Wind generating set control system and method thereof

Abstract

The invention provides a wind generating set control system and method, and the method comprises the steps: deducing short-term wind power information of a power generation environment and short-term power generation of a generator according to real-time information, determining the power demand of the generator according to the total power demand of a power grid, and adjusting the response speed of the generator to the short-term wind power information, the current wind energy conversion efficiency of the generator is determined according to the real-time rotating speed of the generator, the generated electric energy is synchronously transmitted to the power grid, the temporary electricity demand of the power grid is determined according to the transmission feedback information of the power grid, and the rotating speed of the generator is subjected to auxiliary adjustment, so that the wind power condition in a short period can be predicted; therefore, the generator is controlled to adjust the rotating speed in advance, voltage instability caused by wind speed fluctuation is avoided, power generation work of the generator is adjusted according to the electricity demand of the power grid, and the phenomenon of overload or low-efficiency operation is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of generator control, in particular to a wind turbine generator control system and method thereof. BACKGROUND

[0002] Wind power generation is a renewable energy technology that generates electricity by driving a wind wheel with wind power. The wind wheel transmits the rotating mechanical energy to the generator through the transmission system. The generator converts mechanical energy into electrical energy through electromagnetic induction principle. The rotating blades push the rotor to change the magnetic field, thereby generating current. Then the generated current is adjusted through the power control system to ensure the stability of voltage and frequency. Then, these electric powers are transmitted to the power grid through the transmission line for residents and industrial use. Since no greenhouse gases or other pollutants are emitted when using wind power technology, and the wind of nature is inexhaustible, although the initial investment is high, the operation and maintenance cost is low, so wind power generation technology is widely used in the field of power generation. However, wind power generation also has certain shortcomings, including: 1. The rotational speed of the wind wheel depends on the size of the environmental wind, and often overloads when the wind is strong, and runs inefficiently when the wind is weak. 2. When overloading occurs, other equipment in the power plant will be affected, and in severe cases, the overall benefit of the power plant will be affected. 3. If the wind changes in a short period of time, it is easy to cause voltage instability. At present, how to scientifically control the rotational speed of the generator to ensure power generation and avoid overloading or inefficient phenomenon has become a problem to be solved.

[0003] Therefore, the present application provides a wind turbine generator control system and method thereof. SUMMARY

[0004] The wind turbine generator control system and method thereof can predict the wind power situation in a short period of time, thereby controlling the generator to adjust the rotational speed in advance, avoiding voltage instability caused by wind speed fluctuation, and adjusting the power generation of the generator according to the power demand of the power grid, avoiding overloading or inefficient operation.

[0005] The present application provides a wind turbine generator control system, comprising:

[0006] A monitoring and estimation module is used to derive short-term wind power information of a power generation environment and short-term power generation capacity of a generator according to real-time information;

[0007] A unit adjustment module is used to determine the power generation capacity of the generator according to the total power demand of the power grid, and adjust the response rotational speed of the generator to the short-term wind power information;

[0008] A power generation control module is configured to determine a current wind energy conversion efficiency of the power generator according to a real-time rotating speed of the power generator, and synchronously transmit generated electric energy into the power grid;

[0009] A feedback application module is configured to determine a temporary power demand of the power grid according to transmission feedback information of the power grid, and assist in adjusting the rotating speed of the power generator.

[0010] In an implementable manner,

[0011] The monitoring and estimating module comprises:

[0012] An information acquisition unit is configured to acquire current power information corresponding to each power generator, determine current wind response parameters corresponding to each power generator in combination with current wind information of the power generation environment, construct a wind information flow of the power generation environment according to corresponding current wind information at different time points, and construct a response parameter flow corresponding to each power generator.

[0013] An information processing unit is configured to acquire meteorological information of the power generation environment, predict corresponding short-term wind information of the power generation environment within a preset future time length in combination with the wind information flow, and identify a plurality of same type response parameters related to the short-term wind information in each response parameter flow.

[0014] A power generation derivation unit is configured to determine a short-term power generation amount of each power generator within the preset future time length by using the same type response parameters, and display the short-term power generation amount.

[0015] In an implementable manner,

[0016] The unit group adjustment module comprises:

[0017] A task allocation unit is configured to determine a minimum power generation amount corresponding to each power generator within different preset power generation periods according to the total power demand, generate a power generation task list for this time, and calculate an original power generation amount corresponding to the power generator within a next preset period by using the short-term power generation amount corresponding to each power generator.

[0018] An adjustment preparation unit is configured to issue a power generation demand instruction for each power generator according to the power generation task list when a sum of the original power generation amounts is less than a sum of the minimum power generation amounts, and construct a wind virtual scene of the power generation environment by using the short-term wind information.

[0019] A power generation simulation unit is configured to adjust the rotating speed of the power generator corresponding to the power generator in the wind virtual scene, obtain response data corresponding to each power generator at different rotating speeds, respectively perform time fusion and space fusion on multi-dimensional data features of each response data, and obtain a plurality of rotating speed adjustment information corresponding to each power generator.

[0020] A rotation speed determination unit is configured to determine a target rotation speed of the generator according to the response data, identify an adjustment process of the generator from a current rotation speed to the target rotation speed in the corresponding rotation speed adjustment information, and adjust a value of the target rotation speed according to an adjustment time length of the adjustment process to obtain a corresponding response rotation speed of each generator.

[0021] In an implementable manner,

[0022] Further comprising:

[0023] According to the adjustment process corresponding to each generator, each generator is adjusted from the current rotation speed to the corresponding target rotation speed.

[0024] If the target rotation speed is different from the corresponding response rotation speed, an auxiliary process corresponding to the adjustment from the target rotation speed to the response rotation speed is found in the rotation speed adjustment information.

[0025] The target rotation speed corresponding to the generator is adjusted to the response rotation speed by using the auxiliary process.

[0026] In an implementable manner,

[0027] The power generation control module comprises:

[0028] A power generation supervision unit is configured to obtain a real-time rotation speed corresponding to each generator respectively, derive a current wind energy conversion efficiency corresponding to each generator in combination with current wind power information of the power generation environment, and calculate a current power generation amount corresponding to each generator respectively.

[0029] A power grid configuration unit is configured to configure a corresponding power receiving frequency of the power grid according to the wind energy conversion efficiency, determine a power factor between each generator and the power grid according to a power transmission distance between each generator and the power grid, and determine a power storage space of the power grid according to the current power generation amount.

[0030] A transmission execution unit is configured to perform voltage transformation on power generated by the generator according to the power factor, transmit the voltage-transformed power to the power grid, perform voltage boosting / dropping on the voltage-transformed power according to the power receiving frequency, and transmit acquired power of the power grid to the power storage space for storage.

[0031] In an implementable manner,

[0032] Further comprising:

[0033] A transmission supervision unit is configured to acquire real-time output data corresponding to each of the generators and real-time receiving data of the power grid to construct a transmission-receiving data network, and locate a real-time transmission position corresponding to each of the variable voltage power in the transmission-receiving data network.

[0034] The real-time receiving data is used to construct real-time load characteristics and real-time power characteristics of the power grid, and determine real-time load and real-time power corresponding to each of the real-time transmission positions.

[0035] The real-time load and the real-time power are balanced respectively to determine a plurality of voltage abnormal positions and a plurality of frequency fluctuation positions contained in the transmission-receiving data network.

[0036] The power grid is compensated for voltage stabilization according to a voltage deviation corresponding to each of the voltage abnormal positions, and is compensated for frequency regulation according to a fluctuation value corresponding to each of the frequency fluctuation positions.

[0037] In an implementable manner,

[0038] The feedback application module comprises:

[0039] A power supply analysis unit is configured to acquire real-time external power supply information of the power grid, determine a newly connected power consumption device of the power grid, collect an instantaneous power consumption corresponding to the newly connected power consumption device, and derive an estimated power consumption corresponding to the newly connected power consumption device in a next preset future time length.

[0040] A feedback analysis unit is configured to determine a temporary power demand of the power grid according to the estimated power consumption and power transmission loss, and construct a temporary power generation instruction to be transmitted to the target generator with the smallest real-time rotating speed.

[0041] A temporary adjustment unit is configured to determine a target rotating speed of the target generator according to the short-term wind power information and the temporary power generation instruction, and adjust the rotating speed of the target generator to the target rotating speed.

[0042] In an implementable manner,

[0043] Further comprising:

[0044] When the connected time length of the newly connected power consumption device in the power grid is greater than 3 preset future time lengths, the newly connected power consumption device is regarded as a commonly used power consumption device, and the total power demand is updated by using the temporary power demand.

[0045] In an implementable manner,

[0046] Further comprising:

[0047] When the off-grid duration of the common power consumption device in the power grid is greater than 3 preset future time lengths, the common power consumption device is deleted, and the total power demand is updated according to the average period power consumption of the common power consumption device.

[0048] The application provides a wind turbine generator control method, comprising:

[0049] Step 1: deriving short-term wind power information of a power generation environment and short-term power generation of a generator according to real-time information;

[0050] Step 2: determining the power generation of the generator according to the total power demand of the power grid, and adjusting the response speed of the generator to the short-term wind power information;

[0051] Step 3: determining the current wind energy conversion efficiency of the generator according to the real-time speed of the generator, and synchronously transmitting generated electric energy to the power grid;

[0052] Step 4: determining the temporary power demand of the power grid according to transmission feedback information of the power grid, and assisting in adjusting the speed of the generator.

[0053] The above technical solution has the following beneficial effects: in order to realize efficient wind energy utilization, automatic adjustment, stable operation and high energy saving, and at the same time ensure stable output of electric energy, avoid voltage instability caused by wind speed fluctuation, first, the short-term wind power information of the link and the short-term power generation of the generator are derived according to the real-time information of the power generation environment, then the power generation of the power generation is determined according to the total power demand of the power grid, so as to adjust the response speed of the generator to carry out power generation work, and the current wind energy conversion efficiency of the generator is determined according to the real-time speed of the generator, thereby synchronously transmitting the generated electric energy to the power grid for use, in order to better cooperate with the work of the power grid and avoid power failure, when the temporary power demand of the power grid increases, the speed of the engine is fine-tuned to respond to the demand of the power grid, so as to guarantee the original power generation and temporarily respond to the increased power generation, without affecting the normal operation of the generator and the power grid, which can meet the power demand of the power grid and timely respond to the temporary power demand, meet the operation of various wind turbine generators, and is beneficial to improving the overall benefit of the wind power industry.

[0054] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. The objects and other advantages of the present application can be achieved and obtained by the structure particularly pointed out in the written description and the accompanying drawings.

[0055] The technical solutions of the present application will be further described in detail below by means of the accompanying drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0056] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are intended to provide a further understanding of the application, and are made a part of the specification. In the drawings:

[0057] Figure 1 It is a schematic diagram of a wind turbine generator control system in an embodiment of the application;

[0058] Figure 2 It is a schematic diagram of a wind turbine generator control method in an embodiment of the application. DETAILED DESCRIPTION

[0059] The preferred embodiments of the application will be described hereinafter with reference to the accompanying drawings, in which the preferred embodiments of the application will be described. It should be understood that the preferred embodiments described herein are intended to serve only as an illustration and explanation of the application and should not be used as a limitation of the application.

[0060] Embodiment 1:

[0061] This embodiment provides a wind turbine generator control system, as shown in Figure 1 comprising:

[0062] a monitoring estimation module for deriving short-term wind information of a power generation environment and short-term power generation capacity of a generator according to real-time information;

[0063] a unit adjustment module for determining the required power generation capacity of the generator according to the total power demand of the power grid, and adjusting the response speed of the generator to the short-term wind information;

[0064] a power generation control module for determining the current wind energy conversion efficiency of the generator according to the real-time speed of the generator, and synchronously transmitting generated power to the power grid;

[0065] a feedback application module for determining the temporary power demand of the power grid according to the transmission feedback information of the power grid, and assisting in adjusting the speed of the generator.

[0066] In this example, the short-term wind information represents the result of deriving the wind conditions of the link in the future period of time according to the current situation of the power generation environment, wherein the short term is a time length set in advance by the management personnel, generally 3 hours;

[0067] In this example, the short-term power generation capacity represents the estimated power generation capacity of a generator in the future period of time, and the short-term power generation capacity is related to the short-term wind information;

[0068] In this example, the required power generation capacity represents the power demand of the power supply grid;

[0069] In this example, the response speed represents the speed that the generator should present under the influence of short-term wind.

[0070] In this example, the current wind energy conversion efficiency represents the efficiency of the generator in converting wind energy into electrical energy;

[0071] In this example, the temporary electricity demand represents a temporary increase in the demand for electrical energy by the power grid for various reasons;

[0072] In this example, the auxiliary adjustment represents the process of making minor adjustments to the engine speed based on the temporary electricity demand;

[0073] In this example, the power generation environment includes several generators.

[0074] The working principle and beneficial effects of the above technical solution are as follows: in order to achieve efficient wind energy utilization, automatic adjustment, stable operation, and high energy efficiency, while ensuring stable output of electrical energy and avoiding voltage instability due to wind speed fluctuations, first, the short-term wind information of the link and the short-term power generation of the generator are derived based on the real-time information of the power generation environment, then the required power generation of the power generation is determined based on the total electricity demand of the power grid, so as to adjust the response speed of the generator to generate power, and the current wind energy conversion efficiency of the generator is determined based on the real-time speed of the generator, thereby synchronously transmitting the generated electrical energy to the power grid for use by the power grid. In order to better cooperate with the work of the power grid and avoid power outages, when the temporary electricity demand of the power grid increases, the speed of the engine is finely adjusted to respond to the demand of the power grid. In this way, the original power generation can be guaranteed, and the increased power generation can be temporarily responded to, without affecting the normal operation of the generator and the power grid. Through this way, the electricity demand of the power grid can be met, and the temporary electricity demand can be responded to in time, the operation of various wind turbine generators can be met, and the overall benefit of the wind power industry can be improved.

[0075] Embodiment 2:

[0076] Based on embodiment 1, the wind turbine generator control system comprises a monitoring and estimating module, which comprises:

[0077] An information acquisition unit acquires the current power information of each generator, determines the current wind power response parameters of each generator in combination with the current wind power information of the power generation environment, constructs the wind power information flow of the power generation environment and the response parameter flow of each generator according to the corresponding current wind power information at different times;

[0078] An information processing unit is configured to acquire the meteorological information of the power generation environment, predict the short-term wind power information of the power generation environment within a preset future time period in combination with the wind power information flow, and identify a plurality of similar response parameters related to the short-term wind power information in each response parameter flow;

[0079] A power generation derivation unit is configured to determine and display the short-term power generation of each of the power generators in the preset future time period by using the same type of response parameters.

[0080] In this example, the current power information represents the power presented by the power generator under the current working condition;

[0081] In this example, the current wind response parameter represents the parameter presented by the rotating speed of the power generator when affected by the wind force;

[0082] In this example, the preset future time period is 3 hours;

[0083] In this example, the response parameter flow represents the time-sequenced result of the corresponding current response parameters of a power generator at different time points;

[0084] In this example, the wind information flow represents the time-sequenced result of the wind information of the power generation environment at different time points;

[0085] In this example, the same type of response parameter represents the parameter in the response parameter flow that has a similarity higher than 90% with the short-term wind information.

[0086] The working principle and beneficial effects of the above technical solution are as follows: in order to ensure the stability of the voltage, the wind speed is short-term predicted, and the unit operation strategy is adjusted in advance to realize efficient wind energy utilization. First, the corresponding information flow and parameter flow are constructed according to the current power information of the power generator and the current wind response parameter of the power generator to the wind environment. Then, the short-term wind information of the power generation environment is predicted according to the meteorological information and the wind information. Finally, the short-term power generation of the power generator in the future time period is determined according to the power generation corresponding to the same type of response parameter related to the short-term wind information in the parameter flow. In this way, the operation state of the power generator can be adjusted in advance according to the short-term wind change, so that the voltage is stable.

[0087] Embodiment 3:

[0088] On the basis of embodiment 1, the wind turbine generator control system comprises a unit adjustment module, which comprises:

[0089] A task allocation unit is configured to determine the minimum power generation cost of each of the power generators in different preset power generation periods according to the total power demand, generate a power generation task list, and calculate the original power generation of the power generator in the next preset period by using the short-term power generation of each of the power generators.

[0090] An adjustment preparation unit is configured to issue a power generation instruction to each of the power generators according to the power generation task list when the sum of the original power generation is less than the sum of the minimum power generation, and to construct a wind virtual scene of the power generation environment by using the short-term wind information.

[0091] a power generation simulation unit configured to adjust a rotating speed of each of the power generators in the wind virtual scene by using the power generator pair to obtain corresponding response data of each of the power generators at different rotating speeds, and to perform time fusion and space fusion on multi-dimensional data features of each of the response data to obtain a plurality of rotating speed adjustment information corresponding to each of the power generators;

[0092] a rotating speed determination unit configured to determine a target rotating speed of each of the power generators according to the response data, to identify an adjustment process of each of the power generators from a current rotating speed to the target rotating speed in the corresponding rotating speed adjustment information, and to perform numerical adjustment on the target rotating speed according to an adjustment time length of the adjustment process to obtain a corresponding response rotating speed of each of the power generators.

[0093] In this example, the preset power generation period represents 30 minutes of power generation.

[0094] In this example, the power generation task list represents a summary of tasks for guiding each of the power generators to generate power.

[0095] In this example, the original power generation amount represents a power generation amount of the power generators without adjusting the rotating speed of the power generators.

[0096] In this example, the wind virtual scene represents a virtual scene established in a virtual space and identical to a wind condition of a power generation environment.

[0097] In this example, the multi-dimensional data features represent features of the response data in a time dimension and features of the response data in a space dimension.

[0098] In this example, the rotating speed adjustment information represents an amount of data and a manner of adjustment of the rotating speed of the power generators.

[0099] In this example, the target rotating speed represents a rotating speed of the power generators after completing the rotating speed adjustment.

[0100] The working principle and beneficial effects of the technical solution are as follows: the minimum power generation amount of the generator in different preset power generation periods is determined according to the total power demand of the power grid, so as to construct a corresponding power generation task list; the original power generation amount of the generator in the next preset period is derived according to the short-term power generation amount of the generator; when the total power generation amount of all generators is insufficient, the corresponding power generation demand instruction is issued to each generator according to the power generation task list; in this way, the instructions can be issued to multiple generators at the same time, the tasks can be allocated to each generator in a short time, the wind power virtual scene of power generation is constructed, the speed of the generator is adjusted in the virtual scene, the target speed of the generator is determined according to the response data of the generator at different speeds, and the speed of the generator is adjusted; in this way, the speed can be quickly adjusted, the task of each generator can be clearly determined, the working condition of the generator can be observed by the management personnel at any time, multiple generators can be closely coordinated, and the power generation of the power grid can be completed.

[0101] Embodiment 4

[0102] On the basis of embodiment 3, the wind turbine generator control system further comprises:

[0103] According to the adjustment process corresponding to each generator, the current speed of each generator is adjusted to the target speed corresponding to the generator.

[0104] If the target speed is different from the corresponding response speed, the auxiliary process corresponding to the adjustment from the target speed to the response speed is found in the speed adjustment information.

[0105] The target speed of the generator is adjusted to the response speed by using the auxiliary process.

[0106] The working principle and beneficial effects of the technical solution are as follows: whether the engine has been adjusted to the target speed is determined according to the adjustment process of the engine, and then the engine is assisted to adjust, so as to further ensure that the engine has been adjusted to the target speed.

[0107] Embodiment 5

[0108] On the basis of embodiment 1, the wind turbine generator control system comprises:

[0109] The power generation supervision unit is configured to acquire the real-time speed corresponding to each generator, derive the current wind energy conversion efficiency corresponding to each generator in combination with the current wind information of the power generation environment, and calculate the current power generation amount corresponding to each generator.

[0110] a power grid configuration unit configured to configure a corresponding power receiving frequency of the power grid according to the wind energy conversion efficiency, determine a power factor between each of the generators and the power grid according to a power transmission distance between each of the generators and the power grid, and determine a power storage space of the power grid according to the current power generation amount;

[0111] a transmission execution unit configured to transform the power generated by the generators according to the power factor, transmit the transformed power to the power grid, and boost or reduce the transformed power according to the power receiving frequency, and transmit the acquired power of the power grid to the power storage space for storage.

[0112] In this example, the power receiving frequency refers to a frequency at which the power grid receives the power generated by the generators.

[0113] In this example, the power transmission distance refers to a distance between the generators and the power grid.

[0114] In this example, the power factor refers to a ratio between an actual amount of power transmitted to the power grid and an original amount of power generated by the generators. The actual amount of power transmitted to the power grid is different from the original amount of power generated by the generators due to power loss during transmission.

[0115] In this example, the transformed power is boosted when the voltage of the transformed power is less than the voltage of the power grid, and the transformed power is reduced when the voltage of the transformed power is greater than the voltage of the power grid.

[0116] The working principle and beneficial effects of the above technical solution are as follows: the current wind energy conversion efficiency of the generators is derived according to the real-time rotational speed of the generators and the current wind information of the power generation environment, so as to calculate the current power generation amount of the generators. The power generation amount can be checked by the management personnel at any time remotely or near-end. In order to improve the power supply efficiency and quality, the power receiving frequency and the power factor of the power grid and the power storage space are set in advance, and then the voltage generated by the generators is transformed and then transmitted to the power grid. Finally, the power is transmitted to the storage space of the power grid through boosting or reducing processing. In this way, the power supply amount of the generators can be guaranteed, and the power can be stably and durably transmitted to the power grid, thereby guaranteeing the power demand of the power grid.

[0117] Embodiment 6

[0118] Based on the embodiment 5, the wind turbine generator control system further comprises:

[0119] a transmission supervision unit configured to acquire real-time output data of each of the generators and real-time receiving data of the power grid respectively, construct a transmission-receiving data network, and synchronously locate a real-time transmission position of each of the transformed power in the transmission-receiving data network.

[0120] constructing real-time load features and real-time power features of the power grid according to the real-time receiving data, determining real-time load and real-time power corresponding to each real-time transmission position;

[0121] respectively balancing and supervising each real-time load and each real-time power, determining several voltage abnormal positions and several frequency fluctuation positions contained in the transmission-receiving data network;

[0122] stabilizing and compensating the power grid according to voltage deviation corresponding to each voltage abnormal position, and frequency-compensating the power grid according to fluctuation value corresponding to each frequency fluctuation position.

[0123] In this example, the transmission-receiving data network represents a data network composed of the relationship between real-time output data and real-time receiving data;

[0124] In this example, the real-time transmission position represents the real-time position of the transformed electric energy in the transmission process;

[0125] In this example, the balancing and supervision represent deriving the numerical proportion balance between the real-time load and the implemented power;

[0126] In this example, the stabilizing and compensating represent the process of keeping the voltage of the power grid within a stable range, and the frequency-compensating represents the process of keeping the frequency value of the power grid within a stable range.

[0127] The working principle and beneficial effects of the above technical solutions are as follows: by using real-time output data and real-time receiving data to establish a transmission-receiving data network, the real-time transmission position of the transformed electric energy is located in the network, then the balance between the real-time load and the implemented power of the power grid is supervised, the voltage abnormal position and the frequency fluctuation position in the power grid are determined, and stabilizing and compensating and frequency-compensating are performed, thereby further ensuring the stability of the power grid.

[0128] Embodiment 7:

[0129] On the basis of Embodiment 1, the wind turbine generator control system comprises a feedback application module, which comprises:

[0130] a power supply analysis unit, configured to acquire real-time external power supply information of the power grid, determine newly connected power consumption equipment of the power grid, collect instantaneous power consumption corresponding to the newly connected power consumption equipment, and derive estimated power consumption corresponding to the newly connected power consumption equipment in a next preset future time length;

[0131] a feedback analysis unit, configured to determine temporary power demand of the power grid according to the estimated power consumption and electric energy transmission loss, and construct a temporary power generation instruction transmission to the target generator with the smallest real-time rotating speed;

[0132] A temporary adjustment unit is configured to determine a target rotating speed of the target generator according to the short-term wind power information and the temporary power generation instruction, and adjust the rotating speed of the target generator to the target rotating speed.

[0133] In this example, the real-time external power supply information represents information of the power consumption device connected to the power grid;

[0134] In this example, the temporary power consumption represents the power required by the newly connected power consumption device.

[0135] The working principle and beneficial effects of the above technical solution are as follows: the newly connected power consumption device in the power grid is determined by analyzing the real-time external power supply information of the power grid, the estimated power consumption is predicted according to the instantaneous power consumption, the temporary power consumption of the power grid is determined, and the real-time minimum rotating speed of the generator is derived. Finally, the target rotating speed of the generator is determined according to the short-term wind power information and the temporary power generation instruction, and the generator is finally adjusted to the corresponding target rotating speed, realizing temporary power supply and ensuring the stability of the power grid, and ensuring that the power grid can realize continuous power supply.

[0136] Embodiment 8:

[0137] On the basis of embodiment 7, the wind turbine generator control system further comprises:

[0138] When the connected duration of the newly connected power consumption device in the power grid is greater than 3 preset future durations, the newly connected power consumption device is regarded as a commonly used power consumption device, and the total power consumption is updated by using the temporary power consumption.

[0139] The working principle and beneficial effects of the above technical solution are as follows: when the newly connected power consumption device belongs to a commonly used power consumption device, the total power consumption of the power grid is re-determined to ensure the power supply of the power grid.

[0140] Embodiment 9:

[0141] On the basis of embodiment 8, the wind turbine generator control system further comprises:

[0142] When the disconnected duration of the commonly used power consumption device in the power grid is greater than 3 preset future durations, the commonly used power consumption device is deleted, and the total power consumption is updated according to the average periodic power consumption of the commonly used power consumption device.

[0143] The working principle and beneficial effects of the above technical solution are as follows: the total power consumption is adjusted according to the real-time situation of the power grid, and the power supply work is completed in cooperation with the power grid.

[0144] Embodiment 10:

[0145] The embodiment provides a wind turbine generator control method, as shown in Figure 2 The embodiment provides a wind turbine generator control method, as shown in

[0146] Step 1: Deriving short-term wind information of power generation environment and short-term power generation capacity of the generator according to real-time information;

[0147] Step 2: Determining the required power generation capacity of the generator according to the total power demand of the power grid, and adjusting the response speed of the generator to the short-term wind information;

[0148] Step 3: Determining the current wind energy conversion efficiency of the generator according to the real-time speed of the generator, and synchronously transmitting generated power to the power grid;

[0149] Step 4: Determining the temporary power demand of the power grid according to the transmission feedback information of the power grid, and assisting in adjusting the speed of the generator.

[0150] In this example, the short-term wind information represents the result of deriving the wind situation of this link in the future period of time according to the current situation of the power generation environment, where the short term is the time length set in advance by the management personnel, generally 3 hours;

[0151] In this example, the short-term power generation capacity represents the estimated power generation capacity of a generator in the future period of time, and the short-term power generation capacity is related to the short-term wind information;

[0152] In this example, the required power generation capacity represents the power demand of the power supply grid;

[0153] In this example, the response speed represents the speed that the generator should present under the influence of short-term wind;

[0154] In this example, the current wind energy conversion efficiency represents the efficiency of the generator in converting wind energy into electric energy;

[0155] In this example, the temporary power demand represents the temporary increase in power demand of the power grid due to various reasons;

[0156] In this example, the auxiliary adjustment represents the process of slightly adjusting the speed of the generator according to the temporary power demand;

[0157] In this example, the power generation environment includes several generators.

[0158] The working principle and beneficial effects of the above technical solution are as follows: in order to realize efficient wind energy utilization, automatic adjustment, stable operation and high efficiency and energy saving, and to ensure stable output of electric energy and avoid voltage instability caused by wind speed fluctuation, first, the short-term wind power information of the link and the short-term power generation of the generator are derived according to the real-time information of the power generation environment, then the required power generation of the power generation is determined according to the total power demand of the power grid, so as to adjust the response speed of the generator to generate power, and the current wind energy conversion efficiency of the generator is determined according to the real-time speed of the generator, thereby the generated electric energy is transmitted to the power grid for use, in order to better cooperate with the work of the power grid and avoid power failure, when the temporary power demand of the power grid increases, the speed of the engine is fine-tuned to respond to the demand of the power grid, in this way, the original power generation can be guaranteed, and the temporarily required power generation can be temporarily responded, without affecting the normal operation of the generator and the power grid, in this way, the power demand of the power grid can be met, and the temporary power demand can be responded in time, the operation of various wind turbine generators can be met, and the overall benefit of the wind power industry can be improved.

[0159] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A wind turbine control system, characterized in that, The application comprises: a monitoring estimation module for deriving short-term wind information of a power generation environment and short-term power generation capacity of a power generator according to real-time information; a unit adjustment module for determining power generation demand of the power generator according to total power demand of a power grid, and adjusting response speed of the power generator to the short-term wind information; a power generation control module for determining current wind energy conversion efficiency of the power generator according to real-time speed of the power generator, and synchronously transmitting generated power into the power grid; a feedback application module for determining temporary power demand of the power grid according to transmission feedback information of the power grid, and assisting in adjusting speed of the power generator.

2. A wind turbine generator system control system according to claim 1, wherein, The monitoring estimation module comprises: an information collection unit for acquiring current power information corresponding to each power generator, determining current wind response parameters corresponding to each power generator in combination with current wind information of the power generation environment, constructing a wind information flow of the power generation environment according to corresponding current wind information at different time points, and constructing a response parameter flow corresponding to each power generator; an information processing unit for acquiring meteorological information of the power generation environment, predicting corresponding short-term wind information of the power generation environment within a preset future time length in combination with the wind information flow, and identifying a plurality of same type response parameters related to the short-term wind information in each response parameter flow; a power generation derivation unit for determining short-term power generation capacity of each power generator within the preset future time length by using the same type response parameters and displaying the same.

3. A wind turbine generator system control system according to claim 1, wherein The unit adjustment module comprises: a task allocation unit for determining minimum power generation capacity corresponding to each power generator within different preset power generation periods according to the total power demand, generating a power generation task list, and calculating original power generation capacity corresponding to the power generator within a next preset period by using the short-term power generation capacity corresponding to each power generator; an adjustment preparation unit for issuing power generation demand instructions to each power generator according to the power generation task list when a total of original power generation capacity is less than a total of minimum power generation capacity, and constructing a wind virtual scene of the power generation environment by using the short-term wind information; a power generation simulation unit for adjusting speed of the power generator in the wind virtual scene to obtain response data corresponding to each power generator at different speeds, performing time fusion and space fusion on multi-dimensional data features of each response data, and obtaining a plurality of speed adjustment information corresponding to each power generator; a speed determination unit for determining a target speed of the power generator according to the response data, identifying an adjustment process of the power generator from a current speed to the target speed in the corresponding speed adjustment information, and performing numerical adjustment on the target speed according to an adjustment time length of the adjustment process to obtain a response speed corresponding to each power generator.

4. A wind turbine generator system control system according to claim 3, wherein The application further comprises: adjusting each power generator from the current speed to the target speed corresponding to each power generator according to the adjustment process corresponding to each power generator. If the target rotating speed is different from the corresponding response rotating speed, the rotating speed adjustment information lookup corresponds to an auxiliary process when the target rotating speed is adjusted to the response rotating speed; The auxiliary process is used to adjust the target rotating speed of the generator to the response rotating speed.

5. A wind turbine generator system control system according to claim 1, wherein, The power generation control module comprises: A power generation supervision unit is configured to acquire real-time rotating speeds of each generator, derive current wind energy conversion efficiencies of each generator based on current wind power information of the power generation environment, and calculate current power generation amounts of each generator, respectively; A power grid configuration unit is configured to configure a corresponding power receiving frequency of the power grid based on the wind energy conversion efficiencies, determine power factors between each generator and the power grid based on power transmission distances between each generator and the power grid, and determine a power storage space of the power grid based on the current power generation amounts; A transmission execution unit is configured to transform power generated by the generators based on the power factors, transmit the transformed power to the power grid, and step up or step down the transformed power based on the power receiving frequency, and transmit acquired power of the power grid to the power storage space for storage.

6. A wind power plant control system according to claim 5, characterised in that Further comprising: A transmission supervision unit is configured to acquire real-time output data of each generator and real-time receiving data of the power grid, respectively, to construct a transmission-receiving data network, and to synchronously locate real-time transmission positions of each transformed power in the transmission-receiving data network; Real-time load characteristics and real-time power characteristics of the power grid are constructed based on the real-time receiving data, and real-time loads and real-time powers corresponding to each real-time transmission position are determined; Balancing supervision is performed on each real-time load and each real-time power, respectively, to determine a plurality of voltage abnormal positions and a plurality of frequency fluctuation positions contained in the transmission-receiving data network; Voltage compensation is performed on the power grid based on voltage deviations corresponding to each voltage abnormal position, and frequency compensation is performed on the power grid based on fluctuation values corresponding to each frequency fluctuation position.

7. A wind turbine generator system control system according to claim 1, wherein, The feedback application module comprises: A power supply analysis unit is configured to acquire real-time external power supply information of the power grid, determine newly connected power consumption devices of the power grid, collect instantaneous power consumption amounts corresponding to the newly connected power consumption devices, and derive estimated power consumption amounts of the newly connected power consumption devices in a next preset future time period; A feedback analysis unit is configured to determine temporary power demand amounts of the power grid based on the estimated power consumption amounts and power transmission losses, and to construct temporary power generation instructions and transmit the temporary power generation instructions to a target generator with the smallest real-time rotating speed; A temporary adjustment unit is configured to determine a target rotating speed of the target generator based on the short-term wind power information and the temporary power generation instructions, and to adjust the rotating speed of the target generator to the target rotating speed.

8. A wind turbine generator system control system according to claim 7, wherein, Further comprising: When the connected time of the newly connected power consumption device in the power grid is greater than 3 preset future time periods, the newly connected power consumption device is regarded as a commonly used power consumption device, and the total power demand amount is updated based on the temporary power demand amount.

9. A wind power plant control system according to claim 8, characterised in that Further comprising: When the off-grid duration of the common power consumption device in the power grid is greater than 3 preset future time lengths, the common power consumption device is deleted, and the total power demand is updated according to the average periodic power consumption of the common power consumption device.

10. A wind turbine generator system control method characterized by, Comprise: Step 1: derive short-term wind information of power generation environment and short-term power generation of generator according to real-time information; Step 2: determine the power generation demand of the generator according to the total power demand of the power grid, and adjust the response speed of the generator to the short-term wind information; Step 3: determine the current wind energy conversion efficiency of the generator according to the real-time speed of the generator, and synchronously transmit the generated electric energy to the power grid; Step 4: determine the temporary power demand of the power grid according to the transmission feedback information of the power grid, and assist in adjusting the speed of the generator.

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