A control method and system for a wind turbine generator set

Abstract

The present invention relates to the technical field of wind power generation, and discloses a control method and system for a wind generator set, including real-time collection of a wind speed signal at the location of the wind generator set, judging the operating environment of the wind generator set according to the relationship between the wind speed signal and a preset wind speed signal, judging that the wind generator set is in a low wind speed operating environment when the wind speed signal is less than or equal to the preset wind speed signal, obtaining a first power generation power, judging that the wind generator set is in a high wind speed operating environment when the wind speed signal is greater than the preset wind speed signal, obtaining a second power generation power, setting a first control instruction of the wind generator set according to the first power generation, setting a second control instruction of the wind generator set according to the second power generation, and controlling the wind generator set according to the first control instruction or the second control instruction. The present invention can put the wind generator set in an optimal power generation state, effectively improve power generation efficiency, and improve wind energy utilization.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a control method and system for a wind power generator set. Background Art

[0002] Energy is the main material basis of social economy and human life, and is the driving force of social development. However, the reserves of non-renewable energy such as oil, coal, and natural gas, which are the main pillars of the world's energy, are decreasing. With the development of technology, the attention and utilization of renewable energy are increasing. Among them, wind power generation is a relatively mature energy technology. With the gradual expansion of the scale of wind turbines and the improvement of unit safety protection, the power generation performance of wind turbines, that is, improving the power generation and availability of wind turbines, has received more and more attention. However, wind power generation requires strong environmental adaptability. Therefore, how to make full use of wind energy and obtain maximum energy and economic benefits has become a problem that the main control system of wind turbines must face.

[0003] Current wind turbines all have their operating parameters set in advance, but in some special monsoon climates, the wind speed changes at any time, causing the wind turbine blades and wind turbine to be unable to maintain the wind turbine in the best working condition, and thus unable to output the best power generation. When the wind speed is high and the speed of the wind turbine is low, the power generation efficiency of the wind turbine will be reduced. When the wind speed is low and the speed of the wind turbine is high, the service life of the wind turbine will be reduced.

[0004] Therefore, how to provide a method and system for effectively controlling a wind turbine generator set is a technical problem that needs to be solved. Summary of the invention

[0005] The embodiments of the present invention provide a control method and system for a wind turbine generator set, which are used to solve the technical problems in the prior art that the wind turbine generator set cannot adjust the working state parameters of the wind turbine generator set according to the wind speed, cannot ensure the optimal power generation efficiency and power generation of the wind turbine generator set, and cannot extend the service life of the wind turbine generator set.

[0006] In order to achieve the above object, the present invention provides a control method for a wind turbine generator set, the method comprising:

[0007] Collect wind speed signals at the location of wind turbines in real time;

[0008] Determine the operating environment of the wind turbine generator set according to the relationship between the wind speed signal and a preset wind speed signal,

[0009] When the wind speed signal is less than or equal to the preset wind speed signal, it is determined that the wind turbine generator set is in a low wind speed operating environment, and a first power generation power of the wind turbine generator set in the low wind speed operating environment is obtained;

[0010] When the wind speed signal is greater than the preset wind speed signal, it is determined that the wind turbine generator set is in a high wind speed operating environment, and a second power generation power of the wind turbine generator set in the high wind speed operating environment is obtained;

[0011] Setting a first control instruction of the wind generator set according to a first power generation of the wind generator set, and setting a second control instruction of the wind generator set according to a second power generation of the wind generator set;

[0012] The wind turbine generator set is controlled according to the first control instruction or the second control instruction.

[0013] In one of the embodiments, before setting the first control instruction of the wind turbine generator set according to the first power generation power of the wind turbine generator set, the method further includes:

[0014] determining whether it is necessary to set a first control instruction for the wind turbine generator set according to the relationship between the first power generation and the preset first power generation;

[0015] If the first power generation power is greater than or equal to the preset first power generation power, it is determined that there is no need to set the first control instruction of the wind turbine generator set;

[0016] If the first power generation power is less than the preset first power generation power, the first control instruction of the wind generator set is set according to the first power generation power of the wind generator set.

[0017] In one embodiment, when setting a first control instruction of the wind turbine generator set according to the first power generation power of the wind turbine generator set, it includes:

[0018] Obtaining the first generated power A and the preset first generated power a;

[0019] The first rotation speed of the wind turbine generator is set according to the power difference aA between the first power A and the preset first power a.

[0020] A preset power generation difference matrix B is set as B(B1, B2, B3, B4), wherein B1 is a first preset power generation difference, B2 is a second preset power generation difference, B3 is a third preset power generation difference, B4 is a fourth preset power generation difference, and B1<B2<B3<B4;

[0021] A first speed matrix C of the preset wind turbine generator is set as C(C1, C2, C3, C4, C5), wherein C1 is the first preset first speed, C2 is the second preset first speed, C3 is the third preset first speed, C4 is the fourth preset first speed, C5 is the fifth preset first speed, and C1<C2<C3<C4<C5;

[0022] The first rotation speed of the wind turbine generator is set according to the relationship between the power generation difference aA and each preset power generation difference:

[0023] When aA<B1, the first preset first speed C1 is selected as the first speed of the wind turbine;

[0024] When B1≤aA<B2, the second preset first speed C2 is selected as the first speed of the wind turbine;

[0025] When B2≤aA<B3, the third preset first speed C3 is selected as the first speed of the wind turbine;

[0026] When B3≤aA<B4, the fourth preset first speed C4 is selected as the first speed of the wind turbine;

[0027] When B4≤aA, the fifth preset first rotational speed C5 is selected as the first rotational speed of the wind turbine.

[0028] In one embodiment, when setting the second control instruction of the wind turbine generator set according to the second power generation power of the wind turbine generator set, it includes:

[0029] According to the relationship between the second power generation and the preset second power generation, it is determined whether it is necessary to set the second control instruction of the wind turbine generator set;

[0030] If the second power generation is greater than or equal to the preset second power generation, it is determined that there is no need to set the second control instruction of the wind turbine generator set;

[0031] If the second generated power is less than the preset second generated power, the blade length of the wind generator is set according to the wind speed signal.

[0032] In one embodiment, when setting the blade length of the wind turbine according to the wind speed signal, it includes:

[0033] Acquire the wind speed signal D, and set the blade length of the wind turbine according to the wind speed signal D.

[0034] A preset wind speed signal matrix E is set to E(E1, E2, E3, E4), wherein E1 is a first preset wind speed signal, E2 is a second preset wind speed signal, E3 is a third preset wind speed signal, E4 is a fourth preset wind speed signal, and E1<E2<E3<E4;

[0035] Preset the blade length matrix F of the wind turbine generator, set F(F1, F2, F3, F4, F5), where F1 is the first preset blade length, F2 is the second preset blade length, F3 is the third preset blade length, F4 is the fourth preset blade length, F5 is the fifth preset blade length, and F1<F2<F3<F4<F5;

[0036] The blade length of the wind turbine is set according to the relationship between the wind speed signal D and each preset wind speed signal:

[0037] When D<E1, the first preset blade length F1 is selected as the blade length of the wind turbine;

[0038] When E1≤D<E2, the second preset blade length F2 is selected as the blade length of the wind turbine;

[0039] When E2≤D<E3, the third preset blade length F3 is selected as the blade length of the wind turbine;

[0040] When E3≤D<E4, the fourth preset blade length F4 is selected as the blade length of the wind turbine;

[0041] When E4≤D, the fifth preset blade length F5 is selected as the blade length of the wind turbine.

[0042] In one embodiment, after setting the blade length of the wind turbine according to the wind speed signal D, the method further comprises:

[0043] Obtain an average wind speed J within a preset time period, and set a second speed of the wind turbine generator according to the average wind speed J.

[0044] Preset average wind speed matrix G, set G (G1, G2, G3, G4), where G1 is the first preset average wind speed, G2 is the second preset average wind speed, G3 is the third preset average wind speed, G4 is the fourth preset average wind speed, and G1 < G2 < G3 < G4;

[0045] A second speed matrix K of the wind turbine generator is preset, and K(K1, K2, K3, K4, K5) is set, wherein K1 is the first preset second speed, K2 is the second preset second speed, K3 is the third preset second speed, K4 is the fourth preset second speed, K5 is the fifth preset second speed, and K1<K2<K3<K4<K5;

[0046] The second speed of the wind turbine generator is set according to the relationship between the average wind speed J and each preset average wind speed:

[0047] When D<G1, the first preset second speed K1 is selected as the second speed of the wind turbine;

[0048] When G1≤D<G2, the second preset second speed K2 is selected as the second speed of the wind turbine generator;

[0049] When G2≤D<G3, the third preset second speed K3 is selected as the second speed of the wind turbine generator;

[0050] When G3≤D<G4, the fourth preset second speed K4 is selected as the second speed of the wind turbine generator;

[0051] When G4≤D, the fifth preset second rotational speed K5 is selected as the second rotational speed of the wind turbine.

[0052] In one embodiment, after setting the second rotation speed of the wind turbine generator according to the average wind speed J, the method further comprises:

[0053] Obtaining a third power L of the wind turbine generator set, and judging whether it is necessary to correct the second rotation speed of the wind turbine generator according to the relationship between the third power L and the preset second power.

[0054] If the third power generation L is greater than or equal to the preset second power generation, it is determined that there is no need to correct the second rotation speed of the wind turbine generator;

[0055] If the third generated power L is less than the preset second generated power, it is determined that the second rotational speed of the wind turbine generator needs to be corrected.

[0056] In one embodiment, when the second rotation speed of the wind turbine is corrected, it includes:

[0057] Preset a third power generation matrix M, set M (M1, M2, M3, M4), where M1 is the first preset third power generation, M2 is the second preset third power generation, M3 is the third preset third power generation, M4 is the fourth preset third power generation, and M1<M2<M3<M4;

[0058] A second speed correction coefficient matrix h of the preset wind turbine generator is set to h(h1, h2, h3, h4, h5), wherein h1 is the first preset second speed correction coefficient, h2 is the second preset second speed correction coefficient, h3 is the third preset second speed correction coefficient, h4 is the fourth preset second speed correction coefficient, h5 is the fifth preset second speed correction coefficient, and 1.2

[0059] When the second speed of the wind turbine generator is set to the i-th preset second speed Ki, i=1, 2, 3, 4, 5, the second speed of the wind turbine generator is corrected according to the relationship between the third power generation L and each preset third power generation:

[0060] When L<M1, the first preset second speed correction coefficient h1 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h1;

[0061] When M1≤L<M2, the second preset second speed correction coefficient h2 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h2;

[0062] When M2≤L<M3, the third preset second speed correction coefficient h3 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h3;

[0063] When M3≤L<M4, the fourth preset second speed correction coefficient h4 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h4;

[0064] When M4≤L, the fifth preset second rotational speed correction coefficient h5 is selected to correct the i-th preset second rotational speed Ki, and the second rotational speed of the wind turbine after correction is Ki*h5.

[0065] In one embodiment, after the second rotation speed of the wind turbine generator is corrected according to the relationship between the third power generation L and each preset third power generation, the method further includes:

[0066] obtaining a fourth power generation of the wind turbine generator set, and determining whether an alarm needs to be issued according to a relationship between the fourth power generation and the preset second power generation,

[0067] If the fourth power generation is greater than or equal to the preset second power generation, it is determined that no alarm needs to be issued;

[0068] ​If the fourth generated power is less than the preset second generated power, it is determined that an alarm needs to be issued, and an alarm signal is generated.

[0069] In order to achieve the above object, the present invention provides a control system for a wind turbine generator set, the system comprising:

[0070] The acquisition module is used to collect the wind speed signal at the location of the wind turbine generator set in real time;

[0071] a judging module, configured to judge the operating environment of the wind turbine generator set according to the relationship between the wind speed signal and a preset wind speed signal,

[0072] When the wind speed signal is less than or equal to the preset wind speed signal, it is determined that the wind turbine generator set is in a low wind speed operating environment, and a first power generation power of the wind turbine generator set in the low wind speed operating environment is obtained;

[0073] When the wind speed signal is greater than the preset wind speed signal, it is determined that the wind turbine generator set is in a high wind speed operating environment, and a second power generation power of the wind turbine generator set in the high wind speed operating environment is obtained;

[0074] a setting module, configured to set a first control instruction of the wind generator set according to a first power generation of the wind generator set, and to set a second control instruction of the wind generator set according to a second power generation of the wind generator set;

[0075] A control module is used to control the wind turbine generator set according to the first control instruction or the second control instruction.

[0076] The present invention provides a control method and system for a wind turbine generator set, which has the following beneficial effects compared with the prior art:

[0077] The present invention relates to the technical field of wind power generation, and discloses a control method and system for a wind generator set, including real-time collection of a wind speed signal at the location of the wind generator set, judging the operating environment of the wind generator set according to the relationship between the wind speed signal and a preset wind speed signal, judging that the wind generator set is in a low wind speed operating environment when the wind speed signal is less than or equal to the preset wind speed signal, obtaining a first power generation power, judging that the wind generator set is in a high wind speed operating environment when the wind speed signal is greater than the preset wind speed signal, obtaining a second power generation power, setting a first control instruction of the wind generator set according to the first power generation, setting a second control instruction of the wind generator set according to the second power generation, and controlling the wind generator set according to the first control instruction or the second control instruction. The present invention can put the wind generator set in an optimal power generation state, effectively improve power generation efficiency, and improve the power supply reliability of the wind generator set and the maximum utilization of wind energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 A schematic flow chart of a control method for a wind turbine generator set in an embodiment of the present invention is shown;

[0079] Figure 2 yes Figure 1 A detailed flow chart of a specific embodiment;

[0080] Figure 3 A structural schematic diagram of a control system for a wind turbine generator set in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0081] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0082] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0083] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0084] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0085] The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

[0086] like Figure 1 As shown, an embodiment of the present invention discloses a control method for a wind turbine generator set, the method comprising:

[0087] S110: collecting wind speed signals at the location of the wind turbine generator set in real time;

[0088] In this embodiment, the wind speed at the location of the wind turbine generator set can be collected by a wind speed collection instrument and the collected wind speed can be used as a wind speed signal. The wind speed signal can also be collected by other instruments and equipment, which is not specifically limited here.

[0089] S120: judging the operating environment of the wind turbine generator set according to the relationship between the wind speed signal and a preset wind speed signal,

[0090] When the wind speed signal is less than or equal to the preset wind speed signal, it is determined that the wind turbine generator set is in a low wind speed operating environment, and a first power generation power of the wind turbine generator set in the low wind speed operating environment is obtained;

[0091] When the wind speed signal is greater than the preset wind speed signal, it is determined that the wind turbine generator set is in a high wind speed operating environment, and a second power generation power of the wind turbine generator set in the high wind speed operating environment is obtained.

[0092] In this embodiment, the present invention divides the operating environment of the wind turbine generator set into a low wind speed operating environment and a high wind speed operating environment. In the low wind speed operating environment and the high wind speed operating environment, the optimal power generation that can be generated is also different. When in the high wind speed operating environment, the power generation power of the wind turbine generator set is higher, and when in the low wind speed operating environment, the power generation power of the wind turbine generator set is lower. The present invention can ensure that the wind turbine generator set is in the optimal power generation state by respectively detecting the first power generation power and the second power generation power in the low wind speed operating environment and the high wind speed operating environment.

[0093] S130: Setting a first control instruction of the wind turbine generator set according to the first power generation of the wind turbine generator set, and setting a second control instruction of the wind turbine generator set according to the second power generation of the wind turbine generator set.

[0094] S140: Control the wind turbine generator set according to the first control instruction or the second control instruction.

[0095] In some embodiments of the present application, before setting the first control instruction of the wind turbine generator set according to the first power generation power of the wind turbine generator set, the method further includes:

[0096] determining whether it is necessary to set a first control instruction for the wind turbine generator set according to the relationship between the first power generation and the preset first power generation;

[0097] If the first power generation power is greater than or equal to the preset first power generation power, it is determined that there is no need to set the first control instruction of the wind turbine generator set;

[0098] If the first power generation power is less than the preset first power generation power, the first control instruction of the wind generator set is set according to the first power generation power of the wind generator set.

[0099] In this embodiment, when setting the first control instruction of the wind turbine generator set, it is necessary to determine whether the first power generation power of the wind turbine generator set already meets the preset first power generation power. If it meets the preset first power generation power, no setting is required and the current state can be maintained. If it does not meet the preset first power generation power, the first control instruction of the wind turbine generator set is set. The present invention can prevent energy waste and improve the power generation power of the wind turbine generator set.

[0100] In some embodiments of the present application, when setting the first control instruction of the wind turbine generator set according to the first power generation power of the wind turbine generator set, it includes:

[0101] Obtaining the first generated power A and the preset first generated power a;

[0102] The first rotation speed of the wind turbine generator is set according to the power difference aA between the first power A and the preset first power a.

[0103] A preset power generation difference matrix B is set as B(B1, B2, B3, B4), wherein B1 is a first preset power generation difference, B2 is a second preset power generation difference, B3 is a third preset power generation difference, B4 is a fourth preset power generation difference, and B1<B2<B3<B4;

[0104] A first speed matrix C of the preset wind turbine generator is set as C(C1, C2, C3, C4, C5), wherein C1 is the first preset first speed, C2 is the second preset first speed, C3 is the third preset first speed, C4 is the fourth preset first speed, C5 is the fifth preset first speed, and C1<C2<C3<C4<C5;

[0105] The first rotation speed of the wind turbine generator is set according to the relationship between the power generation difference aA and each preset power generation difference:

[0106] When aA<B1, the first preset first speed C1 is selected as the first speed of the wind turbine;

[0107] When B1≤aA<B2, the second preset first speed C2 is selected as the first speed of the wind turbine;

[0108] When B2≤aA<B3, the third preset first speed C3 is selected as the first speed of the wind turbine;

[0109] When B3≤aA<B4, the fourth preset first speed C4 is selected as the first speed of the wind turbine;

[0110] When B4≤aA, the fifth preset first rotational speed C5 is selected as the first rotational speed of the wind turbine.

[0111] In this embodiment, the wind turbine generator set mainly includes blades, wind turbines, etc. The length of the blades and the rotational speed of the wind turbine generator are the main factors determining the power generation of the wind turbine generator set. The present invention sets the first rotational speed of the wind turbine generator according to the relationship between the power generation difference aA and each preset power generation difference. The present invention can ensure the power generation of the wind turbine generator set in a low wind speed operating environment by setting the first rotational speed of the wind turbine generator.

[0112] like Figure 2 As shown, in some embodiments of the present application, when setting the second control instruction of the wind turbine generator set according to the second power generation power of the wind turbine generator set, it includes:

[0113] S131: judging whether it is necessary to set a second control instruction for the wind turbine generator set according to the relationship between the second power generation and the preset second power generation,

[0114] S132: If the second power generation is greater than or equal to the preset second power generation, it is determined that there is no need to set the second control instruction of the wind turbine generator set;

[0115] If the second generated power is less than the preset second generated power, the blade length of the wind generator is set according to the wind speed signal.

[0116] In this embodiment, when the wind turbine generator set is in a high wind speed operating environment, it is first determined whether the current second power generation can reach the preset second power generation, wherein the preset second power generation is greater than the preset first power generation, and when the second power generation cannot reach the preset second power generation, the blade length of the wind turbine generator is set according to the wind speed signal.

[0117] In some embodiments of the present application, when setting the blade length of the wind turbine according to the wind speed signal, it includes:

[0118] Acquire the wind speed signal D, and set the blade length of the wind turbine according to the wind speed signal D.

[0119] A preset wind speed signal matrix E is set to E(E1, E2, E3, E4), wherein E1 is a first preset wind speed signal, E2 is a second preset wind speed signal, E3 is a third preset wind speed signal, E4 is a fourth preset wind speed signal, and E1<E2<E3<E4;

[0120] Preset the blade length matrix F of the wind turbine generator, set F(F1, F2, F3, F4, F5), where F1 is the first preset blade length, F2 is the second preset blade length, F3 is the third preset blade length, F4 is the fourth preset blade length, F5 is the fifth preset blade length, and F1<F2<F3<F4<F5;

[0121] The blade length of the wind turbine is set according to the relationship between the wind speed signal D and each preset wind speed signal:

[0122] When D<E1, the first preset blade length F1 is selected as the blade length of the wind turbine;

[0123] When E1≤D<E2, the second preset blade length F2 is selected as the blade length of the wind turbine;

[0124] When E2≤D<E3, the third preset blade length F3 is selected as the blade length of the wind turbine;

[0125] When E3≤D<E4, the fourth preset blade length F4 is selected as the blade length of the wind turbine;

[0126] When E4≤D, the fifth preset blade length F5 is selected as the blade length of the wind turbine.

[0127] In this embodiment, when the wind turbine generator set is in a high wind speed operating environment, the present invention can set the blade length of the wind turbine generator set according to the relationship between the wind speed signal D and each preset wind speed signal. The present invention can increase the windward area of ​​the wind turbine generator set by setting the blade length of the wind turbine generator set, thereby increasing the power generation capacity of the wind turbine generator set.

[0128] In some embodiments of the present application, after setting the blade length of the wind turbine according to the wind speed signal D, the method further includes:

[0129] Obtain an average wind speed J within a preset time period, and set a second speed of the wind turbine generator according to the average wind speed J.

[0130] Preset average wind speed matrix G, set G (G1, G2, G3, G4), where G1 is the first preset average wind speed, G2 is the second preset average wind speed, G3 is the third preset average wind speed, G4 is the fourth preset average wind speed, and G1 < G2 < G3 < G4;

[0131] A second speed matrix K of the wind turbine generator is preset, and K(K1, K2, K3, K4, K5) is set, wherein K1 is the first preset second speed, K2 is the second preset second speed, K3 is the third preset second speed, K4 is the fourth preset second speed, K5 is the fifth preset second speed, and K1<K2<K3<K4<K5;

[0132] The second speed of the wind turbine generator is set according to the relationship between the average wind speed J and each preset average wind speed:

[0133] When D<G1, the first preset second speed K1 is selected as the second speed of the wind turbine;

[0134] When G1≤D<G2, the second preset second speed K2 is selected as the second speed of the wind turbine generator;

[0135] When G2≤D<G3, the third preset second speed K3 is selected as the second speed of the wind turbine generator;

[0136] When G3≤D<G4, the fourth preset second speed K4 is selected as the second speed of the wind turbine generator;

[0137] When G4≤D, the fifth preset second rotational speed K5 is selected as the second rotational speed of the wind turbine.

[0138] In this embodiment, the second speed of the wind generator is set according to the relationship between the average wind speed J and each preset average wind speed. By setting the second speed of the wind generator in a high wind speed operating environment, the present invention can further ensure the power generation power and power generation of the wind generator set and improve the utilization rate of wind energy.

[0139] In some embodiments of the present application, after setting the second rotation speed of the wind turbine generator according to the average wind speed J, the method further includes:

[0140] Obtaining a third power L of the wind turbine generator set, and judging whether it is necessary to correct the second rotation speed of the wind turbine generator according to the relationship between the third power L and the preset second power.

[0141] If the third power generation L is greater than or equal to the preset second power generation, it is determined that there is no need to correct the second rotation speed of the wind turbine generator;

[0142] If the third generated power L is less than the preset second generated power, it is determined that the second rotational speed of the wind turbine generator needs to be corrected.

[0143] In some embodiments of the present application, when the second rotation speed of the wind turbine is corrected, it includes:

[0144] Preset a third power generation matrix M, set M (M1, M2, M3, M4), where M1 is the first preset third power generation, M2 is the second preset third power generation, M3 is the third preset third power generation, M4 is the fourth preset third power generation, and M1<M2<M3<M4;

[0145] A second speed correction coefficient matrix h of the preset wind turbine generator is set to h(h1, h2, h3, h4, h5), wherein h1 is the first preset second speed correction coefficient, h2 is the second preset second speed correction coefficient, h3 is the third preset second speed correction coefficient, h4 is the fourth preset second speed correction coefficient, h5 is the fifth preset second speed correction coefficient, and 1.2

[0146] When the second speed of the wind turbine generator is set to the i-th preset second speed Ki, i=1, 2, 3, 4, 5, the second speed of the wind turbine generator is corrected according to the relationship between the third power generation L and each preset third power generation:

[0147] When L<M1, the first preset second speed correction coefficient h1 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h1;

[0148] When M1≤L<M2, the second preset second speed correction coefficient h2 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h2;

[0149] When M2≤L<M3, the third preset second speed correction coefficient h3 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h3;

[0150] When M3≤L<M4, the fourth preset second speed correction coefficient h4 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h4;

[0151] When M4≤L, the fifth preset second rotational speed correction coefficient h5 is selected to correct the i-th preset second rotational speed Ki, and the second rotational speed of the wind turbine after correction is Ki*h5.

[0152] ​In this embodiment, after the second speed of the wind generator is set according to the average wind speed J, the power generation power of the wind generator set may not reach the preset second power generation power. Therefore, when the second speed of the wind generator is set to the i-th preset second speed Ki, i=1, 2, 3, 4, 5, the second speed of the wind generator is corrected according to the relationship between the third power generation power L and each preset third power generation power. By correcting the second speed of the wind generator, the present invention can enable the wind generator set to maintain the optimal power generation state at all times.

[0153] In some embodiments of the present application, after the second rotation speed of the wind turbine generator is corrected according to the relationship between the third power generation L and each preset third power generation, the method further includes:

[0154] obtaining a fourth power generation of the wind turbine generator set, and determining whether an alarm needs to be issued according to a relationship between the fourth power generation and the preset second power generation,

[0155] If the fourth power generation is greater than or equal to the preset second power generation, it is determined that no alarm needs to be issued;

[0156] If the fourth generated power is less than the preset second generated power, it is determined that an alarm needs to be issued, and an alarm signal is generated.

[0157] In this embodiment, an alarm is issued in real time based on the relationship between the fourth power generation and the preset second power generation. By issuing an alarm in real time, the present invention can notify the staff to carry out maintenance in the first time, thereby ensuring the power generation status of the wind turbine and avoiding damage to the wind turbine, which affects its service life.

[0158] like Figure 3 As shown, an embodiment of the present invention discloses a control system for a wind turbine generator set, the system comprising:

[0159] The acquisition module is used to collect the wind speed signal at the location of the wind turbine generator set in real time;

[0160] a judging module, configured to judge the operating environment of the wind turbine generator set according to the relationship between the wind speed signal and a preset wind speed signal,

[0161] When the wind speed signal is less than or equal to the preset wind speed signal, it is determined that the wind turbine generator set is in a low wind speed operating environment, and a first power generation power of the wind turbine generator set in the low wind speed operating environment is obtained;

[0162] When the wind speed signal is greater than the preset wind speed signal, it is determined that the wind turbine generator set is in a high wind speed operating environment, and a second power generation power of the wind turbine generator set in the high wind speed operating environment is obtained;

[0163] a setting module, configured to set a first control instruction of the wind generator set according to a first power generation of the wind generator set, and to set a second control instruction of the wind generator set according to a second power generation of the wind generator set;

[0164] A control module is used to control the wind turbine generator set according to the first control instruction or the second control instruction.

[0165] In some embodiments of the present application, in the setting module, before setting the first control instruction of the wind turbine generator set according to the first power generation power of the wind turbine generator set, the method further includes:

[0166] determining whether it is necessary to set a first control instruction for the wind turbine generator set according to the relationship between the first power generation and the preset first power generation;

[0167] If the first power generation power is greater than or equal to the preset first power generation power, it is determined that there is no need to set the first control instruction of the wind turbine generator set;

[0168] If the first power generation power is less than the preset first power generation power, the first control instruction of the wind generator set is set according to the first power generation power of the wind generator set.

[0169] In some embodiments of the present application, in the setting module, when setting the first control instruction of the wind turbine generator set according to the first power generation power of the wind turbine generator set, it includes:

[0170] The setting module is used to obtain the first generated power A and the preset first generated power a;

[0171] The setting module is used to set the first speed of the wind turbine generator according to the power difference aA between the first power A and the preset first power a.

[0172] The setting module is used to preset the power generation difference matrix B, and set B (B1, B2, B3, B4), wherein B1 is the first preset power generation difference, B2 is the second preset power generation difference, B3 is the third preset power generation difference, B4 is the fourth preset power generation difference, and B1<B2<B3<B4;

[0173] The setting module is used to preset a first speed matrix C of the wind turbine generator, setting C (C1, C2, C3, C4, C5), wherein C1 is the first preset first speed, C2 is the second preset first speed, C3 is the third preset first speed, C4 is the fourth preset first speed, C5 is the fifth preset first speed, and C1<C2<C3<C4<C5;

[0174] The setting module is used to set the first speed of the wind turbine generator according to the relationship between the power generation difference aA and each preset power generation difference:

[0175] When aA<B1, the first preset first speed C1 is selected as the first speed of the wind turbine;

[0176] When B1≤aA<B2, the second preset first speed C2 is selected as the first speed of the wind turbine;

[0177] When B2≤aA<B3, the third preset first speed C3 is selected as the first speed of the wind turbine;

[0178] When B3≤aA<B4, the fourth preset first speed C4 is selected as the first speed of the wind turbine;

[0179] When B4≤aA, the fifth preset first rotational speed C5 is selected as the first rotational speed of the wind turbine.

[0180] In some embodiments of the present application, in the setting module, when setting the second control instruction of the wind turbine generator set according to the second power generation power of the wind turbine generator set, it includes:

[0181] The setting module is used to determine whether it is necessary to set the second control instruction of the wind turbine generator set according to the relationship between the second power generation and the preset second power generation.

[0182] If the second power generation is greater than or equal to the preset second power generation, it is determined that there is no need to set the second control instruction of the wind turbine generator set;

[0183] If the second generated power is less than the preset second generated power, the blade length of the wind generator is set according to the wind speed signal.

[0184] In some embodiments of the present application, in the setting module, when setting the blade length of the wind turbine according to the wind speed signal, it includes:

[0185] The setting module is used to obtain the wind speed signal D and set the blade length of the wind turbine according to the wind speed signal D.

[0186] The setting module is used to preset the wind speed signal matrix E, set E (E1, E2, E3, E4), where E1 is the first preset wind speed signal, E2 is the second preset wind speed signal, E3 is the third preset wind speed signal, E4 is the fourth preset wind speed signal, and E1 < E2 < E3 < E4;

[0187] The setting module is used to preset the blade length matrix F of the wind turbine, and set F (F1, F2, F3, F4, F5), wherein F1 is the first preset blade length, F2 is the second preset blade length, F3 is the third preset blade length, F4 is the fourth preset blade length, F5 is the fifth preset blade length, and F1 < F2 < F3 < F4 < F5;

[0188] The setting module is used to set the blade length of the wind turbine according to the relationship between the wind speed signal D and each preset wind speed signal:

[0189] When D<E1, the first preset blade length F1 is selected as the blade length of the wind turbine;

[0190] When E1≤D<E2, the second preset blade length F2 is selected as the blade length of the wind turbine;

[0191] When E2≤D<E3, the third preset blade length F3 is selected as the blade length of the wind turbine;

[0192] When E3≤D<E4, the fourth preset blade length F4 is selected as the blade length of the wind turbine;

[0193] When E4≤D, the fifth preset blade length F5 is selected as the blade length of the wind turbine.

[0194] In some embodiments of the present application, in the setting module, after setting the blade length of the wind turbine according to the wind speed signal D, it further includes:

[0195] The setting module is used to obtain the average wind speed J within a preset time period, and set the second speed of the wind generator according to the average wind speed J.

[0196] The setting module is used to preset the average wind speed matrix G, setting G (G1, G2, G3, G4), wherein G1 is the first preset average wind speed, G2 is the second preset average wind speed, G3 is the third preset average wind speed, G4 is the fourth preset average wind speed, and G1<G2<G3<G4;

[0197] The setting module is used to preset the second speed matrix K of the wind turbine generator, and set K (K1, K2, K3, K4, K5), wherein K1 is the first preset second speed, K2 is the second preset second speed, K3 is the third preset second speed, K4 is the fourth preset second speed, K5 is the fifth preset second speed, and K1<K2<K3<K4<K5;

[0198] The setting module is used to set the second speed of the wind turbine generator according to the relationship between the average wind speed J and each preset average wind speed:

[0199] When D<G1, the first preset second speed K1 is selected as the second speed of the wind turbine;

[0200] When G1≤D<G2, the second preset second speed K2 is selected as the second speed of the wind turbine generator;

[0201] When G2≤D<G3, the third preset second speed K3 is selected as the second speed of the wind turbine generator;

[0202] When G3≤D<G4, the fourth preset second speed K4 is selected as the second speed of the wind turbine generator;

[0203] When G4≤D, the fifth preset second rotational speed K5 is selected as the second rotational speed of the wind turbine.

[0204] In some embodiments of the present application, in the setting module, after setting the second speed of the wind turbine generator according to the average wind speed J, the following further comprises:

[0205] The setting module is used to obtain the third power L of the wind turbine generator set, and determine whether the second speed of the wind turbine generator needs to be corrected according to the relationship between the third power L and the preset second power β.

[0206] The setting module is used for judging that it is not necessary to correct the second rotation speed of the wind turbine generator if the third power generation L is greater than or equal to the preset second power generation;

[0207] If the third generated power L is less than the preset second generated power, it is determined that the second rotational speed of the wind turbine generator needs to be corrected.

[0208] In some embodiments of the present application, in the setting module, when the second rotation speed of the wind turbine is corrected, it includes:

[0209] The setting module is used to preset the third power generation matrix M, and set M (M1, M2, M3, M4), wherein M1 is the first preset third power generation, M2 is the second preset third power generation, M3 is the third preset third power generation, M4 is the fourth preset third power generation, and M1<M2<M3<M4;

[0210] The setting module is used to preset the second speed correction coefficient matrix h of the wind turbine, and set h(h1, h2, h3, h4, h5), wherein h1 is the first preset second speed correction coefficient, h2 is the second preset second speed correction coefficient, h3 is the third preset second speed correction coefficient, h4 is the fourth preset second speed correction coefficient, h5 is the fifth preset second speed correction coefficient, and 1.2

[0211] The setting module is used to correct the second speed of the wind generator according to the relationship between the third power generation L and each preset third power generation when the second speed of the wind generator is set to the i-th preset second speed Ki, i=1, 2, 3, 4, 5:

[0212] When L<M1, the first preset second speed correction coefficient h1 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h1;

[0213] When M1≤L<M2, the second preset second speed correction coefficient h2 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h2;

[0214] When M2≤L<M3, the third preset second speed correction coefficient h3 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h3;

[0215] When M3≤L<M4, the fourth preset second speed correction coefficient h4 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h4;

[0216] When M4≤L, the fifth preset second rotational speed correction coefficient h5 is selected to correct the i-th preset second rotational speed Ki, and the second rotational speed of the wind turbine after correction is Ki*h5.

[0217] In some embodiments of the present application, in the setting module, after the second rotation speed of the wind turbine generator is corrected according to the relationship between the third power generation L and each preset second power generation, the setting module further includes:

[0218] The setting module is used to obtain the fourth power generation of the wind turbine generator set, and determine whether an alarm needs to be issued according to the relationship between the fourth power generation and the preset second power generation.

[0219] If the fourth power generation is greater than or equal to the preset second power generation, it is determined that no alarm needs to be issued; ​

[0220] If the fourth generated power is less than the preset second generated power, it is determined that an alarm needs to be issued, and an alarm signal is generated.

[0221] In summary, the embodiment of the present invention collects the wind speed signal of the location of the wind generator set in real time, judges the operating environment of the wind generator set according to the relationship between the wind speed signal and the preset wind speed signal, judges that the wind generator set is in a low wind speed operating environment when the wind speed signal is less than or equal to the preset wind speed signal, obtains the first power generation, judges that the wind generator set is in a high wind speed operating environment when the wind speed signal is greater than the preset wind speed signal, obtains the second power generation, sets the first control instruction of the wind generator set according to the first power generation, sets the second control instruction of the wind generator set according to the second power generation, and controls the wind generator set according to the first control instruction or the second control instruction. The present invention can put the wind generator set in the best power generation state, effectively improve the power generation efficiency, and improve the power supply reliability of the wind generator set and the maximum utilization of wind energy.

[0222] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0223] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not fully described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0224] Those skilled in the art can understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A control method for a wind turbine generator set, characterized in that: The method comprises: Collect wind speed signals at the location of wind turbines in real time; Determine the operating environment of the wind turbine generator set according to the relationship between the wind speed signal and a preset wind speed signal, When the wind speed signal is less than or equal to the preset wind speed signal, it is determined that the wind turbine generator set is in a low wind speed operating environment, and a first power generation power of the wind turbine generator set in the low wind speed operating environment is obtained; When the wind speed signal is greater than the preset wind speed signal, it is determined that the wind turbine generator set is in a high wind speed operating environment, and a second power generation power of the wind turbine generator set in the high wind speed operating environment is obtained; Setting a first control instruction of the wind generator set according to a first power generation of the wind generator set, and setting a second control instruction of the wind generator set according to a second power generation of the wind generator set; Controlling the wind turbine generator set according to the first control instruction or the second control instruction; Before setting the first control instruction of the wind turbine generator set according to the first power generation power of the wind turbine generator set, the method further includes: determining whether it is necessary to set a first control instruction for the wind turbine generator set according to the relationship between the first power generation and the preset first power generation; If the first power generation power is greater than or equal to the preset first power generation power, it is determined that there is no need to set the first control instruction of the wind turbine generator set; If the first power generation power is less than the preset first power generation power, setting a first control instruction of the wind generator set according to the first power generation power of the wind generator set; When setting a first control instruction of the wind turbine generator set according to the first power generation power of the wind turbine generator set, the method includes: Obtaining the first generated power A and the preset first generated power a; The first rotation speed of the wind turbine generator is set according to the power difference aA between the first power A and the preset first power a. A preset power generation difference matrix B is set to B (B1, B2, B3, B4), where B1 is a first preset power generation difference, B2 is a second preset power generation difference, B3 is a third preset power generation difference, B4 is a fourth preset power generation difference, and B1 < B2 < B3 < B4; Preset a first speed matrix C of the wind turbine generator, set C (C1, C2, C3, C4, C5), where C1 is the first preset first speed, C2 is the second preset first speed, C3 is the third preset first speed, C4 is the fourth preset first speed, C5 is the fifth preset first speed, and C1<C2<C3<C4<C5; The first rotation speed of the wind turbine generator is set according to the relationship between the power generation difference aA and each preset power generation difference: When aA<B1, the first preset first speed C1 is selected as the first speed of the wind turbine; When B1≤aA<B2, the second preset first speed C2 is selected as the first speed of the wind turbine; When B2≤aA<B3, the third preset first speed C3 is selected as the first speed of the wind turbine; When B3≤aA<B4, the fourth preset first speed C4 is selected as the first speed of the wind turbine; When B4≤aA, the fifth preset first rotational speed C5 is selected as the first rotational speed of the wind turbine.

2. The control method for a wind turbine generator set according to claim 1, characterized in that: When setting the second control instruction of the wind turbine generator set according to the second power generation power of the wind turbine generator set, it includes: According to the relationship between the second power generation and the preset second power generation, it is determined whether it is necessary to set the second control instruction of the wind turbine generator set; If the second power generation is greater than or equal to the preset second power generation, it is determined that there is no need to set the second control instruction of the wind turbine generator set; If the second generated power is less than the preset second generated power, the blade length of the wind generator is set according to the wind speed signal.

3. The control method for a wind turbine generator set according to claim 2, characterized in that: When setting the blade length of the wind turbine according to the wind speed signal, the method includes: Acquire the wind speed signal D, and set the blade length of the wind turbine according to the wind speed signal D. A preset wind speed signal matrix E is set to E (E1, E2, E3, E4), where E1 is a first preset wind speed signal, E2 is a second preset wind speed signal, E3 is a third preset wind speed signal, E4 is a fourth preset wind speed signal, and E1 < E2 < E3 < E4; Preset the blade length matrix F of the wind turbine generator, set F (F1, F2, F3, F4, F5), where F1 is the first preset blade length, F2 is the second preset blade length, F3 is the third preset blade length, F4 is the fourth preset blade length, F5 is the fifth preset blade length, and F1 < F2 < F3 < F4 < F5; The blade length of the wind turbine is set according to the relationship between the wind speed signal D and each preset wind speed signal: When D<E1, the first preset blade length F1 is selected as the blade length of the wind turbine; When E1≤D<E2, the second preset blade length F2 is selected as the blade length of the wind turbine; When E2≤D<E3, the third preset blade length F3 is selected as the blade length of the wind turbine; When E3≤D<E4, the fourth preset blade length F4 is selected as the blade length of the wind turbine; When E4≤D, the fifth preset blade length F5 is selected as the blade length of the wind turbine.

4. The control method for a wind turbine generator set according to claim 3, characterized in that: After setting the blade length of the wind turbine according to the wind speed signal D, the method further includes: Obtain an average wind speed signal J within a preset time period, and set a second speed of the wind turbine generator according to the average wind speed signal J. Preset average wind speed signal matrix G, set G (G1, G2, G3, G4), where G1 is the first preset average wind speed signal, G2 is the second preset average wind speed signal, G3 is the third preset average wind speed signal, G4 is the fourth preset average wind speed signal, and G1<G2<G3<G4; Preset a second speed matrix K of the wind turbine generator, set K (K1, K2, K3, K4, K5), wherein K1 is the first preset second speed, K2 is the second preset second speed, K3 is the third preset second speed, K4 is the fourth preset second speed, K5 is the fifth preset second speed, and K1<K2<K3<K4<K5; The second speed of the wind turbine generator is set according to the relationship between the average wind speed signal J and each preset average wind speed signal: When D<G1, the first preset second speed K1 is selected as the second speed of the wind turbine; When G1≤D<G2, the second preset second speed K2 is selected as the second speed of the wind turbine generator; When G2≤D<G3, the third preset second speed K3 is selected as the second speed of the wind turbine generator; When G3≤D<G4, the fourth preset second speed K4 is selected as the second speed of the wind turbine generator; When G4≤D, the fifth preset second rotational speed K5 is selected as the second rotational speed of the wind turbine.

5. The control method for a wind turbine generator set according to claim 4, characterized in that: After setting the second rotation speed of the wind turbine generator according to the average wind speed signal J, the method further includes: Obtaining a third power L of the wind turbine generator set, and judging whether it is necessary to correct the second rotation speed of the wind turbine generator according to the relationship between the third power L and the preset second power. If the third power generation L is greater than or equal to the preset second power generation, it is determined that there is no need to correct the second rotation speed of the wind turbine generator; If the third generated power L is less than the preset second generated power, it is determined that the second rotational speed of the wind turbine generator needs to be corrected.

6. The control method for a wind turbine generator set according to claim 5, characterized in that: When the second rotation speed of the wind turbine is corrected, it includes: A third power generation matrix M is preset, and M (M1, M2, M3, M4) is set, wherein M1 is the first preset third power generation, M2 is the second preset third power generation, M3 is the third preset third power generation, and M4 is the fourth preset third power generation, and M1<M2<M3<M4; A second speed correction coefficient matrix h of the preset wind turbine generator is set to h (h1, h2, h3, h4, h5), wherein h1 is the first preset second speed correction coefficient, h2 is the second preset second speed correction coefficient, h3 is the third preset second speed correction coefficient, h4 is the fourth preset second speed correction coefficient, h5 is the fifth preset second speed correction coefficient, and 1.2<h1<h2<h3<h4<h5<1.4; When the second speed of the wind turbine generator is set to the i-th preset second speed Ki, i=1, 2, 3, 4, 5, the second speed of the wind turbine generator is corrected according to the relationship between the third power generation L and each preset third power generation: When L<M1, the first preset second speed correction coefficient h1 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h1; When M1≤L<M2, the second preset second speed correction coefficient h2 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h2; When M2≤L<M3, the third preset second speed correction coefficient h3 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h3; When M3≤L<M4, the fourth preset second speed correction coefficient h4 is selected to correct the i-th preset second speed Ki, and the second speed of the wind turbine after correction is Ki*h4; When M4≤L, the fifth preset second rotational speed correction coefficient h5 is selected to correct the i-th preset second rotational speed Ki, and the second rotational speed of the wind turbine after correction is Ki*h5.

7. The control method for a wind turbine generator set according to claim 6, characterized in that: After the second rotation speed of the wind turbine generator is corrected according to the relationship between the third power generation L and each preset second power generation, the method further includes: obtaining a fourth power generation of the wind turbine generator set, and determining whether an alarm needs to be issued according to a relationship between the fourth power generation and the preset second power generation, If the fourth power generation is greater than or equal to the preset second power generation, it is determined that no alarm needs to be issued; If the fourth generated power is less than the preset second generated power, it is determined that an alarm needs to be issued, and an alarm signal is generated.

8. A control system for a wind turbine generator set, applied to the control method for a wind turbine generator set as claimed in any one of claims 1 to 7, characterized in that: The system comprises: The acquisition module is used to collect the wind speed signal at the location of the wind turbine generator set in real time; a judging module, configured to judge the operating environment of the wind turbine generator set according to the relationship between the wind speed signal and a preset wind speed signal, When the wind speed signal is less than or equal to the preset wind speed signal, it is determined that the wind turbine generator set is in a low wind speed operating environment, and a first power generation power of the wind turbine generator set in the low wind speed operating environment is obtained; When the wind speed signal is greater than the preset wind speed signal, it is determined that the wind turbine generator set is in a high wind speed operating environment, and a second power generation power of the wind turbine generator set in the high wind speed operating environment is obtained; a setting module, configured to set a first control instruction of the wind generator set according to a first power generation of the wind generator set, and to set a second control instruction of the wind generator set according to a second power generation of the wind generator set; A control module is used to control the wind turbine generator set according to the first control instruction or the second control instruction.

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