Self-use electrical equipment control method and device for wind turbine generator system

Abstract

The embodiment of the present invention provides a method and device for controlling the self-powered equipment of a wind turbine generator set, belonging to the field of wind turbine control technology. The method comprises: obtaining the operating status of the wind turbine generator set and the environmental parameters of the self-powered equipment, wherein the self-powered equipment includes first-category self-powered equipment and second-category self-powered equipment; determining the switching status of each power-consuming equipment based on the operating status of the wind turbine generator set, including the equipment switching status and the equipment switching status; determining the equipment operating limit of the first-category self-powered equipment in the equipment switching status based on the operating status of the wind turbine generator set and the environmental parameters; determining the equipment operating limit of the second-category self-powered equipment in the equipment switching status based on the environmental parameters; and controlling the operation of each power-consuming equipment based on the switching status of the self-powered equipment, or based on the switching status and the equipment operating limit of the self-powered equipment. The present invention has the advantages of reducing the power consumption of the self-powered equipment, extending the service life of the self-powered equipment, and reducing the failure rate of the self-powered equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine self-powered equipment control, and in particular to a wind turbine self-powered equipment control method, a wind turbine self-powered equipment control device, and a machine-readable storage medium. Background Art

[0002] As a non-fossil energy source, wind power generation is experiencing rapid development. The industry is mainly focusing on reducing the cost per kilowatt-hour by increasing the power generation capacity of the entire unit. However, the management and control of the entire unit's own electricity consumption is not sophisticated and intelligent enough. In addition to the main electrical equipment in the transmission chain of the entire unit, due to the generally harsh operating environment of wind turbines, related temperature and humidity control, lighting, fire protection, monitoring and other equipment need to be configured. However, the initial design of the wind turbine main control system did not fully consider the commissioning and disconnection of the auxiliary equipment of the entire unit under different operating conditions. All self-powered equipment in the unit is in a energized standby state regardless of the operating conditions of the wind turbine. Some equipment is still in working condition when the unit is shut down. Long-term energization of electrical components will accelerate the aging of contacts and equipment, reducing the service life of electrical components. In addition, equipment failure will not only lead to an increase in spare parts consumption, but also cause frequent shutdowns of the unit, which not only increases its own power consumption but also affects the power generation of the entire unit. Summary of the Invention

[0003] The purpose of the embodiments of the present invention is to provide a method and device for controlling the self-powered equipment of a wind turbine generator set. The method and device for controlling the self-powered equipment of a wind turbine generator set are used to solve the problem that the self-powered equipment of the wind turbine generator set is in a energized and ready-to-run state regardless of the operating conditions of the wind turbine generator set, the electrical components are energized for a long time, the aging of contacts and equipment is accelerated, the service life of electrical components is reduced, the equipment failure rate is high, the spare parts consumption is increased, the unit is frequently shut down, the self-powered energy consumption is increased, and the power generation of the entire unit is affected.

[0004] To achieve the above objectives, an embodiment of the present invention provides a method for controlling self-powered equipment of a wind turbine generator, comprising:

[0005] Acquire the operating status of the wind turbine generator set and the environmental parameters of the self-powered equipment, wherein the self-powered equipment includes at least the first type of self-powered equipment and the second type of self-powered equipment;

[0006] Based on the operating status of the wind turbine generator set, determining the switching status of each power-consuming device, wherein the switching status includes the device switching status and the device disconnection status;

[0007] Determine, based on the wind turbine operating state and the environmental parameters, the equipment operating limit of the first type of self-use electric equipment in the equipment-in-use state; determine, based on the environmental parameters, the equipment operating limit of the second type of self-use electric equipment in the equipment-in-use state;

[0008] Based on the switching status of the self-powered equipment, the operation of each power-consuming equipment is controlled; or based on the switching status of the self-powered equipment and the equipment operation limit, the operation of each power-consuming equipment is controlled.

[0009] Optionally, the self-use electrical equipment includes at least: temperature control equipment, humidity control equipment and lighting equipment;

[0010] The first category of self-use electrical equipment includes: temperature control equipment;

[0011] The second category of self-use electrical equipment includes: humidity control equipment and lighting equipment.

[0012] Optionally, the operating status of the wind turbine generator set includes: shutdown status, standby status, startup status, grid-connected status, shutdown process and maintenance status.

[0013] Optional, ambient temperature value, ambient humidity value, and ambient brightness value.

[0014] Optionally, determining the switching status of respective electrical equipment based on the operating status of the wind turbine generator system includes:

[0015] If the wind turbine generator system is in a shutdown state or a standby state, the temperature control device, the humidity control device, and the lighting device are determined to be in a device cut-off state;

[0016] If the wind turbine generator system is in any of the following operating states: startup state, grid-connected state, or shutdown state, the lighting device is determined to be in the device disconnection state, and the temperature control device and the humidity control device are in the device activation state;

[0017] If the wind turbine generator system is in a maintenance state, the temperature control device and the humidity control device are determined to be in a device disconnection state, and the lighting device is determined to be in a device input state.

[0018] Optionally, the first type of self-powered equipment is a temperature control device; and determining the equipment operating limit of the first type of self-powered equipment in the equipment-in-use state based on the operating state of the wind turbine generator set and the environmental parameters includes:

[0019] If the wind turbine generator set is in the startup state and the ambient temperature of the temperature control device is greater than the preset temperature, the device operation limit of the temperature control device is determined to be a first preset power; if the wind turbine generator set is in the startup state and the ambient temperature of the temperature control device is less than or equal to the preset temperature, the device operation limit of the temperature control device is determined to be a second preset power;

[0020] If the wind turbine generator set is in a grid-connected state and the ambient temperature of the temperature control device is greater than a preset temperature, the device operation limit of the temperature control device is determined to be a third preset power; if the wind turbine generator set is in a grid-connected state and the ambient temperature of the temperature control device is less than or equal to the preset temperature, the device operation limit of the temperature control device is determined to be a first preset power;

[0021] If the wind turbine generator set is in a shutdown state and the ambient temperature of the temperature control device is greater than a preset temperature, the device operation limit of the temperature control device is determined to be a fourth preset power; if the wind turbine generator set is in a shutdown state and the ambient temperature of the temperature control device is less than or equal to the preset temperature, the device operation limit of the temperature control device is determined to be a second preset power;

[0022] The third preset power is greater than the fourth preset power, the fourth preset power is greater than the first preset power, and the first preset power is greater than the second preset power.

[0023] Optionally, the second type of self-powered equipment is a humidity control equipment; and determining the equipment operating limit of the second type of self-powered equipment in the equipment-in-use state based on the environmental parameters includes:

[0024] If the humidity value of the environment in which the humidity control device is located is less than the preset humidity value, determining that the device operation limit of the humidity control device is a fifth preset power;

[0025] If the humidity value of the environment in which the humidity control device is located is greater than or equal to the preset humidity value, determining that the device operation limit of the humidity control device is a sixth preset power;

[0026] The fifth preset power is less than the sixth preset power.

[0027] Optionally, the second-category self-powered equipment is a lighting device; and determining, based on the environmental parameters, an equipment operating limit of the second-category self-powered equipment in an equipment-in-use state includes:

[0028] If the brightness value of the environment in which the lighting device is located is less than the preset brightness value, determining that the device operation limit value of the lighting device is a seventh preset power;

[0029] If the brightness value of the environment in which the lighting device is located is greater than or equal to the preset brightness value, determining that the device operation limit value of the lighting device is an eighth preset power;

[0030] The seventh preset power is greater than the eighth preset power.

[0031] An embodiment of the present invention further provides a self-powered equipment control device for a wind turbine generator system, comprising:

[0032] An acquisition module, configured to acquire the operating status of the wind turbine generator set and environmental parameters of the self-powered equipment, wherein the self-powered equipment includes at least first-category self-powered equipment and second-category self-powered equipment;

[0033] A first determining module is configured to determine the switching status of respective power-consuming devices based on the operating status of the wind turbine generator set, wherein the switching status includes a device switching status and a device disconnection status;

[0034] A second determining module is configured to determine an equipment operating limit of the first type of self-use electrical equipment in an equipment-in-use state based on the operating state of the wind turbine generator set and the environmental parameters;

[0035] a third determining module, configured to determine, based on the environmental parameters, an equipment operation limit of the second type of self-use electrical equipment in an equipment-in-use state;

[0036] The control module is used to control the operation of each power-consuming device based on the switching status of the power-consuming device; or to control the operation of each power-consuming device based on the switching status of the power-consuming device and the device operation limit.

[0037] On the other hand, the present invention provides a machine-readable storage medium having stored thereon instructions for causing a machine to execute the above-mentioned method for controlling self-powered equipment of a wind turbine generator set.

[0038] This technical solution controls the switching status of self-power equipment and optimizes the operating limits of self-power equipment through the operating status of the wind turbine set and the environmental parameters of the self-power equipment, thereby realizing unified and refined management and intelligent regulation of self-power equipment. It can effectively solve the problem of high self-power consumption of wind turbines, thereby extending the service life of self-power equipment, reducing the failure rate of self-power equipment, increasing the utilization hours of wind turbines, and improving the economic operation level of wind turbines.

[0039] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0041] Figure 1 It is a flow chart of the method for controlling the self-use electrical equipment of a wind turbine generator set provided by the present invention;

[0042] Figure 2 This is a flowchart of a method for controlling self-use electrical equipment of a wind turbine generator system provided by the present invention;

[0043] Figure 3 It is a structural schematic diagram of the self-powered equipment control device of the wind turbine generator set provided by the present invention.

[0044] Description of Reference Numerals

[0045] 10-acquisition module; 20-first determination module; 30-second determination module;

[0046] 40-third determination module; 50-control module. DETAILED DESCRIPTION

[0047] The following describes the specific implementation of the embodiment of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention and is not used to limit the embodiment of the present invention.

[0048] The terms "first", "second", "third", etc. are only used for distinction and description and should not be understood as indicating or implying relative importance.

[0049] In addition, terms such as "roughly" and "basically" are intended to illustrate that the relevant content does not require absolute precision, but rather can have certain deviations. For example, "roughly equal" does not only mean absolute equality. Since it is difficult to achieve absolute "equality" in actual production and operation, there are generally certain deviations. Therefore, in addition to absolute equality, "roughly equal" also includes the above-mentioned situation where there are certain deviations. Taking this as an example, in other cases, unless otherwise specified, terms such as "roughly" and "basic" have similar meanings to the above. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Figure 1 FIG. 2 is a flow chart of the method for controlling the self-use electric equipment of a wind turbine generator set provided by the present invention; FIG. 3 is a flow chart of the method for controlling the self-use electric equipment of a wind turbine generator set provided by the present invention.

[0051] like Figure 1-2 As shown, this embodiment provides a method for controlling self-powered equipment of a wind turbine generator set, including:

[0052] Step 101: Acquire the operating status of a wind turbine and environmental parameters of self-use electrical equipment, wherein the self-use electrical equipment includes at least first-category self-use electrical equipment and second-category self-use electrical equipment;

[0053] Step 102: Based on the operating status of the wind turbine generator, determine the switching status of each power-consuming device, wherein the switching status includes the device switching status and the device disconnection status;

[0054] Step 103: Based on the wind turbine operating state and the environmental parameters, determine the equipment operating limit of the first type of self-use electric equipment in the equipment-in-use state; based on the environmental parameters, determine the equipment operating limit of the second type of self-use electric equipment in the equipment-in-use state;

[0055] Step 104: Based on the switching status of the self-powered equipment, the operation of the respective power-consuming equipment is controlled; or based on the switching status of the self-powered equipment and the equipment operation limit, the operation of the respective power-consuming equipment is controlled.

[0056] Specifically, in the prior art, a unified control method is usually adopted for the self-powered equipment of a wind turbine generator set, that is, each self-powered equipment works or is in standby mode at the same time. However, long-term continuous operation and standby will increase the power consumption of the self-powered equipment and reduce the service life of the self-powered equipment. Therefore, this plan proposes: first, classify the self-power equipment according to the function of each self-power equipment, mainly into the first category of self-power equipment and the second category of self-power equipment, among which, the first category of self-power equipment is not only affected by the operating status of the wind turbine, but also by environmental factors during operation, and the second category of self-power equipment is basically only affected by the environment in which it is located during operation. Therefore, based on different parameters, different control logics are used to match different operating limits for each self-power equipment of the first category and the second category of self-power equipment, and the operation of each self-power equipment is controlled based on the corresponding operating limits of each power equipment, so as to realize unified and refined management and intelligent adjustment of the self-power equipment, which can effectively solve the problem of high self-consumption of wind turbines, thereby extending the service life of self-power equipment, reducing the failure rate of self-power equipment, increasing the utilization hours of wind turbines, and improving the economic operation level of wind turbines.

[0057] Furthermore, the self-use electrical equipment includes at least: temperature control equipment, humidity control equipment and lighting equipment;

[0058] The first category of self-use electrical equipment includes: temperature control equipment;

[0059] The second category of self-use electrical equipment includes: humidity control equipment and lighting equipment.

[0060] Specifically, the temperature control equipment is a device for adjusting the temperature of the environment in which the wind turbine is located, so as to dissipate the heat generated by the wind turbine to the outside world, so as to ensure that the wind turbine is in a normal operating temperature range. The temperature control equipment may include air conditioners, fans, water cooling equipment, etc., and their installation locations and installation methods are common knowledge among technicians in this field, and will not be repeated here. The humidity control equipment is a device for adjusting the humidity of the environment in which the wind turbine is located, so as to ensure that the wind turbine is in a normal operating humidity range, to avoid short circuits and unit corrosion caused by excessive humidity, etc., so as to increase the service life of the unit. The humidity control equipment may include dehumidifiers, dehumidifiers, etc., and their installation locations and installation methods are common knowledge among technicians in this field, and will not be repeated here. The lighting equipment is used to increase the brightness inside the wind turbine, such as the brightness inside the tower bottom, tower, cabin and each electrical cabinet. The installation location and installation method are common knowledge among technicians in this field, and will not be repeated here.

[0061] In another embodiment, the self-use electrical equipment further includes fire prevention equipment and monitoring equipment. The fire prevention equipment is used to spray fire extinguishing agents to prevent the spread of fire in the event of a fire. It includes a controller, an actuator, and a fire extinguisher. When the controller receives a command, the actuator activates the fire extinguisher to spray the fire extinguishing agent. Its location and installation method are common knowledge among those skilled in the art and are not further described here. The monitoring equipment is used to collect sound and video signals within the wind turbine. It includes sound sensors, cameras, and other devices. Its location and installation method are common knowledge among those skilled in the art and are not further described here.

[0062] Furthermore, the wind turbine operating status includes: shutdown status, standby status, startup status, grid-connected status, shutdown process and maintenance status.

[0063] Specifically, the shutdown state is when the wind turbine is operating at a slow speed without any faults and without power output. The blades are in the feathering position, the impeller is idling freely, and the generator speed is less than 2 rpm. In strong winds, the generator speed is less than 3 rpm. The standby state is the process of a wind turbine transitioning from the shutdown state to operation. Upon receiving a start command or when the self-start conditions are met, the wind turbine master control system issues a start command to the wind turbine converter. Upon receiving the start command, the converter performs a pre-charge. After the pre-charge voltage rises to a preset value, the grid-side and generator-side circuit breakers are closed. After the circuit breakers are closed, the converter sends a standby signal to the master control system. Upon receiving the run signal, the master control system controls the blades to shift from the shutdown position to the standby position. In the standby state, the blades are positioned at 89 degrees. The startup state occurs when the wind turbine's impeller speed reaches the set speed for a predetermined period of time, and the unit enters the speed increase phase. Specifically, before the speed reaches 8.8 rpm, the pitch speed is 1 degree / second, and after reaching 8.8 rpm, the pitch speed is 1.5 degrees / second. The wind turbine enters the grid-connected state when its rotor speed reaches the set grid-connected speed. The main control system receives the grid-connected signal and sends the required torque or current value to the converter. The converter executes according to the required torque or current value, and the wind turbine enters the power generation state. The shutdown process is when the main control system receives a manual shutdown command, a fault occurs, or there is an environmental fault such as high wind or low wind. The main control demand torque slope decreases, the blades feather at the set speed, and when the rotor speed falls below the set speed, the converter operation command is stopped, the converter stops modulation, and the unit enters the shutdown state when the rotor speed falls below the set shutdown speed. In the shutdown state, the maintenance command is triggered (usually triggered by the maintenance key), and the generator set enters the maintenance state; for a wind turbine in the standby state, when the maintenance key is turned to the maintenance position, the wind turbine enters the maintenance state after a 3-second delay; for a wind turbine in operation, when the maintenance key is turned to the maintenance position, the wind turbine first enters the shutdown state, and 45 seconds after the wind turbine is shut down, it enters the standby state, and after a 3-second delay, the wind turbine enters the maintenance state; for a wind turbine in the maintenance state, automatic yaw is not allowed, but manual yaw can be performed.

[0064] Furthermore, the environmental parameters include: an environmental temperature value, an environmental humidity value, and an environmental brightness value.

[0065] Specifically, since the wind turbine is in different operating stages, its own heat generation is different, and due to changes in the external environment, the operating mode of the temperature control equipment when performing temperature adjustment is also different. Therefore, when controlling the temperature control equipment, it is necessary to refer to the ambient temperature value of the environment in which the temperature control equipment is located; similarly, the control of humidity control equipment and lighting equipment is also affected by the external environment, so it is necessary to obtain the ambient humidity value and ambient brightness value.

[0066] Furthermore, based on the operating status of the wind turbine generator set, determining the switching status of respective electrical equipment includes:

[0067] If the wind turbine generator system is in a shutdown state or a standby state, the temperature control device, the humidity control device, and the lighting device are determined to be in a device cut-off state;

[0068] If the wind turbine generator system is in any of the following operating states: startup state, grid-connected state, or shutdown state, the lighting device is determined to be in the device disconnection state, and the temperature control device and the humidity control device are in the device activation state;

[0069] If the wind turbine generator system is in a maintenance state, the temperature control device and the humidity control device are determined to be in a device disconnection state, and the lighting device is determined to be in a device input state.

[0070] Specifically, when a wind turbine is in shutdown or standby mode, it has fewer operating devices and a lower impeller speed. The heat generated by its own temperature (such as bearing rotation and electrical work) is limited. At this time, the temperature can be reduced by its own heat dissipation, and there is no need for temperature control, humidity control, or lighting. Therefore, the temperature control equipment, humidity control equipment, and lighting equipment are in the equipment cut-off state. In addition, when the wind turbine is in the startup state, the speed of the impeller and other equipment gradually increases, and the temperature generated also gradually increases. Therefore, temperature control is required through the temperature control equipment. In order to ensure that the humidity of the environment in which the wind turbine is located is not too high, the humidity is adjusted through the humidity control equipment, and the lighting equipment is in the cut-off state. When the wind turbine is in the grid-connected state, the turbine is in the power generation state, and the heat generated reaches a peak, which requires temperature control through the temperature control equipment. When the wind turbine is in the shutdown process, the impeller speed slowly decreases. Although the newly added heat generation is decreasing, there is still a certain amount of residual heat in the turbine itself, which also requires temperature control by the temperature control equipment. Finally, when the wind turbine is in maintenance status, the wind turbine is working and generates less heat. Therefore, the temperature control equipment and humidity control equipment are in the equipment cut-off state. However, in order to facilitate maintenance personnel to enter the wind turbine for maintenance, the lighting equipment is set to the equipment-on state to increase the lighting brightness.

[0071] In another embodiment, to ensure wind turbine operational safety, fire prevention and monitoring equipment are set to be in constant operation regardless of the wind turbine's operating state. This ensures that fire prevention equipment can be promptly extinguished in the event of a wind turbine fire. The monitoring equipment can capture internal audio and video surveillance information for remote monitoring and storage within the control room. Based on the collected audio and video information, fault analysis can be performed to determine whether the wind turbine is experiencing an anomaly. Therefore, fire prevention and monitoring equipment must operate in real time.

[0072] Furthermore, the first type of self-use electric equipment is a temperature control device; based on the operating state of the wind turbine generator set and the environmental parameters, determining the equipment operating limit of the first type of self-use electric equipment in the equipment commissioning state includes:

[0073] If the wind turbine generator set is in the startup state and the ambient temperature of the temperature control device is greater than the preset temperature, the device operation limit of the temperature control device is determined to be a first preset power; if the wind turbine generator set is in the startup state and the ambient temperature of the temperature control device is less than or equal to the preset temperature, the device operation limit of the temperature control device is determined to be a second preset power;

[0074] If the wind turbine generator set is in a grid-connected state and the ambient temperature of the temperature control device is greater than a preset temperature, the device operation limit of the temperature control device is determined to be a third preset power; if the wind turbine generator set is in a grid-connected state and the ambient temperature of the temperature control device is less than or equal to the preset temperature, the device operation limit of the temperature control device is determined to be a first preset power;

[0075] If the wind turbine generator set is in a shutdown state and the ambient temperature of the temperature control device is greater than a preset temperature, the device operation limit of the temperature control device is determined to be a fourth preset power; if the wind turbine generator set is in a shutdown state and the ambient temperature of the temperature control device is less than or equal to the preset temperature, the device operation limit of the temperature control device is determined to be a second preset power;

[0076] The third preset power is greater than the fourth preset power, the fourth preset power is greater than the first preset power, and the first preset power is greater than the second preset power.

[0077] Specifically, since the wind turbine generates the most heat when it is in the grid-connected state, its own heat generation gradually increases when it is in the startup state, and when it is in the shutdown process, although the newly added heat generation is small, there is a lot of waste heat. Therefore, it is necessary to use temperature control equipment to adjust the temperature to help the wind turbine dissipate heat to ensure that the wind turbine operates at a normal temperature. However, due to the differences in the ambient temperature of the wind turbine (such as different seasons of the year, different times of the day and different weather, the ambient temperature is different), it is necessary to control the wind turbine in different operating states and different ambient temperatures.

[0078] When the wind turbine generator set is in the startup state and the ambient temperature of the temperature control device is greater than the preset temperature (e.g., at noon, the ambient temperature is relatively high), the device operation limit of the temperature control device is determined to be the first preset power; if the wind turbine generator set is in the startup state and the ambient temperature of the temperature control device is less than or equal to the preset temperature (e.g., in the morning, the ambient temperature is relatively low), the device operation limit of the temperature control device is determined to be the second preset power. Since the external ambient temperature is high at noon, the heat generated by the wind turbine generator set itself cannot be quickly dissipated to the outside, and therefore the operating power of the temperature control device needs to be set to the first preset power, and the first preset power is greater than the second preset power;

[0079] Similarly, when the wind turbine is in the grid-connected state, the heat generated by itself reaches a peak value, and the ambient temperature of the temperature control device is greater than the preset temperature value (such as at noon, the ambient temperature is relatively high). The wind turbine cannot dissipate heat through natural heat dissipation and needs to be assisted by the temperature control device to dissipate heat. In this case, the equipment operation limit is set to the third preset power. If the ambient temperature of the temperature control device is less than or equal to the preset temperature value (such as in the morning, the ambient temperature is relatively low), but due to the large amount of heat generated by itself, the equipment operation limit of the temperature control device needs to be set to the first preset power, and the third preset power is greater than the first preset power.

[0080] Similarly, when the wind turbine is in the shutdown state, the heat generated by the wind turbine is decreasing, but there is still a certain amount of residual heat, which also requires the thermostat to assist in heat dissipation. If the ambient temperature of the thermostat is greater than the preset temperature (such as at noon, when the ambient temperature is relatively high), the operating limit of the thermostat is set to the fourth preset power. If the ambient temperature of the thermostat is less than or equal to the preset temperature (such as in the morning, when the ambient temperature is relatively low), the operating limit of the thermostat is set to the second preset power, and the fourth preset power is greater than the second preset power. More specifically, the operating limit of the thermostat is: the third preset power is greater than the fourth preset power, the fourth preset power is greater than the first preset power, and the first preset power is greater than the second preset power.

[0081] Furthermore, the second type of self-use electric equipment is a humidity control equipment; based on the environmental parameters, determining the equipment operation limit of the second type of self-use electric equipment in the equipment-in-use state includes:

[0082] If the humidity value of the environment in which the humidity control device is located is less than the preset humidity value, determining that the device operation limit of the humidity control device is a fifth preset power;

[0083] If the humidity value of the environment in which the humidity control device is located is greater than or equal to the preset humidity value, determining that the device operation limit of the humidity control device is a sixth preset power;

[0084] The fifth preset power is less than the sixth preset power.

[0085] Specifically, excessive humidity in the wind turbine environment will accelerate the corrosion of the unit and reduce the service life of the wind turbine. Therefore, the humidity value of the environment in the wind turbine is assisted by adjusting the humidity value in the wind turbine. However, since the humidity value in the wind turbine changes with the humidity in the natural environment, after rain or other weather, the humidity in the wind turbine is already greater than or equal to the preset humidity value. After the humidity value in the wind turbine is reduced by the humidity control device, the humidity in the wind turbine may increase. Therefore, the humidity control device needs to work in a high power state all the time, which greatly increases the power consumption. However, the humidity value inside the wind turbine may still be higher than the preset humidity value. Therefore, the humidity control device adopts the sixth preset power to avoid the humidity value inside the wind turbine from continuing to rise. Until the humidity value of the environment in which the humidity control device is located is less than the preset humidity value, the fifth preset power is adopted to reduce the working power of the humidity control device, thereby reducing power consumption, wherein the fifth preset power is less than the sixth preset power.

[0086] Furthermore, the second type of self-use electric equipment is a lighting device; and based on the environmental parameters, determining the equipment operating limit of the second type of self-use electric equipment in the equipment-in-use state includes:

[0087] If the brightness value of the environment in which the lighting device is located is less than the preset brightness value, determining that the device operation limit value of the lighting device is a seventh preset power;

[0088] If the brightness value of the environment in which the lighting device is located is greater than or equal to the preset brightness value, determining that the device operation limit value of the lighting device is an eighth preset power;

[0089] The seventh preset power is greater than the eighth preset power.

[0090] Specifically, since the wind turbine is in maintenance status, the outside brightness may be lower in the morning and evening and higher at noon. Therefore, when the wind turbine enters the maintenance status, the power is controlled by the ambient brightness value of the lighting equipment, including setting the seventh preset power and the eighth preset power, and the seventh preset power is greater than the eighth preset power; if the ambient brightness value of the lighting equipment is less than the preset brightness value, it means that the environment is darker, and the equipment operation limit of the lighting equipment needs to adopt the seventh preset power with a larger power; if the ambient brightness value of the lighting equipment is greater than or equal to the preset brightness value, it means that the environment is brighter, and the brightness generated by the lighting equipment can be appropriately reduced, so the equipment operation limit of the lighting equipment can be set to the eighth preset power.

[0091] Figure 3 This is a schematic diagram of the structure of the self-powered equipment control device of the wind turbine provided by the present invention. Figure 3 As shown, an embodiment of the present invention provides a self-powered equipment control device for a wind turbine generator set, comprising:

[0092] An acquisition module 10 is configured to acquire the operating status of the wind turbine and environmental parameters of the self-powered equipment, wherein the self-powered equipment includes at least first-category self-powered equipment and second-category self-powered equipment;

[0093] A first determining module 20 is configured to determine the switching status of respective power-consuming devices based on the operating status of the wind turbine generator set, wherein the switching status includes a device switching status and a device disconnection status;

[0094] A second determining module 30 is configured to determine an equipment operating limit of the first type of self-use electrical equipment in an equipment-in-use state based on the operating state of the wind turbine generator set and the environmental parameters;

[0095] A third determining module 40 is configured to determine, based on the environmental parameters, an equipment operation limit of the second type of self-use electrical equipment in an equipment-in-use state;

[0096] The control module 50 is used to control the operation of each electric device based on the switching status of the electric device; or to control the operation of each electric device based on the switching status of the electric device and the device operation limit.

[0097] An embodiment of the present invention further provides a machine-readable storage medium having stored thereon instructions for causing a machine to execute the above-mentioned method for controlling self-powered equipment of a wind turbine generator set.

[0098] The above describes in detail the optional implementation methods of the embodiments of the present invention in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation methods. Within the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the scope of protection of the embodiments of the present invention.

[0099] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0100] Those skilled in the art will understand that all or part of the steps in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a program, which is stored in a storage medium and includes a number of instructions for causing a single-chip microcomputer, chip or processor to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program code.

[0101] In addition, various implementations of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed in the embodiments of the present invention.

Claims

1. A method for controlling self-powered equipment of a wind turbine generator set, characterized in that: include: Acquire the operating status of the wind turbine generator set and the environmental parameters of the self-powered equipment, wherein the self-powered equipment includes at least the first type of self-powered equipment and the second type of self-powered equipment; The self-use electrical equipment includes at least: temperature control equipment, humidity control equipment and lighting equipment; the first category of self-use electrical equipment includes: temperature control equipment; the second category of self-use electrical equipment includes: humidity control equipment and lighting equipment; the environmental parameters include: ambient temperature value, ambient humidity value and ambient brightness value; Based on the operating status of the wind turbine, the switching status of each power-consuming device is determined; the operating status of the wind turbine includes: shutdown state, standby state, startup state, grid-connected state, shutdown process and maintenance state; the switching status includes equipment input state and equipment disconnection state; Determine, based on the wind turbine operating state and the environmental parameters, the equipment operating limit of the first type of self-use electric equipment in the equipment-in-use state; determine, based on the environmental parameters, the equipment operating limit of the second type of self-use electric equipment in the equipment-in-use state; Based on the switching status and equipment operating limits of the first-category self-use electric equipment, the operation of each first-category self-use electric equipment is controlled; based on the switching status and equipment operating limits of the second-category self-use electric equipment, the operation of each second-category self-use electric equipment is controlled; Wherein, determining the switching status of respective power-consuming equipment based on the operating status of the wind turbine generator set includes: If the wind turbine generator system is in a shutdown state or a standby state, the temperature control device, the humidity control device, and the lighting device are determined to be in a device cut-off state; If the wind turbine generator system is in any of the following operating states: startup state, grid-connected state, or shutdown state, the lighting device is determined to be in the device disconnection state, and the temperature control device and the humidity control device are in the device activation state; If the wind turbine generator system is in a maintenance state, the temperature control device and the humidity control device are determined to be in a device disconnection state, and the lighting device is determined to be in a device input state.

2. The method according to claim 1, characterized in that The first type of self-use electric equipment is a temperature control device; based on the operating state of the wind turbine and the environmental parameters, determining the equipment operating limit of the first type of self-use electric equipment in the equipment operation state includes: If the wind turbine generator set is in the startup state and the ambient temperature of the temperature control device is greater than the preset temperature, the device operation limit of the temperature control device is determined to be a first preset power; if the wind turbine generator set is in the startup state and the ambient temperature of the temperature control device is less than or equal to the preset temperature, the device operation limit of the temperature control device is determined to be a second preset power; If the wind turbine generator set is in a grid-connected state and the ambient temperature of the temperature control device is greater than a preset temperature, the device operation limit of the temperature control device is determined to be a third preset power; if the wind turbine generator set is in a grid-connected state and the ambient temperature of the temperature control device is less than or equal to the preset temperature, the device operation limit of the temperature control device is determined to be a first preset power; If the wind turbine generator set is in a shutdown state and the ambient temperature of the temperature control device is greater than a preset temperature, the device operation limit of the temperature control device is determined to be a fourth preset power; if the wind turbine generator set is in a shutdown state and the ambient temperature of the temperature control device is less than or equal to the preset temperature, the device operation limit of the temperature control device is determined to be a second preset power; The third preset power is greater than the fourth preset power, the fourth preset power is greater than the first preset power, and the first preset power is greater than the second preset power.

3. The method according to claim 1, characterized in that The second type of self-use electric equipment is a humidity control equipment. Based on the environmental parameters, the equipment operation limit of the second type of self-use electric equipment in the equipment operation state is determined, including: If the humidity value of the environment in which the humidity control device is located is less than the preset humidity value, determining that the device operation limit of the humidity control device is a fifth preset power; If the humidity value of the environment in which the humidity control device is located is greater than or equal to the preset humidity value, determining that the device operation limit of the humidity control device is a sixth preset power; The fifth preset power is less than the sixth preset power.

4. The method according to claim 1, wherein The second type of self-use electric equipment is lighting equipment. Based on the environmental parameters, the equipment operation limit of the second type of self-use electric equipment in the equipment operation state is determined, including: If the brightness value of the environment in which the lighting device is located is less than the preset brightness value, determining that the device operation limit value of the lighting device is a seventh preset power; If the brightness value of the environment in which the lighting device is located is greater than or equal to the preset brightness value, determining that the device operation limit value of the lighting device is an eighth preset power; The seventh preset power is greater than the eighth preset power.

5. A control device for self-use electric equipment of a wind turbine generator set, characterized in that: include: An acquisition module, configured to acquire the operating status of the wind turbine generator set and environmental parameters of the self-powered equipment, wherein the self-powered equipment includes at least first-category self-powered equipment and second-category self-powered equipment; The self-use electrical equipment includes at least: temperature control equipment, humidity control equipment and lighting equipment; the first category of self-use electrical equipment includes: temperature control equipment; the second category of self-use electrical equipment includes: humidity control equipment and lighting equipment; the environmental parameters include: ambient temperature value, ambient humidity value and ambient brightness value; A first determining module is configured to determine the switching status of respective power-consuming devices based on the operating status of the wind turbine generator set; the operating status of the wind turbine generator set includes: shutdown status, standby status, startup status, grid-connected status, shutdown process, and maintenance status; the switching status includes equipment switching status and equipment disconnection status; A second determining module is configured to determine an equipment operating limit of the first type of self-use electrical equipment in an equipment-in-use state based on the operating state of the wind turbine generator set and the environmental parameters; a third determining module, configured to determine, based on the environmental parameters, an equipment operation limit of the second type of self-use electrical equipment in an equipment-in-use state; a control module for controlling the operation of each first-category self-powered device based on the switching status and device operating limits of the first-category self-powered device, and for controlling the operation of each second-category self-powered device based on the switching status and device operating limits of the second-category self-powered device; Wherein, determining the switching status of respective power-consuming equipment based on the operating status of the wind turbine generator set includes: If the wind turbine generator system is in a shutdown state or a standby state, the temperature control device, the humidity control device, and the lighting device are determined to be in a device cut-off state; If the wind turbine generator system is in any of the following operating states: startup state, grid-connected state, or shutdown state, the lighting device is determined to be in the device disconnection state, and the temperature control device and the humidity control device are in the device activation state; If the wind turbine generator system is in a maintenance state, the temperature control device and the humidity control device are determined to be in a device disconnection state, and the lighting device is determined to be in a device input state.

6. A machine-readable storage medium having instructions stored thereon, the instructions being used to enable a machine to execute the method for controlling self-powered equipment of a wind turbine set according to any one of claims 1 to 4.

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