory storing a computer program, the processor implementing the steps of the method of any one of claims 1-9 when the computer program is executed.