A wind turbine generator control system and method thereof

Abstract

This invention provides a wind turbine generator control system and method, comprising: deriving short-term wind information and short-term generator output based on real-time information; determining the generator output demand based on the total power demand of the grid; adjusting the generator's response speed to short-term wind information; determining the generator's current wind energy conversion efficiency based on the generator's real-time speed; synchronously transmitting the generated electricity to the grid; determining the grid's temporary power demand based on the grid's transmission feedback information; and adjusting the generator's speed as needed. This allows for prediction of short-term wind conditions, thereby controlling the generator to adjust its speed in advance to avoid voltage instability caused by wind speed fluctuations. Furthermore, it adjusts the generator's power generation operation according to the grid's power demand to avoid overload or inefficient operation.

Description

Technical Field

[0001] This invention relates to the field of generator control technology, and in particular to a wind turbine generator control system and method. Background Technology

[0002] Wind power generation is a renewable energy technology that generates electricity by driving a wind turbine. The turbine transfers its mechanical energy to a generator via a transmission system. The generator converts this mechanical energy into electrical energy through electromagnetic induction. The rotating blades drive a rotor, causing changes in the magnetic field and generating an electric current. This current is then regulated by an electrical control system to ensure stable voltage and frequency. The electricity is then transmitted to the power grid via transmission lines for residential and industrial use. Because wind power does not emit greenhouse gases or other pollutants, and wind is a plentiful resource, wind power is widely used in the power generation field, despite its high initial investment. However, wind power also has certain drawbacks, including: 1. The turbine speed depends on the wind speed, often leading to overload during strong winds and inefficient operation during weak winds. 2. Overload can affect other equipment in the power plant, potentially impacting the overall efficiency. 3. Frequent changes in wind speed can cause voltage instability. Currently, how to scientifically control the generator speed to ensure power generation while avoiding overload or inefficiency has become an urgent problem to be solved.

[0003] Therefore, the present invention provides a wind turbine generator control system and method thereof. Summary of the Invention

[0004] The present invention discloses a wind turbine generator control system and method, which can predict wind conditions in the short term, thereby controlling the generator to adjust its speed in advance to avoid voltage instability caused by wind speed fluctuations, and adjusting the generator's power generation operation according to the power demand of the power grid to avoid overload or inefficient operation.

[0005] This invention provides a wind turbine generator control system, comprising:

[0006] The monitoring and estimation module is used to deduce short-term wind information of the power generation environment and short-term power generation of the generator based on real-time information.

[0007] The generator set regulation module is used to determine the required power generation of the generator based on the total power demand of the power grid, and adjust the generator's response speed to the short-term wind information;

[0008] The power generation control module is used to determine the current wind energy conversion efficiency of the generator based on the real-time speed of the generator, and to synchronously transmit the generated electrical energy to the power grid.

[0009] The feedback application module is used to determine the temporary power demand of the power grid based on the transmission feedback information of the power grid, and to assist in adjusting the speed of the generator.

[0010] In one feasible approach

[0011] The monitoring and estimation module includes:

[0012] The information acquisition unit acquires the current power information corresponding to each generator, determines the current wind response parameters corresponding to each generator by combining the current wind information of the power generation environment, constructs the wind information stream of the power generation environment and the response parameter stream corresponding to each generator based on the current wind information at different times.

[0013] An information processing unit is used to acquire meteorological information of the power generation environment, combine the wind information stream to predict the short-term wind information of the power generation environment within a preset future time, and identify several similar response parameters related to the short-term wind information in each response parameter stream.

[0014] A power generation derivation unit is used to determine and display the short-term power generation of each generator within the preset future time period using the same type of response parameters.

[0015] In one feasible approach

[0016] The unit regulation module includes:

[0017] The task allocation unit is used to determine the minimum power generation of each generator in different preset power generation cycles based on the total power demand, generate the current power generation task list, and calculate the original power generation of the generator in the next preset cycle using the short-term power generation of each generator.

[0018] The adjustment preparation unit is used to issue a power generation instruction to each of the generators according to the power generation task list when the original total power generation is less than the minimum total power generation, and to construct a wind virtual scene of the power generation environment using the short-term wind information.

[0019] The power generation simulation unit is used to adjust the speed of the corresponding generator in the wind power virtual scenario using the generator, to obtain the response data of each generator at different speeds, and to perform time fusion and spatial fusion on the multi-dimensional data features of each response data to obtain several speed adjustment information corresponding to each generator.

[0020] The speed determination unit is used to determine the target speed of the generator based on the response data, identify the adjustment process of the generator from the current speed to the target speed in the corresponding speed adjustment information, and adjust the target speed numerically according to the adjustment time of the adjustment process to obtain the response speed corresponding to each generator.

[0021] In one feasible approach

[0022] Also includes:

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

[0024] 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.

[0025] The auxiliary process is used to adjust the target speed of the generator to the response speed.

[0026] In one feasible approach

[0027] The power generation control module includes:

[0028] The power generation monitoring unit is used to acquire the real-time rotation speed of each generator, deduce the current wind energy conversion efficiency of each generator in combination with the current wind information of the power generation environment, and calculate the current power generation of each generator.

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

[0030] The transmission execution unit is used to transform the electrical energy generated by the generator according to the power factor, transmit the transformed electrical energy to the power grid, boost / buck the transformed electrical energy according to the electrical energy receiving frequency, and transmit the electrical energy obtained by the power grid to the electrical energy storage space for storage.

[0031] In one feasible approach

[0032] Also includes:

[0033] The transmission monitoring unit is used to acquire the real-time output data corresponding to each generator and the real-time received data of the power grid to construct a transmission-reception data network, and to synchronously locate the real-time transmission position corresponding to each transformer power in the transmission-reception data network.

[0034] Based on the real-time received data, the real-time load characteristics and real-time power characteristics of the power grid are constructed, and the real-time load and real-time power corresponding to each real-time transmission location are determined.

[0035] Balance monitoring is performed on each of the real-time loads and each of the real-time power to determine several voltage anomaly locations and several frequency fluctuation locations contained in the transmission-reception data network.

[0036] The power grid is subjected to voltage stabilization compensation based on the voltage deviation corresponding to each of the voltage anomaly locations, and frequency regulation compensation based on the fluctuation value corresponding to each of the frequency fluctuation locations.

[0037] In one feasible approach

[0038] The feedback application module includes:

[0039] The power supply analysis unit is used to acquire real-time external power supply information of the power grid, identify newly connected power-consuming devices in the power grid, collect the instantaneous power consumption of the newly connected power-consuming devices, and deduce the estimated energy consumption of the newly connected power-consuming devices in the next preset future time period.

[0040] The feedback analysis unit is used to determine the temporary power demand of the power grid based on the estimated energy consumption and power transmission loss, and to construct a temporary power generation command to be transmitted to the target generator with the lowest real-time speed.

[0041] A temporary adjustment unit is used to determine the target speed of the target generator based on the short-term wind information and the temporary power generation command, and adjust the speed of the target generator to the target speed.

[0042] In one feasible approach

[0043] Also includes:

[0044] When the duration of the newly connected power-consuming device in the power grid exceeds three preset future durations, the newly connected power-consuming device is regarded as a frequently used power-consuming device, and the total power demand is updated using the temporary power demand.

[0045] In one feasible approach

[0046] Also includes:

[0047] When the outage duration of commonly used power-consuming equipment in the power grid exceeds three preset future durations, the commonly used power-consuming equipment is deleted, and the total power demand is updated according to the average periodic power consumption corresponding to the commonly used power-consuming equipment.

[0048] This invention provides a wind turbine generator control method, comprising:

[0049] Step 1: Derive short-term wind information and short-term power generation of the generator based on real-time information;

[0050] Step 2: Determine the required power generation of the generator based on the total power demand of the power grid, and adjust the generator's response speed to the short-term wind information;

[0051] Step 3: Determine the current wind energy conversion efficiency of the generator based on its real-time rotational speed, and synchronously transmit the generated electricity to the power grid;

[0052] Step 4: Determine the temporary power demand of the power grid based on the transmission feedback information of the power grid, and make auxiliary adjustments to the speed of the generator.

[0053] The beneficial effects of the above technical solution are as follows: To achieve efficient wind energy utilization, automatic adjustment, stable operation, and high energy efficiency, while ensuring stable power output and avoiding voltage instability due to wind speed fluctuations, the short-term wind information and generator power generation are first derived based on real-time information of the power generation environment. Then, the required power generation is determined based on the total power demand of the grid. Power generation is then carried out by adjusting the generator's response speed. 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 power to the grid for use. To better cooperate with the grid and avoid power outages, the generator speed is finely adjusted when the grid's temporary power demand increases to respond to the grid's needs. In this way, the original power generation can be guaranteed, and the increased power generation can be responded to temporarily without affecting the normal operation of the generator and the grid. This method can meet the grid's power demand and respond to temporary power demand in a timely manner, satisfying the operation of various wind turbine generator sets and improving the overall efficiency of the wind power industry.

[0054] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0055] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0056] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0057] Figure 1 This is a schematic diagram of the composition of a wind turbine generator control system according to an embodiment of the present invention;

[0058] Figure 2 This is a schematic diagram illustrating the workflow of a wind turbine generator control method according to an embodiment of the present invention. Detailed Implementation

[0059] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0060] Example 1:

[0061] This embodiment provides a wind turbine generator control system, such as Figure 1 As shown, it includes:

[0062] The monitoring and estimation module is used to deduce short-term wind information of the power generation environment and short-term power generation of the generator based on real-time information.

[0063] The generator set regulation module is used to determine the required power generation of the generator based on the total power demand of the power grid, and adjust the generator's response speed to the short-term wind information;

[0064] The power generation control module is used to determine the current wind energy conversion efficiency of the generator based on the real-time speed of the generator, and to synchronously transmit the generated electrical energy to the power grid.

[0065] The feedback application module is used to determine the temporary power demand of the power grid based on the transmission feedback information of the power grid, and to assist in adjusting the speed of the generator.

[0066] In this example, short-term wind information refers to the result of inferring the wind conditions of this stage in the future based on the current conditions of the power generation environment. The "short-term" refers to the duration set in advance by the management personnel, which is generally 3 hours.

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

[0068] In this example, the required power generation represents the amount of electricity that needs to be supplied to the power grid;

[0069] In this example, the response speed represents the speed at which the generator should operate under the influence of short-term wind forces;

[0070] In this example, the current wind energy conversion efficiency represents the efficiency with which the generator converts wind energy into electrical energy;

[0071] In this example, temporary electricity demand means that the power grid's demand for electricity temporarily increases due to various reasons;

[0072] In this example, auxiliary adjustment refers to the process of making minor adjustments to the engine speed based on the temporary power 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: To achieve efficient wind energy utilization, automatic adjustment, stable operation, and high energy efficiency, while ensuring stable power output and avoiding voltage instability due to wind speed fluctuations, the short-term wind information and generator power generation are first derived based on real-time information of the power generation environment. Then, the required power generation is determined based on the total power demand of the grid. Power generation is then carried out by adjusting the generator's response speed. 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 power to the grid for use. To better cooperate with the grid and avoid power outages, the generator speed is finely adjusted when the grid's temporary power demand increases to respond to the grid's needs. In this way, the original power generation can be guaranteed, and the increased power generation can be responded to temporarily without affecting the normal operation of the generator and the grid. This method can meet the grid's power demand and respond to temporary power demand in a timely manner, satisfying the operation of various wind turbine generator sets and improving the overall efficiency of the wind power industry.

[0075] Example 2:

[0076] Based on Embodiment 1, the monitoring and estimation module of the wind turbine generator control system includes:

[0077] The information acquisition unit acquires the current power information corresponding to each generator, determines the current wind response parameters corresponding to each generator by combining the current wind information of the power generation environment, constructs the wind information stream of the power generation environment and the response parameter stream corresponding to each generator based on the current wind information at different times.

[0078] An information processing unit is used to acquire meteorological information of the power generation environment, combine the wind information stream to predict the short-term wind information of the power generation environment within a preset future time, and identify several similar response parameters related to the short-term wind information in each response parameter stream.

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

[0080] In this example, the current power information represents the power output of the generator under the current operating conditions;

[0081] In this example, the current wind response parameters represent the parameters of the generator's rotational speed when affected by wind.

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

[0083] In this example, the response parameter stream represents the result of sorting the current response parameters of a generator at different times over time.

[0084] In this example, the wind information flow represents the result of sorting the wind information of the power generation environment at different times by time.

[0085] In this example, similar response parameters refer to parameters in the response parameter stream that have a similarity of more than 90% with short-term wind information.

[0086] The working principle and beneficial effects of the above technical solution are as follows: In order to ensure voltage stability, short-term wind speed prediction is performed, and the unit operation strategy is adjusted in advance to achieve efficient wind energy utilization. First, based on the current power information of the generator and the current wind response parameters of the generator to the wind environment, the corresponding information flow and parameter flow are constructed. Then, based on meteorological and wind information, the short-term wind information of the power generation environment is predicted. Then, based on the power generation corresponding to the same type of response parameters related to the short-term wind information in the parameter flow, the short-term power generation of the generator in the future is determined. In this way, the generator's operating state can be adjusted in advance according to short-term wind changes, so as to stabilize the voltage.

[0087] Example 3:

[0088] Based on Embodiment 1, the wind turbine generator control system, wherein the generator adjustment module includes:

[0089] The task allocation unit is used to determine the minimum power generation of each generator in different preset power generation cycles based on the total power demand, generate the current power generation task list, and calculate the original power generation of the generator in the next preset cycle using the short-term power generation of each generator.

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

[0091] The power generation simulation unit is used to adjust the speed of the corresponding generator in the wind power virtual scenario using the generator, to obtain the response data of each generator at different speeds, and to perform time fusion and spatial fusion on the multi-dimensional data features of each response data to obtain several speed adjustment information corresponding to each generator.

[0092] The speed determination unit is used to determine the target speed of the generator based on the response data, identify the adjustment process of the generator from the current speed to the target speed in the corresponding speed adjustment information, and adjust the target speed numerically according to the adjustment time of the adjustment process to obtain the response speed corresponding to each generator.

[0093] In this example, the preset power generation cycle means that power generation takes 30 minutes;

[0094] In this example, the power generation task list represents a summary of the tasks that guide each generator to generate electricity;

[0095] In this example, the original power generation represents the power generation produced by the generator without adjusting its speed;

[0096] In this example, the wind power virtual scene represents a virtual scene created in virtual space that has the same wind conditions as the power generation environment;

[0097] In this example, multidimensional data features represent the characteristics of the response data in the time dimension and the characteristics in the spatial dimension;

[0098] In this example, the speed adjustment information indicates the amount of data and method by which the generator speed needs to be adjusted;

[0099] In this example, the target speed represents the engine speed after the speed adjustment is completed.

[0100] The working principle and beneficial effects of the above technical solution are as follows: By determining the minimum power generation of generators in different preset power generation cycles based on the total power demand of the power grid, a corresponding power generation task list is constructed. Furthermore, the original power generation in the next preset cycle is derived based on the short-term power generation of the generators. When the total power generation of all generators is insufficient, a corresponding power generation instruction is issued to each generator according to the power generation task list. This allows for simultaneous issuance of instructions to multiple generators, allocating tasks to each generator in a short time. Simultaneously, a virtual wind power scenario for power generation is constructed, in which the generator speed is adjusted. Based on the generator's response data at different speeds, the target speed of the generator is determined, and its speed is adjusted accordingly. This method not only enables rapid speed adjustment but also clarifies the task of each generator, helping managers to observe the generator's working status at any time. Multiple generators work closely together to complete the power generation work of the power grid.

[0101] Example 4:

[0102] Based on Embodiment 3, the wind turbine generator control system further includes:

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

[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 auxiliary process is used to adjust the target speed of the generator to the response speed.

[0106] The working principle and beneficial effects of the above technical solution are as follows: the engine adjustment process is used to determine whether the engine has been adjusted to the target speed, and then auxiliary adjustments are made to further ensure that the engine has been adjusted to the target speed.

[0107] Example 5:

[0108] Based on Embodiment 1, the wind turbine generator control system, wherein the power generation control module includes:

[0109] The power generation monitoring unit is used to acquire the real-time rotation speed of each generator, deduce the current wind energy conversion efficiency of each generator in combination with the current wind information of the power generation environment, and calculate the current power generation of each generator.

[0110] A power grid configuration unit is used to configure a corresponding power receiving frequency for the power grid according to the wind energy conversion efficiency, determine the power factor between each generator and the power grid according to the power transmission distance between each generator and the power grid, and determine the power storage space of the power grid according to the current power generation.

[0111] The transmission execution unit is used to transform the electrical energy generated by the generator according to the power factor, transmit the transformed electrical energy to the power grid, boost / buck the transformed electrical energy according to the electrical energy receiving frequency, and transmit the electrical energy obtained by the power grid to the electrical energy storage space for storage.

[0112] In this example, the power receiving frequency represents the frequency at which the power grid receives electrical energy generated by the generator;

[0113] In this example, the power transmission distance represents the distance between the generator and the power grid;

[0114] In this example, the power factor represents the ratio between the actual amount of electricity transmitted to the grid and the original amount of electricity generated by the generator. Since energy loss occurs during transmission, the actual amount of electricity transmitted to the grid is different from the original amount of electricity generated by the generator.

[0115] In this example, when the voltage of the transformer power is lower than the grid voltage, the transformer power is boosted; otherwise, the transformer power is de-energized.

[0116] The working principle and beneficial effects of the above technical solution are as follows: By deriving the current wind energy conversion efficiency of the generator based on the real-time speed of the generator and the current wind information of the power generation environment, the current power generation of the generator can be calculated. Managers can check the power generation remotely or locally at any time. In order to improve power supply efficiency and power quality, the power grid's power receiving frequency, power factor, and power storage space are set in advance. Then, the voltage generated by the generator is transformed before being transmitted to the power grid. Finally, the power is transmitted to the power grid's storage space through step-up or step-down processing. In this way, the power supply of the generator can be guaranteed, and the power can be transmitted to the power grid stably and continuously, ensuring the power grid's power demand.

[0117] Example 6:

[0118] Based on Embodiment 5, the wind turbine generator control system further includes:

[0119] The transmission monitoring unit is used to acquire the real-time output data corresponding to each generator and the real-time received data of the power grid to construct a transmission-reception data network, and to synchronously locate the real-time transmission position corresponding to each transformer power in the transmission-reception data network.

[0120] Based on the real-time received data, the real-time load characteristics and real-time power characteristics of the power grid are constructed, and the real-time load and real-time power corresponding to each real-time transmission location are determined.

[0121] Balance monitoring is performed on each of the real-time loads and each of the real-time power to determine several voltage anomaly locations and several frequency fluctuation locations contained in the transmission-reception data network.

[0122] The power grid is subjected to voltage stabilization compensation based on the voltage deviation corresponding to each of the voltage anomaly locations, and frequency regulation compensation based on the fluctuation value corresponding to each of the frequency fluctuation locations.

[0123] In this example, the transmit-receive data network represents a data network consisting of the relationship between real-time output data and real-time received data;

[0124] In this example, the real-time transmission location represents the real-time location of the transformer's electrical energy during the transmission process;

[0125] In this example, balance monitoring means deriving a numerical proportional balance between real-time load and implemented power;

[0126] In this example, voltage regulation compensation refers to the process of keeping the voltage of the power grid within a stable range, while frequency regulation compensation refers to 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 solution are as follows: By using real-time output data and real-time received data to establish a transmission-reception data network, the real-time transmission location of transformer power is located in the network. Then, the balance between the real-time load and the implemented power of the power grid is monitored, the voltage anomaly location and frequency fluctuation location in the power grid are determined, and voltage stabilization compensation and frequency regulation compensation are performed to further ensure the stability of the power grid.

[0128] Example 7:

[0129] Based on Embodiment 1, the feedback application module of the wind turbine generator control system includes:

[0130] The power supply analysis unit is used to acquire real-time external power supply information of the power grid, identify newly connected power-consuming devices in the power grid, collect the instantaneous power consumption of the newly connected power-consuming devices, and deduce the estimated energy consumption of the newly connected power-consuming devices in the next preset future time period.

[0131] The feedback analysis unit is used to determine the temporary power demand of the power grid based on the estimated energy consumption and power transmission loss, and to construct a temporary power generation command to be transmitted to the target generator with the lowest real-time speed.

[0132] A temporary adjustment unit is used to determine the target speed of the target generator based on the short-term wind information and the temporary power generation command, and adjust the speed of the target generator to the target speed.

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

[0134] In this example, the temporary power requirement refers to the power required by the newly connected power-consuming device.

[0135] The working principle and beneficial effects of the above technical solution are as follows: By analyzing the real-time external power supply information of the power grid, the newly connected power-consuming equipment in the power grid is identified. Based on its instantaneous power consumption, its estimated energy consumption is predicted, and the temporary power demand of the power grid is determined. Thus, the real-time minimum speed of the generator is derived. Finally, based on short-term wind information and temporary power generation instructions, the target speed of the generator is determined. Finally, the generator is adjusted to the corresponding target speed, which realizes that temporary power supply ensures the stability of the power grid and also ensures that the power grid can achieve continuous power supply.

[0136] Example 8:

[0137] Based on Embodiment 7, the wind turbine generator control system further includes:

[0138] When the duration of the newly connected power-consuming device in the power grid exceeds three preset future durations, the newly connected power-consuming device is regarded as a frequently used power-consuming device, and the total power demand is updated using the temporary power demand.

[0139] The working principle and beneficial effects of the above technical solution are as follows: When the connected power-consuming equipment is a commonly used power-consuming equipment, the total power demand of the power grid is re-determined to ensure the power supply of the power grid.

[0140] Example 9:

[0141] Based on Embodiment 8, the wind turbine generator control system further includes:

[0142] When the outage duration of commonly used power-consuming equipment in the power grid exceeds three preset future durations, the commonly used power-consuming equipment is deleted, and the total power demand is updated according to the average periodic power consumption corresponding to the commonly used power-consuming equipment.

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

[0144] Example 10:

[0145] This embodiment provides a wind turbine generator control method, such as... Figure 2 As shown, it includes:

[0146] Step 1: Derive short-term wind information and short-term power generation of the generator based on real-time information;

[0147] Step 2: Determine the required power generation of the generator based on the total power demand of the power grid, and adjust the generator's response speed to the short-term wind information;

[0148] Step 3: Determine the current wind energy conversion efficiency of the generator based on its real-time rotational speed, and synchronously transmit the generated electricity to the power grid;

[0149] Step 4: Determine the temporary power demand of the power grid based on the transmission feedback information of the power grid, and make auxiliary adjustments to the speed of the generator.

[0150] In this example, short-term wind information refers to the result of inferring the wind conditions of this stage in the future based on the current conditions of the power generation environment. The "short-term" refers to the duration set in advance by the management personnel, which is generally 3 hours.

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

[0152] In this example, the required power generation represents the amount of electricity that needs to be supplied to the power grid;

[0153] In this example, the response speed represents the speed at which the generator should operate under the influence of short-term wind forces;

[0154] In this example, the current wind energy conversion efficiency represents the efficiency with which the generator converts wind energy into electrical energy;

[0155] In this example, temporary electricity demand means that the power grid's demand for electricity temporarily increases due to various reasons;

[0156] In this example, auxiliary adjustment refers to the process of making minor adjustments to the engine speed based on 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: To achieve efficient wind energy utilization, automatic adjustment, stable operation, and high energy efficiency, while ensuring stable power output and avoiding voltage instability due to wind speed fluctuations, the short-term wind information and generator power generation are first derived based on real-time information of the power generation environment. Then, the required power generation is determined based on the total power demand of the grid. Power generation is then carried out by adjusting the generator's response speed. 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 power to the grid for use. To better cooperate with the grid and avoid power outages, the generator speed is finely adjusted when the grid's temporary power demand increases to respond to the grid's needs. In this way, the original power generation can be guaranteed, and the increased power generation can be responded to temporarily without affecting the normal operation of the generator and the grid. This method can meet the grid's power demand and respond to temporary power demand in a timely manner, satisfying the operation of various wind turbine generator sets and improving the overall efficiency of the wind power industry.

[0159] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A wind turbine generator control system, characterized in that, include: The monitoring and estimation module is used to deduce short-term wind information of the power generation environment and short-term power generation of the generator based on real-time information. The generator set regulation module is used to determine the required power generation of the generator based on the total power demand of the power grid, and adjust the generator's response speed to the short-term wind information; The power generation control module is used to determine the current wind energy conversion efficiency of the generator based on the real-time speed of the generator, and to synchronously transmit the generated electrical energy to the power grid. The feedback application module is used to determine the temporary power demand of the power grid based on the transmission feedback information of the power grid, and to assist in adjusting the speed of the generator; The unit regulation module includes: The task allocation unit is used to determine the minimum power generation of each generator in different preset power generation cycles based on the total power demand, generate the current power generation task list, and calculate the original power generation of the generator in the next preset cycle using the short-term power generation of each generator. The adjustment preparation unit is used to issue a power generation instruction to each of the generators according to the power generation task list when the original total power generation is less than the minimum total power generation, and to construct a wind virtual scene of the power generation environment using the short-term wind information. The power generation simulation unit is used to adjust the speed of the corresponding generator in the wind power virtual scenario using the generator, to obtain the response data of each generator at different speeds, and to perform time fusion and spatial fusion on the multi-dimensional data features of each response data to obtain several speed adjustment information corresponding to each generator. The speed determination unit is used to determine the target speed of the generator based on the response data, identify the adjustment process of the generator from the current speed to the target speed in the corresponding speed adjustment information, and adjust the target speed numerically according to the adjustment time of the adjustment process to obtain the response speed corresponding to each generator.

2. The wind turbine generator control system as described in claim 1, characterized in that, The monitoring and estimation module includes: The information acquisition unit acquires the current power information corresponding to each generator, determines the current wind response parameters corresponding to each generator by combining the current wind information of the power generation environment, constructs the wind information stream of the power generation environment and the response parameter stream corresponding to each generator based on the current wind information at different times. An information processing unit is used to acquire meteorological information of the power generation environment, combine the wind information stream to predict the short-term wind information of the power generation environment within a preset future time, and identify several similar response parameters related to the short-term wind information in each response parameter stream. A power generation derivation unit is used to determine and display the short-term power generation of each generator within the preset future time period using the same type of response parameters.

3. A wind turbine generator control system as described in claim 1, characterized in that, Also includes: According to the adjustment process corresponding to each generator, each generator is adjusted from the current speed to the corresponding target speed; 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. The auxiliary process is used to adjust the target speed of the generator to the response speed.

4. A wind turbine generator control system as described in claim 1, characterized in that, The power generation control module includes: The power generation monitoring unit is used to acquire the real-time rotation speed of each generator, deduce the current wind energy conversion efficiency of each generator in combination with the current wind information of the power generation environment, and calculate the current power generation of each generator. A power grid configuration unit is used to configure a corresponding power receiving frequency for the power grid according to the wind energy conversion efficiency, determine the power factor between each generator and the power grid according to the power transmission distance between each generator and the power grid, and determine the power storage space of the power grid according to the current power generation. The transmission execution unit is used to transform the electrical energy generated by the generator according to the power factor, transmit the transformed electrical energy to the power grid, boost / buck the transformed electrical energy according to the electrical energy receiving frequency, and transmit the electrical energy obtained by the power grid to the electrical energy storage space for storage.

5. A wind turbine generator control system as described in claim 4, characterized in that, Also includes: The transmission monitoring unit is used to acquire the real-time output data corresponding to each generator and the real-time received data of the power grid to construct a transmission-reception data network, and to synchronously locate the real-time transmission position corresponding to each transformer power in the transmission-reception data network. Based on the real-time received data, the real-time load characteristics and real-time power characteristics of the power grid are constructed, and the real-time load and real-time power corresponding to each real-time transmission location are determined. Balance monitoring is performed on each of the real-time loads and each of the real-time power to determine several voltage anomaly locations and several frequency fluctuation locations contained in the transmission-reception data network. The power grid is subjected to voltage stabilization compensation based on the voltage deviation corresponding to each of the voltage anomaly locations, and frequency regulation compensation based on the fluctuation value corresponding to each of the frequency fluctuation locations.

6. A wind turbine generator control system as described in claim 1, characterized in that, The feedback application module includes: The power supply analysis unit is used to acquire real-time external power supply information of the power grid, identify newly connected power-consuming devices in the power grid, collect the instantaneous power consumption of the newly connected power-consuming devices, and deduce the estimated energy consumption of the newly connected power-consuming devices in the next preset future time period. The feedback analysis unit is used to determine the temporary power demand of the power grid based on the estimated energy consumption and power transmission loss, and to construct a temporary power generation command to be transmitted to the target generator with the lowest real-time speed. A temporary adjustment unit is used to determine the target speed of the target generator based on the short-term wind information and the temporary power generation command, and adjust the speed of the target generator to the target speed.

7. A wind turbine generator control system as described in claim 6, characterized in that, Also includes: When the duration of the newly connected power-consuming device in the power grid exceeds three preset future durations, the newly connected power-consuming device is regarded as a frequently used power-consuming device, and the total power demand is updated using the temporary power demand.

8. A wind turbine generator control system as described in claim 7, characterized in that, Also includes: When the outage duration of commonly used power-consuming equipment in the power grid exceeds three preset future durations, the commonly used power-consuming equipment is deleted, and the total power demand is updated according to the average periodic power consumption corresponding to the commonly used power-consuming equipment.

9. A control method for a wind turbine generator set, characterized in that, include: Step 1: Derive short-term wind information and short-term power generation of the generator based on real-time information; Step 2: Determine the required power generation of the generator based on the total power demand of the power grid, and adjust the generator's response speed to the short-term wind information; Step 3: Determine the current wind energy conversion efficiency of the generator based on its real-time rotational speed, and synchronously transmit the generated electricity to the power grid; Step 4: Determine the temporary power demand of the power grid based on the transmission feedback information of the power grid, and make auxiliary adjustments to the speed of the generator; Step 2 includes: Based on the total power demand, the minimum power generation of each generator in different preset power generation cycles is determined to generate the current power generation task list. The original power generation of each generator in the next preset cycle is calculated using the short-term power generation of each generator. When the total original power generation is less than the minimum total power generation, a power generation instruction is issued to each of the generators according to the power generation task list, and a wind virtual scene of the power generation environment is constructed using the short-term wind information. In the virtual wind scene, the generator is used to adjust the speed of the corresponding generator to obtain the response data of each generator at different speeds. The multidimensional data features of each response data are fused in time and in space to obtain several speed adjustment information corresponding to each generator. The target speed of the generator is determined based on the response data. The adjustment process of the generator from the current speed to the target speed is identified in the corresponding speed adjustment information. The target speed is numerically adjusted according to the adjustment time of the adjustment process to obtain the response speed corresponding to each generator.

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