WO2022188392A1 - 用于风力发电机组的控制方法及控制装置 - Google Patents
用于风力发电机组的控制方法及控制装置 Download PDFInfo
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- WO2022188392A1 WO2022188392A1 PCT/CN2021/119597 CN2021119597W WO2022188392A1 WO 2022188392 A1 WO2022188392 A1 WO 2022188392A1 CN 2021119597 W CN2021119597 W CN 2021119597W WO 2022188392 A1 WO2022188392 A1 WO 2022188392A1
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000004044 response Effects 0.000 claims abstract description 50
- 230000009467 reduction Effects 0.000 claims abstract description 27
- 230000008859 change Effects 0.000 claims description 24
- 238000011217 control strategy Methods 0.000 claims description 18
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- 238000010200 validation analysis Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
- F03D7/043—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic
- F03D7/045—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic with model-based controls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/028—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
- F03D7/0292—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power to reduce fatigue
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
- F03D17/001—Inspection
- F03D17/003—Inspection characterised by using optical devices, e.g. lidar or cameras
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0276—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
- F03D7/043—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
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- F05B2270/322—Control parameters, e.g. input parameters the detection or prediction of a wind gust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
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- F05B2270/40—Type of control system
- F05B2270/404—Type of control system active, predictive, or anticipative
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/80—Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
- F05B2270/804—Optical devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Definitions
- the present application relates to the technical field of wind power generation, and in particular, to a control method and a control device for a wind power generating set.
- the unit control strategies provided for these complex wind conditions have poor adaptability and frequent unit failures, making it difficult to achieve refined energy optimization management and optimal power generation under the premise of ensuring unit safety.
- the purpose of the present application is to provide a control method and a control device for a wind turbine.
- a control method for a wind power generating set comprising: acquiring inflow wind information of the wind power generating set; Whether there is a sector with complex wind conditions; in response to the existence of a sector with complex wind conditions around the wind generator set, perform feedforward load shedding control on the wind generator set according to the complex wind conditions.
- a control device for a wind turbine comprising: a wind condition prediction unit configured to: acquire incoming wind information of the wind turbine; a sector identification unit , is configured to: determine whether there is a sector with complex wind conditions around the wind turbine according to the acquired inflow wind information; the load shedding control unit is configured to: in response to the presence of complex wind around the wind turbine According to the complex wind conditions, feedforward load shedding control is performed on the wind turbine generator set.
- a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the aforementioned control method for a wind turbine.
- a computer device comprising: a processor; a memory storing a computer program, when the computer program is executed by the processor, the aforementioned computer program for wind power is implemented.
- the control method of the generator set is provided.
- the control method and control device for a wind power generating set can enable the wind power generating set to perform automatic self-control for various complex wind conditions without adding new investment (such as additional hardware equipment).
- FIG. 1 shows a schematic diagram of sector-based wind condition distribution for a wind turbine according to an exemplary embodiment of the present application
- FIG. 2 shows a schematic diagram of a lidar wind measurement system for a wind turbine according to an exemplary embodiment of the present application
- FIG. 3 shows a flowchart of a control method for a wind turbine according to an exemplary embodiment of the present application
- FIG. 4 shows a schematic diagram of the wind speed change speed of the incoming wind in a duration period according to an exemplary embodiment of the present application
- Figure 5 shows a schematic diagram of the wind shear factor of incoming wind over a duration period according to an exemplary embodiment of the present application
- FIG. 6 shows a structural block diagram of a control device for a wind turbine according to an exemplary embodiment of the present application.
- FIG. 7 shows a schematic diagram of a system architecture for a wind turbine according to an exemplary embodiment of the present application
- Figure 8 shows a schematic diagram of a wind turbine according to an exemplary embodiment of the present application.
- the concept of the present application is that the wind turbine will bear loads caused by various complex wind conditions (such as excessive turbulence intensity, sudden change in wind speed, sudden change in wind direction, etc.) while capturing wind energy.
- the induced loads are also different. Therefore, before the complex wind conditions reach the wind turbines, different feedforward load reduction strategies can be implemented for the running wind turbines for different complex wind conditions to ensure that the wind turbines are in It can also operate safely and stably in complex terrain areas, and ensure the overall power generation of the unit to the greatest extent.
- FIG. 1 shows a schematic diagram 100 of sector-based distribution of wind conditions for a wind turbine according to an exemplary embodiment of the present application.
- FIG. 2 shows a schematic diagram 200 of a lidar wind measurement system for a wind turbine according to an exemplary embodiment of the present application.
- a lidar wind measurement system 201 for a wind turbine can be arranged on the top of the nacelle of the wind turbine, and the front and surrounding areas of the wind turbine can be accurately measured by the lidar wind measurement system
- the incoming wind information including, but not limited to, wind speed, wind direction, turbulence and other information.
- the characteristic wind condition recognition algorithm can be used to capture complex wind conditions in advance, so that the wind turbine can respond positively, thereby effectively reducing the negative impact of various complex wind conditions on the wind turbine, and further improving the safety of the wind turbine. and stability.
- FIG. 3 shows a flowchart 300 of a control method for a wind turbine according to an exemplary embodiment of the present application.
- control method shown in FIG. 3 may include the following steps:
- step 310 the incoming wind information of the wind turbine may be obtained.
- the forward wind condition information around the wind turbine can be detected by a lidar wind measurement system (as shown in FIG. 2 ), and the incoming wind information of the wind turbine can be derived from the detected forward wind information.
- the flow wind information may include, but is not limited to, various wind parameter information such as wind speed, wind direction, and wind speed status. In this way, the incoming wind information of the wind turbine in all directions can be predicted before the incoming wind blows to the impeller of the wind turbine, so as to provide accurate and reliable data basis for the subsequent feedforward load shedding control. .
- step 320 it may be determined whether there is a sector with complex wind conditions around the wind turbine according to the acquired inflow wind information.
- the value of the wind condition characteristic of the incoming wind when the wind turbine is subjected to the maximum load can be selected as the value of the wind condition characteristic of the incoming wind.
- the value of the wind condition characteristic corresponding to the vertex moment of the envelope of the nacelle acceleration or the relative position load can be selected.
- the value that is the wind condition characteristic of the incoming wind is not limited to this, for example, the value of the wind condition characteristic corresponding to the mean value moment of the wind turbine under load may also be selected as the value of the wind condition characteristic of the incoming wind.
- the wind condition characteristics may include, but are not limited to, one or a combination of the following characteristics: the turbulence intensity of the incoming wind in the duration period, the wind speed change speed of the incoming wind in the duration period, the incoming wind in the duration period The wind direction twist angle in the segment, the wind shear factor of the incoming wind in the duration segment, the wind direction change speed of the incoming wind in the duration segment, and the wind direction fluctuation amplitude of the incoming wind in the duration segment.
- wind condition characteristics are only exemplary, and the present application is not limited thereto, and other wind condition characteristics, such as leeward, etc., may also be used as required.
- a correlation coefficient between each of the plurality of wind condition characteristics and the load ie, The influence weight of each wind condition feature on the load
- the wind condition feature whose correlation coefficient among the multiple wind condition features is greater than a predetermined threshold is identified as a complex wind condition (that is, the correlation coefficient among the multiple wind condition features is identified as a complex wind condition
- the larger several wind conditions are characterized as complex wind conditions).
- the wind condition feature with the largest correlation coefficient among the multiple wind condition characteristics can also be identified as a complex wind condition. In this regard, this application has no limitation.
- Wind turbines are prone to various failures under these complex wind conditions, such as increased nacelle acceleration, overspeed of the unit, and blade sweeping.
- the wind turbine After identifying the complex wind conditions, the wind turbine can be divided into several sectors along the surrounding 360° direction (as shown in Figure 1), and then based on the inflow direction of the complex wind conditions, it is determined whether there are complex wind turbines around the wind turbine. Sector of wind conditions.
- FIG. 4 shows a schematic diagram 400 of the speed of change of the wind speed of the incoming wind in a duration period according to an exemplary embodiment of the present application.
- the wind speed change speed of the incoming wind in the duration period t 0 -t 1 to t 0 (ie, the change amount of the sudden change in wind speed) can be determined by the duration period t 0 -t 1 to t 0 shown in FIG. 4 . It is characterized by the integral area 401 between the minimum and maximum wind speed within. When the integrated area 401 exceeds the threshold, the sudden change of wind speed shown in FIG. 4 can be regarded as a complex wind condition.
- FIG. 5 shows a schematic diagram 500 of the wind shear factor of incoming wind over a duration period according to an exemplary embodiment of the present application.
- the wind shear factor of the incoming wind in the duration t 0 -t 1 to t 0 can be simulated by two wind speeds at different heights in the duration t 0 -t 1 to t 0 shown in FIG. 5 It is characterized by the integrated area 501 between the contour lines (ie, the change in wind shear mutation). When the integrated area 501 exceeds a threshold (or is a negative value), the sudden change in wind shear shown in FIG. 5 can be regarded as a complex wind condition.
- the turbulent intensity of the incoming wind over a duration can be characterized by the ratio of the standard deviation of the wind speed to the mean wind speed over the duration (ie, the amount of change in the turbulent intensity abrupt change).
- the ratio exceeds a threshold, the sudden change in turbulence intensity can be regarded as a complex wind condition.
- the wind direction reversal angle of the incoming wind in the duration period can be determined by the extreme value difference or standard deviation between the maximum and minimum value of the wind direction time series in the duration period (ie, the change of the wind direction abrupt change quantity) to characterize.
- the extreme value difference or standard deviation exceeds the threshold, the sudden change in wind direction can be regarded as a complex wind condition.
- feedforward load shedding control may be performed on the wind turbine according to the complex wind conditions in response to the existence of a sector with complex wind conditions around the wind turbine.
- the feedforward load shedding control may include, but is not limited to, one or a combination of the following operations: increasing the pitch angle of the wind turbine, increasing the pitch speed of the wind turbine, decreasing the wind turbine's pitch angle generator speed and reduce the generator torque of the wind turbine.
- These load reduction control operations can effectively reduce the increased unit load due to the above-mentioned complex wind conditions.
- feedforward load shedding operation manners are merely exemplary, and the present application is not limited thereto, and other feedforward load shedding operation manners may also be adopted as required.
- complex wind response parameters such as, but not limited to, pitch angle, pitch speed, generator speed, and generator torque, etc.
- the optimal load shedding control strategy included in the wind condition shedding model and set for the response parameters of each complex wind condition can be defined according to historical load shedding operation data, or can be defined by using neural network training.
- the data of the historical load reduction operation of the wind turbine and the data of each load reduction operation are obtained by training.
- the wind load shedding model constructed by neural network training can make the load shedding control of wind turbines more accurate and intelligent, thereby effectively reducing unit failures caused by various complex wind conditions (even extreme wind conditions). and shutdown, reduce the resulting loss of power generation, and improve the adaptability of wind turbines to the natural environment (especially, complex terrain).
- an enhanced dynamic fuzzy neural network model can be used, and its implementation process is as follows:
- Step 1 confirm the fuzzy set.
- the concept of fuzzy set is generalized on the basis of general set, and it is also composed of some elements, but these elements are described by fuzzy language, which can be described by three fuzzy language values.
- a membership function for example, a Gaussian membership function
- the membership function is to measure the degree of membership of a certain exact quantity to a certain fuzzy language value.
- the output value of the membership function can be in the interval [0,1], and the degree of uncertainty can be converted into a mathematical expression through the membership function.
- Step III the fuzzy rules can be confirmed.
- the TSK model can be used here, the output of which is an exact quantity and is determined by all inputs to the system (eg, radar wind direction, radar wind speed, turbulence intensity, wind shear, wind twist, pitch angle, acceleration in the X direction and acceleration in the Y direction, etc. information), and its coefficients are equivalent to different weight coefficients.
- Step IV the dynamic fuzzy neural network based on ellipse can be used.
- the increase or decrease of the fuzzy rules can be judged by predicting the systematic deviation between the control signal and the actual signal and the mapping range of the Gaussian accommodating boundary, and normalizing through the ellipse basis.
- the fuzzy rules are pruned by the least squares method that minimizes the systematic deviation.
- step V the optimal load shedding control function can be output.
- the parameter (function) of the optimal load shedding control is the feedforward pitch rate under complex wind conditions.
- the enhanced dynamic fuzzy neural network model adopted above is only exemplary, and the present application is not limited thereto, and other enhanced neural network models or other different types of neural network models may also be used as required.
- the upper limit of the output power of the wind turbine may also be limited in response to the absence of a response parameter of the complex wind condition matching the complex wind condition in the wind condition derating model.
- the upper limit of power can be defined by parameters, and can also be set as the power corrected according to different wind speeds.
- the wind turbine can be controlled to perform the feedforward load shedding control operation described above based on the output power upper limit, such as, but not limited to, increasing the pitch angle of the wind turbine.
- the feedforward load shedding control (also called power limiting operation) performed by limiting the upper limit of the output power of the wind turbine can also be used as the optimal load shedding control set for the response parameters of complex wind conditions
- the strategy is recorded into the wind derating model.
- the time series data before and after the feedforward load shedding control performed by limiting the upper limit of the output power of the wind turbine can be used as a sample for learning the optimal load shedding control strategy for complex wind conditions, and the accumulated samples are learned through neural network training, and the It is recorded into the wind derating model along with the response parameters matched to the complex wind conditions.
- the initial state of the optimal load shedding control parameter flag can be defaulted to False (that is, the wind turbine has not obtained the parameters of the optimal load shedding control), and the complex wind turbine before the power limiting operation is executed
- the response parameters of the wind condition are output to the wind load reduction model for training, and then the wind load reduction model is divided into a test set and a validation set according to certain rules to select a multi-level neural network for training, and the hidden layer information is normalized. Processing to eliminate the problem of different scales between different information dimensions.
- the parameters of the optimal load shedding control can be obtained through training. At this time, the optimal load shedding control parameter flag bit can be output as True to end the training.
- FIG. 6 shows a structural block diagram 600 of a control device for a wind turbine according to an exemplary embodiment of the present application.
- a control apparatus for a wind turbine may include a wind condition prediction unit 610 , a sector identification unit 620 and a load reduction control unit 630 , wherein the wind condition prediction unit 610 may be is configured to acquire the incoming wind information of the wind turbine; the sector identification unit 620 may be configured to determine whether there is a sector with complex wind conditions around the wind turbine according to the acquired incoming wind information; the load reduction control unit 630 may be configured to Feedforward load shedding control is performed on the wind turbine according to the complex wind conditions in response to the existence of a sector having complex wind conditions around the wind turbine.
- the wind condition prediction unit 610 may include a radar detection unit and a wind condition acquisition unit (neither are shown), wherein the radar detection unit may be configured to detect the wind turbine through a lidar wind measurement system surrounding forward wind condition information; the wind condition acquisition unit may be configured to derive the incoming wind information of the wind turbine from the detected forward wind condition information.
- the sector identification unit 620 may include a load determination unit, a feature determination unit, a wind condition identification unit and a sector identification unit (none of which are shown), wherein the load determination unit may be configured as determining whether the load on the wind turbine park due to the incoming wind exceeds a set threshold; the characteristic determination unit may be configured to determine the wind condition of the incoming wind when the wind turbine is subjected to the load in response to the load exceeding the set threshold Whether the value of the characteristic exceeds the characteristic threshold; the wind condition identification unit may be configured to identify the wind condition of the future flow wind as a complex wind condition in response to the value of the wind condition characteristic exceeding the characteristic threshold; the sector identification unit may be configured according to the complex wind condition The direction of the inflow determines whether there are sectors with complex wind conditions around the wind turbine.
- the wind condition characteristics may include, but are not limited to, at least one of the following characteristics: the turbulence intensity of the incoming wind in the duration period, the wind speed change speed of the incoming wind in the duration period , the wind direction twist angle of the incoming wind in the duration period, the wind shear factor of the incoming wind in the duration period, the wind direction change speed of the incoming wind in the duration period and the wind direction fluctuation amplitude of the incoming wind in the duration period.
- the wind condition identification unit may be further configured to determine a correlation between each wind condition characteristic of the plurality of wind condition characteristics and the load. coefficient (ie, the influence weight of each wind condition feature on the load), and a wind condition feature whose correlation coefficient among the plurality of wind condition features is greater than a predetermined threshold is identified as a complex wind condition.
- a wind condition selection unit (not shown) may also be included, and the wind condition selection unit may be configured to select the wind condition characteristic of the incoming wind when the wind turbine is subjected to the maximum value of the load The value of is the value of the wind condition characteristics of the incoming wind when the wind turbine is under load.
- the load shedding control unit 630 may include a wind condition matching unit, a load shedding acquisition unit and a first control unit (none of which are shown), wherein the wind condition matching unit may be configured to determine the wind condition Whether there are response parameters of complex wind conditions matching the complex wind conditions in the load reduction model, wherein the wind load reduction model includes the optimal load reduction control strategy set for the response parameters of each complex wind condition of the wind turbine;
- the derating acquisition unit may be configured to acquire, in response to the presence of a response parameter of the complex wind condition matching the complex wind condition in the wind condition derating model, obtain the response parameter for the matched complex wind condition from the wind condition derating model and set
- the optimal load shedding control strategy is obtained;
- the first control unit may be configured to perform feedforward load shedding control on the wind turbine according to the obtained optimal load shedding control strategy.
- the load shedding control unit 630 may further include a second control unit (not shown), and the second control unit may be configured to respond to the absence of and complex wind conditions in the wind condition shedding model.
- the maximum output power of the wind turbine is limited by matching the response parameters of complex wind conditions.
- the control device shown in FIG. 6 may further include a load reduction recording unit (not shown), and the load reduction recording unit may be configured to use the feedforward load reduction control performed to limit the upper limit of the output power of the wind turbine as a target
- the optimal load shedding control strategy set in response to the complex wind conditions is recorded in the wind condition shedding model.
- the feedforward load shedding control may include, but is not limited to, the following operations: increasing the pitch angle of the wind turbine, increasing the pitch speed of the wind turbine, and reducing the wind turbine increase the generator speed and reduce the generator torque of the wind turbine.
- FIG. 7 is a schematic diagram 700 of a system architecture for a wind turbine according to an exemplary embodiment of the present application.
- a system architecture for a wind turbine may include a control device 710, a wind turbine 720, and a wind turbine controller 730 shown in FIG. 6 (such as, but not limited to, The main control PLC system or pitch control system in the wind turbine, etc.).
- the control method for the wind turbine according to the exemplary embodiment of the present application may be run as an algorithm in the computing unit of the control device 710, and the control device 710 may include, but not limited to, the wind condition prediction shown in FIG. 6 . unit 610 , sector identification unit 620 and load shedding control unit 630 .
- the control device 710 can obtain the sensed inflow wind information A of the wind turbine from the lidar wind measurement system (as shown in FIG. 2 ) disposed on the top of the nacelle of the wind turbine. , and then determine whether there is a sector with complex wind conditions around the wind turbine according to the incoming wind information A, and feed forward the wind turbine according to the complex wind condition in response to the existence of a sector with complex wind conditions around the wind turbine Load drop control.
- FIG. 7 shows a system architecture for a wind turbine according to an exemplary embodiment of the present application
- the present application is not limited thereto, for example, the control device 710 may also be provided in the wind turbine controller 730 and the wind turbine 720.
- the control device 710 may be integrated in the wind turbine controller 730 or a backend controller in the wind farm for dispatching wind turbines or other controllers in addition to being integrated in a separate controller.
- this application has no limitation.
- the control device 710 (not shown in the figure) is integrated into the main control PLC system 731 of the wind turbine, and the lidar wind measurement system arranged on the top of the nacelle of the wind turbine can obtain the sensed The incoming wind information of the received wind turbine, and send the incoming wind information to the wind turbine main control PLC system 731; the wind turbine main control PLC system 731 can determine whether there is a complex wind condition around the wind turbine 720 according to the incoming wind information and in response to the existence of a sector with complex wind conditions around the wind generator set 720, the feedforward load shedding control is performed on the wind generator set according to the complex wind conditions.
- the control method and control device for a wind power generating set can enable the wind power generating set to perform automatic self-control for various complex wind conditions without adding new investment (such as additional hardware equipment).
- Exemplary embodiments according to the present application may also provide a computer-readable storage medium storing a computer program.
- the computer-readable storage medium stores a computer program that, when executed by a processor, causes the processor to execute the control method for a wind turbine according to the present application.
- the computer-readable recording medium is any data storage device that can store data read by a computer system. Examples of the computer-readable recording medium include read-only memory, random-access memory, optical disks, magnetic tapes, floppy disks, optical data storage devices, and carrier waves (such as data transmission through the Internet via wired or wireless transmission paths).
- Exemplary embodiments according to the present application may also provide a computer apparatus.
- the computer device includes a processor and memory. Memory is used to store computer programs.
- the computer program is executed by the processor so that the processor executes the computer program for the control method for a wind turbine according to the present application.
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Abstract
Description
Claims (22)
- 一种用于风力发电机组的控制方法,其特征在于,所述控制方法包括:获取所述风力发电机组的来流风信息;根据获取的来流风信息,确定所述风力发电机组周围是否存在具有复杂风况的扇区;响应于所述风力发电机组周围存在具有复杂风况的扇区,根据所述复杂风况对所述风力发电机组进行前馈降载控制。
- 根据权利要求1所述的控制方法,其特征在于,所述获取所述风力发电机组的来流风信息,包括:通过激光雷达测风系统探测所述风力发电机组周围的前方风况信息;从探测的前方风况信息中导出所述风力发电机组的来流风信息。
- 根据权利要求1所述的控制方法,其特征在于,所述确定所述风力发电机组周围是否存在具有复杂风况的扇区,包括:确定所述风力发电机组因来流风而承受的载荷是否超过设定阈值;响应于所述载荷超过设定阈值,确定所述风力发电机组在承受所述载荷时的来流风的风况特征的值是否超过特征阈值;响应于所述风况特征的值超过特征阈值,将来流风的风况识别为复杂风况;根据复杂风况的入流方向,确定所述风力发电机组周围是否存在具有复杂风况的扇区。
- 根据权利要求3所述的控制方法,其特征在于,所述风况特征包括以下特征中的至少一者:来流风在持续时间段内的湍流强度;来流风在持续时间段内的风速变化速度;来流风在持续时间段内的风向扭转角度;来流风在持续时间段内的风剪切因子;来流风在持续时间段内的风向变化速度;以及来流风在持续时间段内的风向波动幅度。
- 根据权利要求4所述的控制方法,其特征在于,在来流风的多个风况特征超过相应特征阈值的情况下,所述将来流风的风况识别为复杂风况,包 括:确定所述多个风况特征中的每个风况特征与所述载荷之间的相关系数;将所述多个风况特征中的相关系数大于预定阈值的风况特征识别为复杂风况。
- 根据权利要求3所述的控制方法,其特征在于,所述控制方法还包括:选择所述风力发电机组在承受所述载荷中的最大值时的来流风的风况特征的值作为所述风力发电机组在承受所述载荷时的来流风的风况特征的值。
- 根据权利要求1所述的控制方法,其特征在于,所述根据所述复杂风况对所述风力发电机组进行前馈降载控制,包括:确定风况降载模型中是否存在与所述复杂风况匹配的复杂风况的响应参数,其中,所述风况降载模型包括针对各个复杂风况的响应参数而设置的最优降载控制策略;响应于风况降载模型中存在与所述复杂风况匹配的复杂风况的响应参数,从风况降载模型中获取针对所匹配的复杂风况的响应参数而设置的最优降载控制策略;根据获取的最优降载控制策略,对所述风力发电机组进行前馈降载控制。
- 根据权利要求4所述的控制方法,其特征在于,所述根据所述复杂风况对所述风力发电机组进行前馈降载控制,还包括:响应于风况降载模型中不存在与所述复杂风况匹配的复杂风况的响应参数,限制所述风力发电机组的输出功率上限。
- 根据权利要求5所述的控制方法,其特征在于,所述控制方法还包括:将限制所述风力发电机组的输出功率上限而进行的前馈降载控制作为针对所述复杂风况的响应参数而设置的最优降载控制策略记录到所述风况降载模型中。
- 根据权利要求1至9中任意一项所述的控制方法,其特征在于,所述降载控制包括以下操作中的至少一者:增大所述风力发电机组的桨距角度;增大所述风力发电机组的变桨速度;减小所述风力发电机组的发电机转速;以及减小所述风力发电机组的发电机扭矩。
- 一种用于风力发电机组的控制装置,其特征在于,所述控制装置包 括:风况预测单元,被配置为:获取所述风力发电机组的来流风信息;扇区识别单元,被配置为:根据获取的来流风信息,确定所述风力发电机组周围是否存在具有复杂风况的扇区;降载控制单元,被配置为:响应于所述风力发电机组周围存在具有复杂风况的扇区,根据所述复杂风况对所述风力发电机组进行前馈降载控制。
- 根据权利要求11所述的控制装置,其特征在于,所述风况预测单元包括:雷达探测单元,被配置为:通过激光雷达测风系统探测所述风力发电机组周围的前方风况信息;风况获取单元,被配置为:从探测的前方风况信息中导出所述风力发电机组的来流风信息。
- 根据权利要求11所述的控制装置,其特征在于,所述扇区识别单元包括:载荷确定单元,被配置为:确定所述风力发电机组因来流风而承受的载荷是否超过设定阈值;特征确定单元,被配置为:响应于所述载荷超过设定阈值,确定所述风力发电机组在承受所述载荷时的来流风的风况特征的值是否超过特征阈值;风况识别单元,被配置为:响应于所述风况特征的值超过特征阈值,将来流风的风况识别为复杂风况;扇区识别单元,被配置为:根据复杂风况的入流方向,确定所述风力发电机组周围是否存在具有复杂风况的扇区。
- 根据权利要求13所述的控制装置,其特征在于,所述风况特征包括以下特征中的至少一者:来流风在持续时间段内的湍流强度;来流风在持续时间段内的风速变化速度;来流风在持续时间段内的风向扭转角度;来流风在持续时间段内的风剪切因子;来流风在持续时间段内的风向变化速度;以及来流风在持续时间段内的风向波动幅度。
- 根据权利要求14所述的控制装置,其特征在于,在来流风的多个风 况特征超过相应特征阈值的情况下,所述风况识别单元还被配置为:确定所述多个风况特征中的每个风况特征与所述载荷之间的相关系数;将所述多个风况特征中的相关系数大于预定阈值的风况特征识别为复杂风况。
- 根据权利要求13所述的控制装置,其特征在于,所述控制装置还包括:风况选择单元,被配置为:选择所述风力发电机组在承受所述载荷中的最大值时的来流风的风况特征的值作为所述风力发电机组在承受所述载荷时的来流风的风况特征的值。
- 根据权利要求11所述的控制装置,其特征在于,所述降载控制单元包括:风况匹配单元,被配置为:确定风况降载模型中是否存在与所述复杂风况匹配的复杂风况的响应参数,其中,所述风况降载模型包括针对各个复杂风况的响应参数而设置的最优降载控制策略;降载获取单元,被配置为:响应于风况降载模型中存在与所述复杂风况匹配的复杂风况的响应参数,从风况降载模型中获取针对所匹配的复杂风况的响应参数而设置的最优降载控制策略;第一控制单元,被配置为:根据获取的最优降载控制策略,对所述风力发电机组进行前馈降载控制。
- 根据权利要求14所述的控制装置,其特征在于,所述降载控制单元还包括:第二控制单元,被配置为:响应于风况降载模型中不存在与所述复杂风况匹配的复杂风况的响应参数,限制所述风力发电机组的输出功率上限。
- 根据权利要求15所述的控制装置,其特征在于,所述控制装置还包括:降载记录单元,被配置为:将限制所述风力发电机组的输出功率上限而进行的前馈降载控制作为针对所述复杂风况的响应参数而设置的最优降载控制策略记录到所述风况降载模型中。
- 根据权利要求11至19中任意一项所述的控制装置,其特征在于,所述降载控制包括以下操作中的至少一者:增大所述风力发电机组的桨距角度;增大所述风力发电机组的变桨速度;减小所述风力发电机组的发电机转速;以及减小所述风力发电机组的发电机扭矩。
- 一种存储有计算机程序的计算机可读存储介质,其中,当所述计算机程序被处理器执行时,实现权利要求1至10中任意一项所述的用于风力发电机组的控制方法。
- 一种计算装置,包括:处理器;存储器,存储有计算机程序,当所述计算机程序被处理器执行时,实现权利要求1至10中任意一项所述的用于风力发电机组的控制方法。
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