Control system of wind generating set

Abstract

The utility model discloses a wind generating set control system, and relates to the technical field of wind generating set control. The data acquisition module array is composed of a plurality of data acquisition module groups in parallel; the data acquisition module group is respectively mounted on the rotating platform and the generator cabin, and the data acquisition module array is in signal connection with the controller group; the controller set is in signal connection with the host, a wind generating set is installed in the generator cabin, and the host is in signal connection with the wind generating set through a start-stop device. According to the utility model, the data acquisition range comprises a rotating device, a cotyledon structure and a generator cabin of the wind generating set, so that synchronous acquisition of multi-measuring-point data can be realized, and synchronous acquisition of multi-channel data can be satisfied; data are collected through the wind speed sensor, the wind direction sensor and the sand flux sensor, the control requirement is met, the maintenance rate of fan blades is greatly reduced, the service life of a wind generating set is prolonged, and the cost of wind power generation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine control, and more specifically to a wind turbine control system. Background Art

[0002] With the rapid development of economy and society, traditional energy sources are becoming increasingly scarce. Wind power generation has unique advantages such as being clean, pollution-free, and renewable, and has received extensive attention from countries around the world. More and more wind energy is used for wind power generation. In recent years, the phenomenon of abandoned wind in newly built wind farms is serious. Through research data, it is found that the main reason is the insufficient humidity in the air, which is very dry, causing serious desertification of the soil and too high content of sand particles in the air. When the wind turbine operates, the blades will be affected by the sand particles in the flowing air, and the degree of wear far exceeds the design expected value, resulting in the blades of the wind turbine facing the situation of being scrapped in a short time. Therefore, real-time data collection for wind turbine control is an effective means to solve the problem.

[0003] At the same time, in real-time data collection, during the operation, maintenance, and repair of the wind turbine, it is necessary to collect the operation parameters of each component, and analyze the operation status of each component according to the collected operation parameters. Moreover, the main components of the wind turbine include the hub, nacelle, and impeller. These components are large in volume and far apart, which is not conducive to centralized data collection.

[0004] Therefore, how to propose a wind turbine control system, according to the characteristics of large amount, diversification, and complexity of the data collected by the wind turbine, conduct supporting data collection for the wind turbine, construct a wind turbine control system adapted to data collection, and conduct wind turbine operation control is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] In view of this, the utility model provides a wind turbine control system, which conducts supporting data collection for the wind turbine according to the characteristics of large amount, diversification, and complexity of the data collected by the wind turbine, constructs a wind turbine control system adapted to data collection, and conducts wind turbine operation control. To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A wind turbine control system includes: a main machine, a controller group, a data collection module array, a rotating platform, a generator nacelle, and a start-stop device;

[0007] The rotating platform is rotationally matched with the generator nacelle;

[0008] The data acquisition module array is composed of multiple data acquisition module groups in parallel. Each data acquisition module group includes several wind speed and direction sensors and sand flux detection sensors;

[0009] Each data acquisition module group is installed on a rotating platform and a generator nacelle respectively. The data acquisition module array is signal-connected to a controller group;

[0010] The controller group is signal-connected to a host computer. A wind power generation set is installed in the generator nacelle. The host computer is signal-connected to the wind power generation set through a start-stop device.

[0011] Optionally, the start-stop device includes: a primary frequency regulation controller of the generator set, a high-frequency load shedding controller, and a control switch. The control switch is signal-connected to the wind power generation set; the primary frequency regulation controller of the generator set and the high-frequency load shedding controller are respectively signal-connected to the wind power generation set, and the high-frequency load shedding controller is signal-connected to the control switch.

[0012] Optionally, it further includes: an A / D conversion module. One end of the A / D conversion module is connected to the controller group through a port. The other end of the A / D conversion module is connected to a data acquisition module array for detecting wind power signals and sand flux signals. The data acquisition module array is signal-connected to the controller group through the A / D conversion module.

[0013] Optionally, the wind speed and direction sensor is used to detect wind speed and direction signals, and the sand flux detection sensor is used to detect sand flux signals.

[0014] Optionally, the data acquisition module array includes: a first data acquisition module group, a second data acquisition module group, and a third data acquisition module group. The data acquisition module array is composed of the first data acquisition module group, the second data acquisition module group, and the third data acquisition module group in parallel. The first data acquisition module group, the second data acquisition module group, and the third data acquisition module group are all signal-connected to the controller group.

[0015] Optionally, the controller group includes a first controller, a second controller, and a third controller. The controller is an MCU microprocessor. The first controller, the second controller, and the third controller are respectively signal-connected to the host computer.

[0016] Optionally, the rotating platform includes a rotating device and at least one sub-blade structure.

[0017] Optionally, the rotating device is adaptively installed with a first controller and a first data acquisition module group for detecting the rotating device. The first controller is electrically connected to the first data acquisition module group and is used to receive and store the data collected by the first data acquisition module group;

[0018] The cotyledon structure is adapted to install a second controller and a second data acquisition module group for detecting the cotyledon structure. The second controller is electrically connected to the second data acquisition module group and is used to receive and store the data acquired by the second data acquisition module group.

[0019] Optionally, it further includes: a generator cabin adapted to install a third controller and a third data acquisition module group for detecting the generator cabin. The third controller is electrically connected to the third data acquisition module group and is used to receive and store the data acquired by the third data acquisition module group.

[0020] Optionally, it further includes: a first time calibration module and a second time calibration module. The first time calibration module is signal-connected to the first controller, and the second time calibration module is signal-connected to the second controller. The first controller and the second controller perform data time calibration through the first time calibration module and the second time calibration module respectively.

[0021] Through the above technical solutions, compared with the prior art, the present utility model discloses a control system for a wind turbine generator set, which has the following beneficial effects:

[0022] The present utility model provides a control system for a wind turbine generator set, including: a main machine, a controller group, a data acquisition module array, a rotating platform, a generator cabin and a start-stop device; the rotating platform is rotationally matched with the generator cabin; the data acquisition module array is composed of multiple data acquisition module groups in parallel, and each data acquisition module group includes several wind speed and direction sensors and sand flux detection sensors; the data acquisition module groups are respectively installed on the rotating platform and the generator cabin, and the data acquisition module array is signal-connected to the controller group; the controller group is signal-connected to the main machine, a wind turbine generator set is installed in the generator cabin, and the main machine is signal-connected to the wind turbine generator set through the start-stop device. The data acquisition range of the present utility model includes the rotating device, cotyledon structure and generator cabin of the wind turbine generator set, and can realize the synchronous acquisition of measured point data. Moreover, it can simultaneously meet the synchronous acquisition of multi-channel data. Through the acquisition of data by the wind speed sensor, wind direction sensor and sand flux sensor, the control requirements can be achieved, which can greatly reduce the maintenance rate of the wind blades, extend the service life of the wind turbine generator set, and reduce the cost of wind power generation. At the same time, once a harsh environment occurs, the stable start and stop of the wind turbine generator set can be realized through comprehensive control measures such as primary frequency modulation of the generator set primary frequency modulation controller and high-frequency load shedding controller, and the wind turbine generator set is subjected to supporting data acquisition according to the characteristics of large amount, diversification and complexity of the data acquired by the wind turbine generator set, a control system for a wind turbine generator set adapted to data acquisition is constructed and the operation of the wind turbine generator set is controlled. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0024] Figure 1 Schematic diagram of the control system structure of a wind turbine generator set provided by the present invention.

[0025] Figure 2 Expanded view of the control system structure of a wind turbine generator set provided by the present invention. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] An embodiment of the present invention discloses a control system for a wind turbine generator set, as Figure 1 shown, including: a main machine, a controller group, a data acquisition module array, a rotating platform, a generator nacelle, and a start-stop device;

[0028] The rotating platform is rotationally matched with the generator nacelle;

[0029] The data acquisition module array is composed of multiple data acquisition module groups in parallel. Each data acquisition module group includes several wind speed and direction sensors and sand flux detection sensors;

[0030] The data acquisition module groups are respectively installed on the rotating platform and the generator nacelle, and the data acquisition module array is signal-connected to the controller group;

[0031] The controller group is signal-connected to the main machine. A wind turbine generator set is installed in the generator nacelle, and the main machine is signal-connected to the wind turbine generator set through the start-stop device.

[0032] Further, the start-stop device includes: a primary frequency regulation controller for the generator set, a high-frequency load shedding controller, and a control switch. The control switch is signal-connected to the wind turbine generator set; the primary frequency regulation controller for the generator set and the high-frequency load shedding controller are respectively signal-connected to the wind turbine generator set, and the high-frequency load shedding controller is signal-connected to the control switch.

[0033] Further, the model of the host is FX2N-32MR. The host is signal-connected to the wind turbine generator set M1 through a start-stop device, and a plurality of warning lights are also provided on the host.

[0034] Further, it also includes: an A / D conversion module. One end of the A / D conversion module is connected to the controller group through a port, and the other end of the A / D conversion module is connected to a data acquisition module array for detecting wind force signals and sand flux signals. The data acquisition module array is signal-connected to the controller group through the A / D conversion module. The model of the A / D conversion module is FX2N-4AD.

[0035] Further, the wind speed and direction sensor is used to detect wind speed and direction signals, and the sand flux detection sensor is used to detect sand flux signals.

[0036] Further, the data acquisition module array includes: a first data acquisition module group, a second data acquisition module group, and a third data acquisition module group. The data acquisition module array is composed of the first data acquisition module group, the second data acquisition module group, and the third data acquisition module group in parallel, and the first data acquisition module group, the second data acquisition module group, and the third data acquisition module group are all signal-connected to the controller group.

[0037] Further, the controller group includes a first controller, a second controller, and a third controller. The controller is an MCU microprocessor. The first controller, the second controller, and the third controller are respectively signal-connected to the host. Specifically, the controller can also be a Siemens S7-200 series programmable controller.

[0038] Further, the rotating platform includes a rotating device and at least one sub-leaf structure.

[0039] Further, the rotating device is adaptively installed with a first controller and a first data acquisition module group for detecting the rotating device. The first controller is electrically connected to the first data acquisition module group and is used to receive and store the data collected by the first data acquisition module group;

[0040] The sub-leaf structure is adaptively installed with a second controller and a second data acquisition module group for detecting the sub-leaf structure. The second controller is electrically connected to the second data acquisition module group and is used to receive and store the data collected by the second data acquisition module group.

[0041] Further, it also includes: the generator nacelle is adaptively installed with a third controller and a third data acquisition module group for detecting the generator nacelle. The third controller is electrically connected to the third data acquisition module group and is used to receive and store the data collected by the third data acquisition module group.

[0042] In a specific embodiment, the rotating device further includes a first wireless communication module, and each of the sub-leaf structures includes a second wireless communication module. The second wireless communication module of each sub-leaf structure is in signal connection with the first wireless communication module; or, the rotating device further includes a plurality of first wireless communication modules, and each of the sub-leaf structures includes a second wireless communication module. The second wireless communication module of each sub-leaf structure is respectively in signal connection with the corresponding first wireless communication module in the rotating device;

[0043] In a specific embodiment, the rotating device further includes a first wireless communication module, and the generator compartment further includes a third wireless communication module. The rotating device and the generator compartment perform data transmission and communication through the first wireless communication module and the third wireless communication module to ensure data intercommunication.

[0044] Furthermore, it further includes: a first time calibration module and a second time calibration module. The first time calibration module is in signal connection with the first controller, the second time calibration module is in signal connection with the second controller, and the first controller and the second controller perform data time calibration through the first time calibration module and the second time calibration module respectively.

[0045] In a specific embodiment, a schematic diagram of the structure expansion of a wind turbine control system is as Figure 2 shown, and specifically includes:

[0046] The input end of the main machine is connected to the output end of the A / D conversion module. The input ends of the A / D conversion module are respectively connected to the output ends of the first controller, the second controller, and the third controller. The first controller is connected to the first data acquisition module group, the second controller is connected to the second data acquisition module group, and the third controller is connected to the third data acquisition module group;

[0047] The data acquisition module array is composed of a first data acquisition module group, a second data acquisition module group, and a third data acquisition module group in parallel to form a data acquisition module array; the first controller, the second controller, and the third controller are in parallel to form a controller group; the data acquisition module array is in signal connection with the controller group;

[0048] The rotating platform includes a rotating device and at least one sub - blade structure; the rotating device is adaptively installed with a first controller and a first data acquisition module group for detecting the rotating device, the first controller is electrically connected to the first data acquisition module group, and is used to receive and store the data collected by the first data acquisition module group; the sub - blade structure is adaptively installed with a second controller and a second data acquisition module group for detecting the sub - blade structure, the second controller is electrically connected to the second data acquisition module group, and is used to receive and store the data collected by the second data acquisition module group; the generator nacelle is adaptively installed with a third controller and a third data acquisition module group for detecting the generator nacelle, the third controller is electrically connected to the third data acquisition module group, and is used to receive and store the data collected by the third data acquisition module group;

[0049] The rotating device further includes a first wireless communication module, each sub - blade structure includes a second wireless communication module, and the second wireless communication module of each sub - blade structure is electrically connected to the first wireless communication module; or, the rotating device further includes a plurality of first wireless communication modules, each sub - blade structure includes a second wireless communication module, and the second wireless communication module of each sub - blade structure is respectively electrically connected to the corresponding first wireless communication module in the rotating device; the generator nacelle further includes a third wireless communication module, and the rotating device and the generator nacelle perform data transmission and communication through the first wireless communication module and the third wireless communication module;

[0050] The first time - calibration module is signal - connected to the first controller, the second time - calibration module is signal - connected to the second controller, and the first controller and the second controller perform data time - calibration through the first time - calibration module and the second time - calibration module respectively;

[0051] The start - stop device includes: a primary frequency regulation controller of the generator set, a high - frequency load shedding controller, and a control switch, and the control switch is signal - connected to the wind turbine generator set; the primary frequency regulation controller of the generator set and the high - frequency load shedding controller are respectively signal - connected to the wind turbine generator set, and the high - frequency load shedding controller is signal - connected to the control switch; the controller group is signal - connected to the host, the host collects signals through the controller group, a wind turbine generator set is installed in the generator nacelle, and the host is signal - connected to the wind turbine generator set through the start - stop device to control the start and stop of the wind turbine generator set.

[0052] In a specific embodiment, a control system of a wind turbine generator set operates as follows:

[0053] (1) The wind direction and speed sensor and the sand flux sensor are powered on, and respectively judge the environment where the wind turbine generator set is located, including data at the positions of the rotating device, the sub - blade structure, and the generator nacelle;

[0054] (2) Determine the wind speed. If the wind speed of the wind turbine is too high, the wind turbine shuts down; if the wind speed of the wind turbine is too low, the wind turbine does not operate and does not output voltage to the outside. When the wind speed is less than 3.3 m / s or greater than 43 m / s, the generator does not work and the wind speed does not meet the standard.

[0055] (3) If the wind speed of the wind turbine is normal, the wind turbine operates normally and outputs voltage to the outside. When the wind speed is between 3.3 m / s and 43 m / s, the wind speed meets the standard.

[0056] (4) After the wind speed condition is met, judge the wind direction. When the angle between the wind direction and the blade plane is greater than 14 degrees at startup, the wind direction does not meet the standard and the system stops running. At this time, the yaw gear ring acts to make the angle between the blade plane and the wind direction within -14 degrees to +14 degrees.

[0057] (5) After the wind direction is judged, judge the sand flux. When the number of impacts received by the sand flux sensor per second exceeds 4.9 times / s, the sand flux does not meet the standard; when the number of impacts received by the sand flux sensor per second is less than or equal to 4.9 times / s, the sand flux meets the standard and the wind turbine starts to work.

[0058] (6) The main machine collects signals through the controller group. When the detected data do not meet the operating conditions, the main machine stably controls the shutdown of the wind turbine through the primary frequency modulation controller and the high-frequency load shedding controller connected to the control switch.

[0059] In a specific embodiment, a plurality of warning lights are further provided on the main machine. The warning lights are LED lights and are matched with different colors to facilitate the identification of alarm signals and have stronger practicability.

[0060] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wind turbine generator control system, characterized in that: include: Main engine, controller group, data acquisition module array, rotating platform, generator cabin and start-stop device; The rotating platform is rotationally matched with the generator compartment; The data acquisition module array is composed of a plurality of data acquisition module groups in parallel, and the data acquisition module groups include a plurality of wind speed and direction sensors and sand flux detection sensors; The data acquisition module groups are respectively installed on the rotating platform and the generator cabin, and the data acquisition module array is connected to the controller group signal; The controller group is connected to the host signal, a wind turbine generator set is installed in the generator cabin, and the host is connected to the wind turbine generator set signal through a start-stop device.

2. A wind turbine generator control system according to claim 1, characterized in that: The start-stop device includes: a primary frequency modulation controller of the generator set, a high-frequency cut-off controller and a control switch, and the control switch is connected to the signal of the wind turbine generator set; the primary frequency modulation controller of the generator set and the high-frequency cut-off controller are respectively connected to the signal of the wind turbine generator set, and the high-frequency cut-off controller is connected to the signal of the control switch.

3. A wind turbine generator control system according to claim 1, characterized in that: Also includes: A\D conversion module, one end of the A\D conversion module is connected to the controller group through a port, and the other end of the A\D conversion module is connected to a data acquisition module array for detecting wind signals and sand flux signals, and the data acquisition module array is connected to the controller group signal through the A\D conversion module.

4. A wind turbine generator control system according to claim 1, characterized in that: The wind speed and direction sensor is used to detect wind speed and direction signals, and the sand flux detection sensor is used to detect sand flux signals.

5. A wind turbine generator control system according to claim 1, characterized in that: The data acquisition module array includes: a first data acquisition module group, a second data acquisition module group and a third data acquisition module group. The data acquisition module array is composed of the first data acquisition module group, the second data acquisition module group and the third data acquisition module group in parallel. The first data acquisition module group, the second data acquisition module group and the third data acquisition module group are all connected to the controller group signal.

6. A wind turbine generator control system according to claim 1, characterized in that: The controller group includes a first controller, a second controller and a third controller, the controller is an MCU microprocessor, and the first controller, the second controller and the third controller are respectively connected to the host signal.

7. A wind turbine generator control system according to claim 1, characterized in that: The rotating platform includes a rotating device and at least one cotyledon structure.

8. A wind turbine generator control system according to claim 7, characterized in that: The rotating device is adapted to be installed with a first controller and a first data acquisition module group for detecting the rotating device, the first controller is electrically connected to the first data acquisition module group, and is used to receive and store data collected by the first data acquisition module group; The cotyledon structure is adapted to install a second controller and a second data acquisition module group for detecting the cotyledon structure. The second controller is electrically connected to the second data acquisition module group and is used to receive and store data collected by the second data acquisition module group.

9. A wind turbine generator control system according to claim 8, characterized in that: Also includes: The generator compartment is adapted to be installed with a third controller and a third data acquisition module group for detecting the generator compartment. The third controller is electrically connected to the third data acquisition module group and is used to receive and store data collected by the third data acquisition module group.

10. A wind turbine generator control system according to claim 6, characterized in that: Also includes: A first timing module and a second timing module, wherein the first timing module is connected to the first controller by signal, and the second timing module is connected to the second controller by signal, and the first controller and the second controller perform data timing through the first timing module and the second timing module respectively.

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