CN116777162A

CN116777162A - Instruction distribution method, apparatus, computer device and storage medium

Info

Publication number: CN116777162A
Application number: CN202310751546.XA
Authority: CN
Inventors: 鲁宗相; 乔颖; 张仕钰; 范辉; 王亚军; 李晓明; 于腾凯; 崔童飞; 张蕊
Original assignee: Tsinghua University; State Grid Corp of China SGCC; Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Current assignee: Tsinghua University; State Grid Corp of China SGCC; Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2023-09-19

Abstract

The application relates to an instruction distribution method, an instruction distribution device, computer equipment and a storage medium. The method comprises the following steps: when a first active power instruction sent by a dispatching center is received, acquiring original data of each wind turbine generator; the original data comprise wind speed data, pitch angle data and rotating speed data; determining a second active power instruction according to the original data of each wind turbine generator and the first active power instruction; and sending the second active power instruction to each wind turbine generator. According to the method, the first active power instruction sent by the dispatching center and the original data of each wind turbine generator are counted, the second active power instruction distribution of each wind turbine generator in the station is quantitatively calculated, so that the first active power instruction sent by the dispatching center by the wind power station is more accurately distributed to each wind turbine generator in the wind power station, the performance index of the wind power station responding to the first active power instruction sent by the dispatching center is improved, and the frequency safety of a power grid is further improved.

Description

Instruction distribution method, apparatus, computer device and storage medium

Technical Field

The present application relates to the field of power system control technologies, and in particular, to a method and apparatus for distributing instructions, a computer device, and a storage medium.

Background

In order to cope with the frequency fluctuation and scheduling challenges of a high-proportion wind power energy system, the active power instructions of the station level need to be distributed to the adjustment performance of the wind turbine, namely the active power instructions sent by the wind power dispatching center need to be distributed to each set in the field according to a certain rule by the wind power station.

At present, the existing allocation strategy mainly comprises average allocation and weight allocation according to wind speed, wherein the average allocation is to allocate an active instruction according to the number of wind turbines in a wind power plant, and the weight allocation is to allocate the weight according to the wind speed of the environment where the wind turbines are located.

However, the above allocation strategy has a problem of low accuracy.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a method, an apparatus, a computer device, and a storage medium for distributing instructions capable of improving the accuracy of active power instruction distribution.

In a first aspect, the present application provides a method of assigning instructions. The method comprises the following steps:

when a first active power instruction sent by a dispatching center is received, acquiring original data of each wind turbine generator; the original data comprise wind speed data, pitch angle data and rotating speed data;

Determining a second active power instruction according to the original data of each wind turbine generator and the first active power instruction;

and sending the second active power instruction to each wind turbine generator.

In one embodiment, determining the second active power instruction according to the original data of each wind turbine generator and the first active power instruction includes:

according to the original data of each wind turbine and a preset evaluation algorithm, evaluating the performance of each wind turbine to obtain an evaluation result of each wind turbine;

and determining a second active power instruction according to the evaluation result of each wind turbine generator and the first active power instruction.

In one embodiment, according to original data and a preset evaluation algorithm of each wind turbine, performance of each wind turbine is evaluated to obtain an evaluation result of each wind turbine, including:

carrying out standardized processing on the original data of each wind turbine to obtain standardized data of each wind turbine;

according to the standardized data of each wind turbine, corresponding weights are distributed to each wind turbine, and the weights of each wind turbine are obtained;

and determining an evaluation result of each wind turbine according to the weight of each wind turbine and the standardized data of each wind turbine.

In one embodiment, according to standardized data of each wind turbine, corresponding weights are allocated to each wind turbine to obtain weights of each wind turbine, including:

carrying out variability processing on the standardized data of each wind turbine to obtain variability results;

carrying out conflict processing on the standardized data of each wind turbine generator to obtain a conflict result;

and (5) carrying out weight calculation on the variability result and the conflict result to obtain the weight of each wind turbine.

In one embodiment, the normalizing processing is performed on the original data of each wind turbine to obtain normalized data of each wind turbine, including:

carrying out standardized processing on the rotational speed data and the pitch angle data of each wind turbine according to a first preset rule, and determining first standardized data;

carrying out standardization processing on wind speed data of each wind turbine according to a second preset rule, and determining second standardization data;

and obtaining the standardized data of each wind turbine according to the first standardized data and the second standardized data.

In one embodiment, determining the second active power instruction according to the evaluation result of each wind turbine generator and the first active power instruction includes:

Performing difference processing on the target power indicated by the first active power instruction and the actual power of the current wind power plant to obtain difference power;

and determining a second active power instruction according to the difference power and the evaluation result of each wind turbine generator.

In one embodiment, the method further comprises:

screening the original data of each wind turbine according to preset conditions to obtain the original data of a plurality of wind turbines meeting the requirements;

converting the original data of a plurality of wind turbines meeting the requirements into an original data matrix corresponding to the plurality of wind turbines;

according to the original data of each wind turbine generator and the first active power instruction, determining a second active power instruction comprises the following steps:

and determining a second active power instruction according to the original data matrix and the first active power instruction.

In a second aspect, the application further provides a device for distributing the instructions. The device comprises:

the acquisition module is used for acquiring the original data of each wind turbine generator when receiving a first active power instruction sent by the dispatching center; the original data comprise wind speed data, pitch angle data and rotating speed data;

the determining module is used for determining a second active power instruction according to the original data of each wind turbine generator and the first active power instruction;

And the sending module is used for sending the second active power instruction to each wind turbine generator.

In one embodiment, the determining module includes:

the evaluation unit is specifically used for evaluating the performance of each wind turbine according to the original data of each wind turbine and a preset evaluation algorithm to obtain an evaluation result of each wind turbine;

the determining unit is specifically configured to determine a second active power instruction according to the evaluation result of each wind turbine generator and the first active power instruction.

In one embodiment, the evaluation unit includes:

the processing subunit is specifically used for carrying out standardized processing on the original data of each wind turbine generator set to obtain standardized data of each wind turbine generator set;

the distribution subunit is specifically configured to distribute corresponding weights to each wind turbine according to the standardized data of each wind turbine, so as to obtain weights of each wind turbine;

the first determination subunit is specifically configured to determine an evaluation result of each wind turbine generator according to the weight of each wind turbine generator and the standardized data of each wind turbine generator.

In one embodiment, the allocation subunit is specifically configured to perform variability processing on the standardized data of each wind turbine to obtain a variability result; carrying out conflict processing on the standardized data of each wind turbine generator to obtain a conflict result; and (5) carrying out weight calculation on the variability result and the conflict result to obtain the weight of each wind turbine.

In one embodiment, the processing subunit is specifically configured to perform standardization processing on the rotational speed data and the pitch angle data of each wind turbine unit according to a first preset rule, and determine first standardization data; carrying out standardization processing on wind speed data of each wind turbine according to a second preset rule, and determining second standardization data; and obtaining the standardized data of each wind turbine according to the first standardized data and the second standardized data.

In one embodiment, the determining unit includes:

the difference processing subunit is specifically configured to perform difference processing on the target power indicated by the first active power instruction and the actual power of the current wind farm to obtain a difference power;

the second determining subunit is specifically configured to determine a second active power instruction according to the difference power and the evaluation result of each wind turbine generator set.

In one embodiment, the apparatus further includes:

the screening module is used for screening the original data of each wind turbine according to preset conditions to obtain the original data of a plurality of wind turbines meeting the requirements;

the conversion module is used for converting the original data of the plurality of wind turbines meeting the requirements into an original data matrix corresponding to the plurality of wind turbines;

And the determining module is used for determining a second active power instruction according to the original data matrix and the first active power instruction.

In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor which when executing the computer program performs the steps of:

and sending the second active power instruction to each wind turbine generator.

In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:

and sending the second active power instruction to each wind turbine generator.

In a fifth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of:

and sending the second active power instruction to each wind turbine generator.

The method, the device, the computer equipment and the storage medium for distributing the instructions. The method comprises the following steps: when a first active power instruction sent by a dispatching center is received, acquiring original data of each wind turbine generator; the original data comprise wind speed data, pitch angle data and rotating speed data; determining a second active power instruction according to the original data of each wind turbine generator and the first active power instruction; and sending the second active power instruction to each wind turbine generator. According to the method, the first active power instruction sent by the dispatching center and the original data of each wind turbine generator are counted, the second active power instruction distribution of each wind turbine generator in the station is quantitatively calculated, so that the first active power instruction sent by the dispatching center by the wind power station is more accurately distributed to each wind turbine generator in the wind power station, the performance index of the wind power station responding to the first active power instruction sent by the dispatching center is improved, and the frequency safety of a power grid is further improved.

Drawings

FIG. 1 is an application environment diagram of a method of allocation of instructions in one embodiment;

FIG. 2 is a flow diagram of a method of allocation of instructions in one embodiment;

FIG. 3 is a diagram of a scheduled active power instruction received by a station in one embodiment;

FIG. 4 is a flowchart illustrating the step S202 in the embodiment of FIG. 2;

FIG. 5 is a flowchart illustrating the step S301 in the embodiment of FIG. 4;

FIG. 6 is a flowchart illustrating the step S401 in the embodiment of FIG. 5;

FIG. 7 is a flowchart illustrating the step S402 in the embodiment of FIG. 5;

FIG. 8 is a flowchart illustrating the step S302 in the embodiment of FIG. 4;

FIG. 9 is a flow chart of a method of assigning instructions in another embodiment;

FIG. 10 is a flow chart of a method of assigning instructions in another embodiment;

FIG. 11 is a block diagram of the structure of a dispensing device of instructions in one embodiment;

FIG. 12 is a block diagram of the structure of a dispensing device of instructions in one embodiment;

FIG. 13 is a block diagram of the structure of a dispensing device of instructions in one embodiment;

fig. 14 is an internal structural diagram of a computer device in one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

In order to cope with the frequency fluctuation and scheduling challenges of a high-proportion wind power source power system, the active power instructions of a station level need to be reasonably distributed for the adjustment performance of wind turbine generators, namely, the active power instructions sent by a wind power scheduling center need to be distributed to each generator set in a field by a wind power station according to a certain rule so as to improve the frequency safety of a power grid.

In each wind turbine generator in the wind power plant, an automatic power generation control (Automatic Generation Control, AGC) substation of the wind power plant bears the instructions of a wind power dispatching center and tracks the active power instructions sent by the wind power dispatching center, and centralized control in the wind power plant is responsible for distributing the instructions of the wind power dispatching center to each turbine generator in the wind power plant according to a certain rule. At present, the domestic existing allocation strategy mainly comprises average allocation and weight allocation according to wind speed, wherein the average allocation mode is used for allocating active power instructions according to the number of wind turbines in a wind power plant, and the weight allocation is carried out according to the wind speed allocation mode, namely according to the wind speed of the environment where the turbines are located.

However, because the natural resources of the external environment where each unit is located in the wind power plant are different, the internal operation states are different, the adjustment endowment difference exists, and meanwhile, the mechanism model of the wind power unit is complex, the adjustment performance of each unit is difficult to quantify. That is, the above-described allocation method has a problem of low accuracy in allocation of the active power command. The present application aims to solve this problem.

After the background technology of the instruction distribution method provided by the embodiment of the present application is described, an implementation environment related to the instruction distribution method provided by the embodiment of the present application will be briefly described below. The instruction distribution method provided by the embodiment of the application can be applied to an application environment shown in fig. 1. As shown in fig. 1, the application environment may include a dispatching center 101, a wind farm station 102 and a wind turbine 103, where an input end of the wind farm station 102 is connected to the dispatching center 101, and an output end of the wind farm station 102 is connected to the wind turbine 103. The scheduling center 101 is configured to send a scheduling instruction to the wind farm station 102, so as to instruct the wind farm station 102 to adjust the load of the wind turbine 103 to a value indicated by the scheduling instruction according to the scheduling instruction, for example, the scheduling center 101 sends a scheduling instruction for 30% load shedding to the wind farm station 102, and after the wind farm station 102 receives the scheduling instruction, the scheduling instruction is allocated to the wind turbine 103 according to a certain rule. The wind farm 102 is configured to receive a scheduling instruction of the scheduling center 101, and distribute the scheduling instruction based on a certain rule, and send the scheduling instruction to each wind turbine 103, so as to instruct each wind turbine 103 to execute a related power load according to the distributed instruction.

After the application scenario of the instruction allocation method provided by the embodiment of the present application is described, the instruction allocation method described in the present application is described in detail below.

In one embodiment, as shown in fig. 2, a method for distributing instructions is provided, which is illustrated by taking the method applied to the station 102 in fig. 1 as an example, and includes the following steps:

s201, when a first active power instruction sent by a dispatching center is received, acquiring original data of each wind turbine generator.

The first active power instruction is an instruction sent by the dispatching center to the station to instruct the wind farm to unload or increase load, for example, as shown in fig. 3, the first active power instruction sent by the dispatching center can be seen from fig. 3, when 100s, the dispatching center sends an instruction for requesting 30% of load reduction of the wind farm to the station, and when 160s, the dispatching center sends an instruction for requesting 50% of load reduction of the wind farm to the station.

The original data comprise wind speed data, pitch angle data and rotating speed data, and the wind speed data, the pitch angle data and the rotating speed data can be measured in real time according to sensors arranged on wind power blades.

In the embodiment of the application, when the scheduling center receives a first active power instruction which is sent by the superior command center and needs to load or unload the wind turbine generator, the scheduling center forwards the first active power instruction to the station so that the station receives the first active power instruction, and after the station receives the first active power instruction, the station sends an acquisition instruction to each wind turbine generator in the station so as to acquire wind speed data, pitch angle data and rotating speed data of each wind turbine generator.

S202, determining a second active power instruction according to the original data of each wind turbine generator and the first active power instruction.

The second active power instruction is an instruction obtained by performing data processing on the first active power instruction and the original data of each wind turbine generator by the station.

In the embodiment of the present application, after the original data of each wind turbine is obtained in step S201 and the first active power instruction sent by the dispatching center is received, the station performs data processing on the original data and the first active power instruction of each wind turbine, so as to determine the second active power instruction of each wind turbine.

And S203, sending a second active power instruction to each wind turbine generator.

In the embodiment of the present application, after the second active power instruction of each wind turbine is obtained in step S202, the station may send the second active power instruction of each wind turbine to the corresponding wind turbine, so as to instruct each wind turbine to execute the load shedding or loading instruction indicated by the second active power instruction.

According to the instruction distribution method provided by the embodiment of the application, when a first active power instruction sent by a dispatching center is received, the original data of each wind turbine generator is obtained; the original data comprise wind speed data, pitch angle data and rotating speed data; determining a second active power instruction according to the original data of each wind turbine generator and the first active power instruction; and sending the second active power instruction to each wind turbine generator. According to the method, the first active power instruction sent by the dispatching center and the original data of each wind turbine generator are counted, the second active power instruction distribution of each wind turbine generator in the station is quantitatively calculated, so that the first active power instruction sent by the dispatching center by the wind power station is more accurately distributed to each wind turbine generator in the wind power station, the performance index of the wind power station responding to the first active power instruction sent by the dispatching center is improved, and the frequency safety of a power grid is further improved.

On the basis of the embodiment shown in fig. 2, a process of determining a second active power instruction according to the original data and the first active power instruction of each wind turbine may be described, as shown in fig. 4, step S202 "determining the second active power instruction according to the original data and the first active power instruction of each wind turbine", including:

s301, evaluating the performance of each wind turbine according to the original data of each wind turbine and a preset evaluation algorithm to obtain an evaluation result of each wind turbine.

The preset evaluation algorithm can evaluate a certain feature of the original data to obtain an evaluation result of the original data, for example, the preset evaluation algorithm can evaluate the damage performance of each wind turbine based on the original data of each wind turbine to obtain a damage performance result of each wind turbine; the preset evaluation algorithm comprises a Critic algorithm, a weight evaluation algorithm and the like.

In the embodiment of the application, a server for processing various original data is arranged in a station, and after the original data of each wind turbine are obtained, the server arranged in the station evaluates the performance of each wind turbine according to the original data of each wind turbine and a preset evaluation algorithm to obtain an evaluation result of each wind turbine; optionally, after the raw data of each wind turbine are obtained, a server arranged in the station calculates weight evaluation values of the raw data of each wind turbine according to the raw data of each wind turbine and a preset weight evaluation algorithm, and then respectively adds up and calculates the weight evaluation values of the raw data of each wind turbine, so as to obtain evaluation results of each wind turbine.

S302, determining a second active power instruction according to the evaluation result of each wind turbine generator and the first active power instruction.

In the embodiment of the application, after the evaluation results and the first active power instructions of each wind turbine are obtained, a server arranged in a station carries out numerical operation on the evaluation results and the first active power instructions of each wind turbine, and determines the second active power instructions of each wind turbine; optionally, the evaluation results of the wind turbines are accumulated and calculated to obtain a total evaluation result, then the ratio operation is performed on the first active power instruction and the total evaluation result to obtain a ratio result, and then the product operation is performed on the evaluation result of each wind turbine and the ratio result respectively to obtain the second active power of each wind turbine.

According to the instruction distribution method provided by the embodiment of the application, the evaluation result of each wind turbine is determined based on the original data of each wind turbine and the preset evaluation algorithm, and the second active power instruction of each wind turbine is determined based on the evaluation result of each wind turbine and the first active power instruction.

On the basis of the embodiment shown in fig. 4, the process of evaluating the performance of each wind turbine according to the original data and the preset evaluation algorithm of each wind turbine to obtain the evaluation result of each wind turbine may be described, as shown in fig. 5, step S301 "evaluate the performance of each wind turbine according to the original data and the preset evaluation algorithm of each wind turbine to obtain the evaluation result of each wind turbine", including:

s401, carrying out standardized processing on the original data of each wind turbine to obtain standardized data of each wind turbine.

In the embodiment of the application, after the original data of each wind turbine are obtained, the server arranged in the station performs standardized processing on the original data of each wind turbine based on the preset standardized processing rule, so as to obtain the standardized data of each wind turbine.

The following describes a method for performing standardization processing on the original data of each wind turbine according to the standardized data of each wind turbine to obtain the standardized data of each wind turbine:

optionally, on the basis of the embodiment shown in fig. 5, the process of normalizing the raw data of each wind turbine to obtain normalized data of each wind turbine is described, as shown in fig. 6, step S401 "normalize the raw data of each wind turbine to obtain normalized data of each wind turbine", including:

S4011, carrying out standardization processing on the rotational speed data and the pitch angle data of each wind turbine generator according to a first preset rule, and determining first standardization data.

In the embodiment of the application, after the rotational speed data and the pitch angle data of each wind turbine are obtained, a server arranged in a station performs standardized processing on the rotational speed data and the pitch angle data of each wind turbine according to a first preset rule to obtain first standardized data of the rotational speed data and the pitch angle data of each wind turbine. Optionally, the rotation speed data and the pitch angle data in the raw data of each wind turbine may be normalized according to the following formula (1):

wherein x' _ij The value, max (x _j ) The maximum value, x, in the rotational speed data or pitch angle data of each wind turbine generator set _ij Is the original data value of the rotational speed data or pitch angle data of each wind turbine, min (x _j ) The minimum value in the rotational speed data or the pitch angle data of each wind turbine generator is used as the minimum value.

S4012, carrying out standardization processing on the wind speed data of each wind turbine generator according to a second preset rule, and determining second standardization data.

In the embodiment of the application, after the wind speed data of each wind turbine is obtained, the server arranged in the station performs standardization processing on the wind speed data of each wind turbine according to a second preset rule to obtain second standardization data of the wind speed data of each wind turbine. Optionally, the wind speed data in the raw data of each wind turbine generator may be normalized according to the following formula (2):

wherein x' _ij For the values normalized by the wind speed data of each wind turbine, max (x _j ) For the maximum value, x in the wind speed data of each wind turbine generator set _ij For the original data value of wind speed data of each wind turbine generator, min (x _j ) And the minimum value in the wind speed data of each wind turbine generator is obtained.

S4013, obtaining the standardized data of each wind turbine generator according to the first standardized data and the second standardized data.

In the embodiment of the application, after the first standardized data of the rotational speed data and the pitch angle data of each wind turbine and the second standardized data of the wind speed data are obtained, the first standardized data and the second standardized data are combined and operated to obtain the standardized data of the rotational speed data, the pitch angle data and the wind speed data of each wind turbine.

S402, distributing corresponding weights to the wind turbines according to the standardized data of the wind turbines to obtain the weights of the wind turbines.

In the embodiment of the application, after the standardized data of each wind turbine are obtained, a server arranged in a station allocates corresponding weights to the wind speed data, the rotating speed data and the pitch angle data of each wind turbine according to the standardized data of each wind turbine and weights corresponding to preset wind speed data, rotating speed data and pitch angle data, and performs accumulation and operation on the wind speed data, the rotating speed data and the pitch angle data of each wind turbine to obtain the weights of each wind turbine.

The following describes a method for distributing corresponding weights to each wind turbine according to standardized data of each wind turbine to obtain the weights of each wind turbine:

optionally, on the basis of the embodiment shown in fig. 5, a process of assigning a corresponding weight to each wind turbine generator according to the standardized data of each wind turbine generator to obtain a weight of each wind turbine generator may be described, as shown in fig. 7, step S402 "assign a corresponding weight to each wind turbine generator according to the standardized data of each wind turbine generator to obtain a weight of each wind turbine generator", including:

S4021, performing variability processing on the standardized data of each wind turbine to obtain variability results.

In the embodiment of the application, after the standardized data of each wind turbine are obtained, a server arranged in a station performs variability processing on the standardized data of each wind turbine based on a preset variability processing rule, so as to obtain a variability result; optionally, the standardized data of each wind turbine generator may be subjected to variability processing according to the following formula (3):

wherein, the liquid crystal display device comprises a liquid crystal display device,for the average value of wind speed, rotating speed or pitch angle standardized data in each wind turbine, n is the number of wind turbines in the station, and x '' _ij S is a value after wind speed data of each wind turbine generator are standardized _j And (3) normalizing the variability result of the data of the wind speed, the rotating speed or the pitch angle in each wind turbine, wherein p is 3.

S4022, carrying out conflict processing on the standardized data of each wind turbine generator to obtain a conflict result.

In the embodiment of the application, after the standardized data of each wind turbine are obtained, a server arranged in a station performs conflict processing on the standardized data of each wind turbine based on a preset conflict processing rule, so as to obtain a conflict result; optionally, the standardized data of each wind turbine generator may be subjected to conflict processing according to the following formula (4):

Wherein r is _xy The method is characterized in that the method comprises the steps of obtaining the intermediate value of wind speed data or rotation speed data of each wind turbine, or the intermediate value of wind speed data or pitch angle standardized data of each wind turbine, or the intermediate value of rotation speed data or pitch angle standardized data of each wind turbine, wherein n is the number of wind turbines in a station, and x is the number of wind turbines in the station _i Is wind speed data of any wind turbine, rotational speed data of any wind turbine, or pitch angle data of any wind turbine,y is the average value of wind speed data of each wind turbine, the average value of rotating speed data of each wind turbine, or the average value of pitch angle data of each wind turbine _i Is equal to x _i Wind speed data of any wind turbine, rotation speed data of any wind turbine, or pitch angle data of any wind turbine, which are different, are +.>Is equal to x _i An average value of wind speed data of different wind turbines, an average value of rotational speed data of wind turbines, or an average value of pitch angle data of wind turbines, A _j Conflict result of wind speed, rotating speed or pitch angle standardized data in each wind turbine generator system, r _ij R is _xy The value of x=i, y=j, p being 3.

And S4023, carrying out weight calculation on the variability result and the conflict result to obtain the weight of each wind turbine generator. In the embodiment of the application, after the variability result and the conflict result are obtained, a server arranged in a station calculates weights of the variability result and the conflict result based on a preset weight calculation rule, so as to obtain weights of all wind turbines; alternatively, the weight calculation may be performed on each variability result and conflict result according to the following formula (5):

Wherein C is _j The standard data of the wind speed, the rotating speed or the pitch angle in each wind turbine generator are used for indicating the information quantity S _j A is a variability result of standardized data of wind speed, rotating speed or pitch angle in each wind turbine _j For the conflict result of the standardized data of wind speed, rotating speed or pitch angle in each wind turbine, p is 3,W _j And the weight of wind speed data, rotating speed data or pitch angle data in each wind turbine generator set is given.

S403, determining an evaluation result of each wind turbine according to the weight of each wind turbine and the standardized data of each wind turbine.

In the embodiment of the application, after the weight of each wind turbine and the standardized data of each wind turbine are obtained, the server arranged in the station can determine the evaluation result of each wind turbine according to the weight of each wind turbine and the standardized data of each wind turbine. Optionally, the weight of each wind turbine and the standardized data of each wind turbine may be calculated according to the following formula (6):

wherein S is _i For the evaluation result of each wind turbine generator, p is 3,W _j The weight of wind speed data, rotating speed data or pitch angle data in each wind turbine generator is x' _ij And (3) the numerical value after the wind speed data of each wind turbine generator are standardized, and n is the number of the wind turbine generators in the station.

According to the instruction distribution method provided by the embodiment of the application, the distribution corresponding weight of each wind turbine is determined based on the standardized raw data of the wind turbines, and the evaluation result of each wind turbine is determined based on the weight of each wind turbine and the standardized data of each wind turbine.

On the basis of the embodiment shown in fig. 4, a process of determining the second active power instruction according to the evaluation result and the first active power instruction of each wind turbine may be described, as shown in fig. 8, step S302 "determining the second active power instruction according to the evaluation result and the first active power instruction of each wind turbine", including:

s501, performing difference processing on target power indicated by the first active power instruction and actual power of the current wind power plant to obtain difference power.

In the embodiment of the application, after the first active power instruction is obtained, extracting the target power indicated by the first active power instruction, collecting the actual power of the current wind power plant, and performing difference processing on the target power indicated by the first active power instruction and the actual power of the front wind power plant to obtain the difference power; optionally, a difference value between the target power indicated by the first active power instruction and the actual power of the front wind farm may be calculated according to the following formula (7):

P＝P _command -P _real (7)；

wherein P is the difference power, P _command For the target power indicated by the first active power instruction, P _real Is the actual power of the current wind farm.

S502, determining a second active power instruction according to the difference power and the evaluation result of each wind turbine generator.

In the embodiment of the application, after the differential power and the evaluation result of each wind turbine are obtained, the server arranged in the station determines the second active power instruction of each wind turbine according to the differential power and the evaluation result of each wind turbine. Optionally, the difference power and the evaluation result of each wind turbine generator may be calculated according to the following formula (8):

wherein P is _ref-i For the second active power instruction of each wind turbine generator, i is the number of wind turbine generator in the station, and P _real-i The active actual output value of the ith machine set is P is difference power, S _i S is an evaluation result of each wind turbine generator system _k For i=k is S _i And (5) corresponding evaluation results.

On the basis of the embodiment shown in fig. 2, as shown in fig. 9, the method further includes:

s204, screening the original data of each wind turbine according to preset conditions to obtain the original data of a plurality of wind turbines meeting the requirements.

In the embodiment of the application, the pitch angle data and the wind speed data of each wind turbine can be respectively screened according to the preset conditions, if the pitch angle data and the wind speed data of a certain wind turbine meet the preset conditions, the wind turbine has the conditions of participating in active adjustment, can participate in subsequent instruction distribution, traverses the pitch angle data and the wind speed data of each wind turbine, and obtains a plurality of wind turbines meeting the requirements of the preset conditions, and further obtains the pitch angle data, the wind speed data and the rotating speed data of a plurality of wind turbines. Optionally, the preset condition may be that each wind turbine generator is screened according to the following formula (9):

wherein beta is _i Is pitch angle data of any wind turbine generator, beta _max For maximum allowable pitch angle data, v _in To cut in wind speed data, v _out To cut out wind speed data, v _i The wind speed data of any wind turbine generator set.

S205, converting the original data of the plurality of wind turbines meeting the requirements into an original data matrix corresponding to the plurality of wind turbines.

After the original data of the plurality of wind turbines meeting the requirements are obtained, the original data of the plurality of wind turbines are converted into an original data matrix corresponding to the plurality of wind turbines according to the form that pitch angle data of each wind turbine, wind speed data of each wind turbine and rotating speed data of each wind turbine are respectively in a row. Alternatively, the raw data matrix corresponding to the plurality of wind turbines may be expressed as the following formula (10):

Wherein x is an original data matrix corresponding to a plurality of wind turbines, omega ₁ For the rotational speed data of the first wind turbine, beta ₁ For pitch angle data of the first wind turbine, v ₁ For the wind speed data of the first wind turbine generator, omega _n Is the rotating speed data of the nth wind turbine generator set, beta _n Is pitch angle data of the nth wind turbine generator, v _n And the wind speed data of the nth wind turbine generator set.

Further, the step S202 "determining a second active power instruction according to the original data and the first active power instruction of each wind turbine generator includes:

s202, determining a second active power instruction according to the original data matrix and the first active power instruction.

According to the instruction distribution method provided by the embodiment of the application, the original data of each wind turbine generator is screened to obtain the original data matrix corresponding to a plurality of wind turbine generator which can participate in the distribution of the subsequent instructions, so that a foundation is laid for determining the second active power instruction of each wind turbine generator based on the original data corresponding to a plurality of wind turbine generator which can participate in the distribution of the subsequent instructions, the determined second active power instruction of each wind turbine generator is more accurate, the performance index of the first active power instruction sent by a wind power plant response scheduling center is improved, and the frequency safety of a power grid is further improved.

In a complete embodiment, as shown in fig. 10, the method for distributing the instruction includes:

s10, when a first active power instruction sent by a dispatching center is received, acquiring original data of each wind turbine generator;

s11, screening the original data of each wind turbine according to preset conditions to obtain the original data of a plurality of wind turbines meeting the requirements;

s12, converting the original data of the plurality of wind turbines meeting the requirements into an original data matrix corresponding to the plurality of wind turbines;

s13, carrying out standardization processing on the rotational speed data and the pitch angle data of the plurality of wind turbines according to a first preset rule, and determining first standardization data;

s14, carrying out standardization processing on wind speed data of a plurality of wind turbines according to a second preset rule, and determining second standardization data;

s15, obtaining standardized data of a plurality of wind turbines according to the first standardized data and the second standardized data;

s16, carrying out variability processing on the standardized data of the plurality of wind turbines to obtain variability results;

s17, carrying out conflict processing on the standardized data of the plurality of wind turbines to obtain a conflict result;

s18, carrying out weight calculation on the variability result and the conflict result to obtain weights of a plurality of wind turbines;

S19, determining evaluation results of the plurality of wind turbines according to weights of the plurality of wind turbines and standardized data of the plurality of wind turbines;

s20, performing difference processing on the target power indicated by the first active power instruction and the actual power of the current wind power plant to obtain difference power;

s21, determining a second active power instruction according to the difference power and the evaluation results of the wind turbines;

s22, sending the second active power instruction to the plurality of wind turbines.

In this embodiment, in order to compare the superiority of the above-mentioned instruction distribution method, an average distribution method of active adjustment amounts of the station, a wind speed weight distribution method, and the proposed instruction distribution method are set as a comparison group, and the root mean square error, that is, the control deviation, between the active instruction and the active actual output of the station in each adjustment process is measured to compare the superiority and inferiority between each control strategy.

The result shows that when the full high wind speed is input, the control error of the wind speed weight distribution method is minimum under the condition of smaller load shedding, and the control deviation of the distribution method of the proposed instruction is larger and is about 0.92% larger; under the condition of a large load shedding instruction, the distribution method of the proposed instruction has the minimum control deviation. In conclusion, under the condition of full high wind speed input, the distribution method of the proposed command can be better suitable for various load shedding commands, and effectively reduces the response error of the station-level active command.

When the uniform wind speed is input, the control error of the distribution method of the proposal instruction is minimum under the condition of smaller load shedding; under the condition of larger load shedding, the average distribution control deviation of the station active instructions is the smallest, and the control error of the distribution method of the proposed instructions is about 0.78%. In conclusion, under the condition of uniform wind speed input, the distribution method of the proposed command can fully utilize the unit adjusting potential and effectively track the station active command.

In summary, compared with the existing average distribution method and the distribution method according to wind speed weight, the distribution method instructed by the proposal has small control error, and can adapt to more wind speed input conditions and more station load shedding levels.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides an instruction distribution device for realizing the instruction distribution method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the dispensing device for one or more instructions provided below may refer to the limitation of the dispensing method for the instructions described above, which is not repeated here.

In one embodiment, as shown in fig. 11, there is provided an instruction distribution apparatus including: an acquisition module 10, a determination module 11 and a transmission module 12, wherein:

the acquiring module 10 is configured to acquire original data of each wind turbine generator set when receiving a first active power instruction sent by the dispatching center; the original data comprise wind speed data, pitch angle data and rotating speed data;

the determining module 11 is configured to determine a second active power instruction according to the original data of each wind turbine generator and the first active power instruction;

and the sending module 12 is used for sending the second active power instruction to each wind turbine generator.

In one embodiment, as shown in fig. 12, the determining module 11 includes: an evaluation unit 110 and a determination unit 111, wherein:

the evaluation unit 110 is specifically configured to evaluate the performance of each wind turbine according to the original data of each wind turbine and a preset evaluation algorithm, so as to obtain an evaluation result of each wind turbine;

the determining unit 111 is specifically configured to determine the second active power instruction according to the evaluation result of each wind turbine generator and the first active power instruction.

In one embodiment, the evaluation unit 110 includes: a processing subunit, an allocation subunit, and a first determination subunit, wherein:

In one embodiment, the processing subunit is specifically configured to perform standardization processing on the rotational speed data and the pitch angle data of each wind turbine according to a first preset rule, and determine first standardization data; carrying out standardization processing on wind speed data of each wind turbine according to a second preset rule, and determining second standardization data; and obtaining the standardized data of each wind turbine according to the first standardized data and the second standardized data.

In one embodiment, the determining unit 111 includes: a difference processing subunit and a second determining subunit, wherein:

the output value processing subunit is specifically configured to perform difference processing on the target power indicated by the first active power instruction and the actual power of the current wind farm to obtain a difference power;

In one embodiment, as shown in fig. 13, the apparatus further includes: a screening module 13 and a conversion module 14, wherein:

the screening module 13 is used for screening the original data of each wind turbine according to preset conditions to obtain the original data of a plurality of wind turbines meeting the requirements;

the conversion module 14 is configured to convert raw data of a plurality of wind turbines meeting requirements into a raw data matrix corresponding to the plurality of wind turbines;

the determining module 11 is configured to determine a second active power instruction according to the original data matrix and the first active power instruction.

The respective modules in the above-described instruction distribution apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In one embodiment, a computer device is provided, which may be a server, and the internal structure of which may be as shown in fig. 14. The computer device includes a processor, a memory, an Input/Output interface (I/O) and a communication interface. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used to store raw data. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method of assigning instructions.

It will be appreciated by those skilled in the art that the structure shown in fig. 14 is merely a block diagram of a portion of the structure associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements are applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program performing the steps of:

and sending the second active power instruction to each wind turbine generator.

In one embodiment, the processor when executing the computer program further performs the steps of:

In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:

and sending the second active power instruction to each wind turbine generator.

In one embodiment, the computer program when executed by the processor further performs the steps of:

In one embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, performs the steps of:

And sending the second active power instruction to each wind turbine generator.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive RandomAccess Memory, MRAM), ferroelectric Memory (Ferroelectric RandomAccess Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (RandomAccess Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic RandomAccess Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims

1. A method of assigning instructions, the method comprising:

And sending the second active power instruction to each wind turbine generator.

2. The method of claim 1, wherein said determining a second active power command based on raw data of each of said wind turbines and said first active power command comprises:

and determining the second active power instruction according to the evaluation result of each wind turbine generator and the first active power instruction.

3. The method according to claim 2, wherein the evaluating the performance of each wind turbine according to the raw data of each wind turbine and a preset evaluation algorithm to obtain an evaluation result of each wind turbine includes:

according to the standardized data of each wind turbine, corresponding weights are distributed to each wind turbine, and the weights of the wind turbines are obtained;

4. The method of claim 3, wherein assigning a corresponding weight to each of the wind turbines according to the standardized data of each of the wind turbines to obtain the weight of each of the wind turbines comprises:

carrying out variability processing on the standardized data of each wind turbine generator to obtain variability results;

and carrying out weight calculation on the variability result and the conflict result to obtain the weight of each wind turbine.

5. The method of claim 3, wherein the normalizing the raw data of each wind turbine generator to obtain normalized data of each wind turbine generator includes:

carrying out standardized processing on the rotational speed data and the pitch angle data of each wind turbine generator according to a first preset rule, and determining first standardized data;

performing standardization processing on the wind speed data of each wind turbine generator set according to a second preset rule, and determining second standardization data;

and obtaining the standardized data of each wind turbine generator according to the first standardized data and the second standardized data.

6. The method according to claim 2, wherein determining the second active power instruction according to the evaluation result of each wind turbine generator and the first active power instruction includes:

and determining the second active power instruction according to the difference power and the evaluation result of each wind turbine generator.

7. The method according to claim 1, wherein the method further comprises:

converting the original data of the plurality of wind turbines meeting the requirements into an original data matrix corresponding to the plurality of wind turbines;

the determining a second active power instruction according to the original data of each wind turbine generator and the first active power instruction includes:

8. An instruction dispensing apparatus, the apparatus comprising:

9. The apparatus for distributing instructions of claim 8, wherein said determining module comprises:

the evaluation unit is specifically configured to evaluate the performance of each wind turbine according to the original data and a preset evaluation algorithm of each wind turbine, so as to obtain an evaluation result of each wind turbine;

the determining unit is specifically configured to determine the second active power instruction according to the evaluation result of each wind turbine generator set and the first active power instruction.

10. The dispensing device of instructions according to claim 9, wherein the evaluation unit comprises:

the processing subunit is specifically configured to perform standardized processing on the raw data of each wind turbine generator set to obtain standardized data of each wind turbine generator set;

The allocation subunit is specifically configured to allocate a corresponding weight to each wind turbine according to the standardized data of each wind turbine, so as to obtain the weight of each wind turbine;

the first determining subunit is specifically configured to determine an evaluation result of each wind turbine generator according to the weight of each wind turbine generator and the standardized data of each wind turbine generator.

11. The device for distributing instructions according to claim 10, wherein the distribution subunit is specifically configured to perform variability processing on the standardized data of each wind turbine to obtain a variability result; carrying out conflict processing on the standardized data of each wind turbine generator to obtain a conflict result; and carrying out weight calculation on the variability result and the conflict result to obtain the weight of each wind turbine.

12. The device for distributing the instructions according to claim 10, wherein the processing subunit is specifically configured to perform normalization processing on the rotational speed data and the pitch angle data of each wind turbine generator according to a first preset rule, and determine first normalization data; performing standardization processing on the wind speed data of each wind turbine generator set according to a second preset rule, and determining second standardization data; and obtaining the standardized data of each wind turbine generator according to the first standardized data and the second standardized data.

13. The dispensing device of instructions according to claim 9, wherein the determining unit comprises:

the second determining subunit is specifically configured to determine the second active power instruction according to the difference power and the evaluation result of each wind turbine generator set.

14. The apparatus for dispensing instructions of claim 8 wherein the apparatus further comprises:

the screening module is used for screening the original data of each wind turbine generator set according to preset conditions to obtain the original data of a plurality of wind turbine generator sets meeting the requirements;

the determining module is configured to determine a second active power instruction according to the original data matrix and the first active power instruction.

15. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the computer program is executed.

16. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.