Yaw control device, wind power generation system and remote yaw control system

Abstract

The utility model provides a yaw control device, a wind power generation system and a remote yaw control system, and belongs to the field of wind generating sets. The yaw control device comprises a yaw PLC control cabinet, the yaw PLC control cabinet comprises an interface module, and the interface module comprises a first input interface unit and an output interface unit; the first input interface unit is connected with a yaw parameter signal output interface of a main PLC (Programmable Logic Controller) control cabinet of the wind generating set and is used for receiving a yaw parameter signal from the main PLC control cabinet; the output interface unit is connected with a yaw control piece of the wind generating set and used for sending a driving signal to the yaw control piece so that the yaw control piece can execute yaw work. By arranging the independent yaw PLC control cabinet, when the safety chain of the wind generating set is disconnected, yaw operation can still be conducted on the wind generating set, and the safety of the wind generating set is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wind generating set, concretely relates to a yaw control device, a wind power generation system and a remote yaw control system. BACKGROUND

[0002] With the continuous development of wind power, the safe and stable operation of wind turbine generators has attracted widespread attention. The reliability of wind turbine generator failure shutdown is the key to the safety of wind turbine generators. If the wind turbine generator fails and cannot be shut down during the strong wind period, it will cause great danger to the entire wind turbine generator.

[0003] The existing wind generating set cannot control the yaw control part of the wind generating set to perform yaw work when the safety chain is disconnected, so the wind generating set cannot yaw, which causes the wind generating set to collapse. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical defects, the utility model provides a yaw control device, a wind power generation system and a remote yaw control system, the yaw control device is provided with an independent yaw PLC control cabinet, which can independently control the yaw control part of the wind generating set to perform yaw work, and can still operate the yaw of the wind generating set when the safety chain of the wind generating set is disconnected, ensuring the safety of the wind generating set.

[0005] The utility model provides a yaw control device in the first aspect, be applied to wind generating set, the wind generating set includes: main PLC control cabinet and yaw control part, the yaw control device includes: yaw PLC control cabinet, the yaw PLC control cabinet includes: interface module, the interface module includes: first input interface unit and output interface unit;

[0006] The first input interface unit is connected with the yaw parameter signal output interface of the main PLC control cabinet of the wind generating set, and is used for receiving the yaw parameter signal from the main PLC control cabinet;

[0007] The output interface unit is connected with the yaw control part of the wind generating set, and is used for outputting the driving signal to the yaw control part, so that the yaw control part performs yaw operation.

[0008] In the utility model embodiment, the first input interface unit includes: first input interface, second input interface, third input interface and fourth input interface;

[0009] The yaw parameter signal output interface of the main PLC control cabinet comprises a safety chain state signal output interface, a blade position signal output interface, a wind speed signal output interface and a impeller rotating speed signal output interface;

[0010] The first input interface is connected with the safety chain state signal output interface, the second input interface is connected with the blade position signal output interface, the third input interface is connected with the wind speed signal output interface, and the fourth input interface is connected with the impeller rotating speed signal output interface.

[0011] In the embodiment of the utility model, the output interface unit comprises: first output interface, second output interface, third output interface, fourth output interface, fifth output interface and sixth output interface;

[0012] The yaw control part of the wind generating set comprises: a yaw electronic brake control part, a yaw hydraulic brake half pressure relief control part, a soft starter, a left yaw control part and a right yaw control part;

[0013] The first output interface is connected with the yaw electronic brake control part, and is used for sending a yaw electronic brake signal to the yaw electronic brake control part;

[0014] The second output interface is connected with the yaw hydraulic brake half pressure relief control part, and is used for sending a yaw hydraulic brake half pressure relief signal to the yaw hydraulic brake half pressure relief control part;

[0015] The third output interface is connected with the enable signal end of the soft starter, and is used for sending an enable signal to the soft starter;

[0016] The fourth output interface is connected with the start signal end of the soft starter, and is used for sending a start signal to the soft starter;

[0017] The fifth output interface is connected with the left yaw control part, and is used for sending a left yaw driving parameter signal to the left yaw control part;

[0018] The sixth output interface is connected with the right yaw control part, and is used for sending a right yaw driving parameter signal to the right yaw control part.

[0019] In the embodiment of the utility model, the driving signal output by the output interface unit is a digital signal.

[0020] In the embodiment of the utility model, the first input interface unit is connected with the yaw parameter signal output interface of the main PLC control cabinet through an RS485 communication bus.

[0021] The utility model discloses a second aspect provides a kind of wind power generation system, comprising: wind turbine unit and yaw control device as described above.

[0022] The utility model discloses a third aspect provides a kind of remote yaw control system, applied to wind turbine unit, the remote yaw control system includes: remote server, annular network and multiple yaw control devices as described above;

[0023] The interface module of the yaw PLC control cabinet of the yaw control device further includes a second input interface unit;

[0024] The remote server and the yaw PLC control cabinet of multiple yaw control devices are connected in the annular network;

[0025] The remote server sends remote yaw control signal to each yaw PLC control cabinet through the annular network;

[0026] The second input interface unit of each yaw PLC control cabinet receives remote yaw control signal from the annular network.

[0027] In the utility model embodiment, the remote yaw control system further includes: wind power prediction terminal;

[0028] The wind power prediction terminal is connected with the remote server, for providing wind power prediction value to the remote server.

[0029] In the utility model embodiment, the wind turbine unit further includes: data acquisition and monitoring control subsystem;

[0030] The remote server is connected with the data acquisition and monitoring control subsystem, obtains yaw parameter signal sent from the data acquisition and monitoring control subsystem.

[0031] In the utility model embodiment, the remote yaw control system further includes: display terminal;

[0032] The display terminal is connected with the remote server, for displaying yaw parameter signal and wind power prediction value obtained by the remote server.

[0033] The yaw control device provided by the utility model can control the yaw control piece of wind turbine unit to perform yaw work independently, can still perform yaw operation to wind turbine unit when the safety chain of wind turbine unit is disconnected, and ensure the safety of wind turbine unit.

[0034] Other features and advantages of the technical solution of the utility model will be described in detail in the specific implementation manner part below. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0036] Figure 1 is a structural schematic view of a yaw control device provided by an embodiment of the present application;

[0037] Figure 2 is a structural schematic view of a wind power generation system provided by an embodiment of the present application;

[0038] Figure 3 is a structural schematic view of a remote yaw control system provided by an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to make the technical solutions and advantages of the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0042] In the utility model, unless another definite provision and limitation, "installation", "link", "connection", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or can intercommunication;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation. For ordinary skilled person in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

[0043] In the process of realizing the utility model, the inventor finds that with the continuous development of wind power, the safe and stable operation of wind turbine has been widely concerned. The reliability of wind turbine fault shutdown is the key to the safety of wind turbine. If the wind turbine fails and cannot be shut down during the strong wind period, it will cause great danger to the entire wind turbine. When the safety chain of the existing wind turbine is disconnected, the main PLC control cabinet of the wind turbine cannot control the yaw control part of the wind turbine to perform yaw work, so the wind turbine cannot yaw, which causes the wind turbine to collapse.

[0044] To solve the above problems, the utility model embodiment provides a kind of yaw control device, it is applied to wind turbine, and the wind turbine includes: main PLC control cabinet and yaw control part, and the yaw control device includes: yaw PLC control cabinet, and the yaw PLC control cabinet includes: interface module, and the interface module includes: first input interface unit and output interface unit;The first input interface unit is connected with the yaw parameter signal output interface of the main PLC control cabinet of wind turbine, for receiving yaw parameter signal from the main PLC control cabinet;The output interface unit is connected with the yaw control part of wind turbine, for output drive signal to the yaw control part, to make the yaw control part execute yaw operation. The yaw control device can control the yaw control part of wind turbine to perform yaw work independently by setting independent yaw PLC control cabinet, can still yaw operation to wind turbine when wind turbine safety chain is disconnected, guarantee the safety of wind turbine.

[0045] Figure 1 It is the structure diagram of yaw control device provided by the utility model embodiment. As shown in Figure 1 The utility model embodiment provides a kind of yaw control device, it is applied to wind turbine, and the wind turbine includes: main PLC control cabinet and yaw control part, and the yaw control device includes: yaw PLC control cabinet, and the yaw PLC control cabinet includes: interface module, and the interface module includes: first input interface unit and output interface unit;

[0046] The first input interface unit is connected with a yaw parameter signal output interface of a main PLC control cabinet of the wind turbine generator set, and is configured to receive a yaw parameter signal from the main PLC control cabinet;

[0047] The output interface unit is connected with a yaw control component of the wind turbine generator set, and is configured to output a driving signal to the yaw control component, so that the yaw control component performs a yaw operation.

[0048] In the embodiment, the main PLC control cabinet is a PLC control cabinet in an original main control system of the wind turbine generator set.

[0049] In the embodiment, the first input interface unit comprises a first input interface, a second input interface, a third input interface and a fourth input interface; the yaw parameter signal output interface of the main PLC control cabinet comprises a safety chain state signal output interface, a blade position signal output interface, a wind speed signal output interface and a rotor speed signal output interface; the first input interface is connected with the safety chain state signal output interface, the second input interface is connected with the blade position signal output interface, the third input interface is connected with the wind speed signal output interface, and the fourth input interface is connected with the rotor speed signal output interface.

[0050] In the embodiment, the output interface unit comprises a first output interface, a second output interface, a third output interface, a fourth output interface, a fifth output interface and a sixth output interface; the yaw control component of the wind turbine generator set comprises a yaw electronic brake control component, a yaw hydraulic brake half-leakage pressure control component, a soft starter, a left yaw control component and a right yaw control component; the first output interface is connected with the yaw electronic brake control component, and is configured to send a yaw electronic brake signal to the yaw electronic brake control component; the second output interface is connected with the yaw hydraulic brake half-leakage pressure control component, and is configured to send a yaw hydraulic brake half-leakage pressure signal to the yaw hydraulic brake half-leakage pressure control component; the third output interface is connected with an enable signal end of the soft starter, and is configured to send an enable signal to the soft starter; the fourth output interface is connected with a start signal end of the soft starter, and is configured to send a start signal to the soft starter; the fifth output interface is connected with the left yaw control component, and is configured to send a left yaw driving parameter signal to the left yaw control component; and the sixth output interface is connected with the right yaw control component, and is configured to send a right yaw driving parameter signal to the right yaw control component.

[0051] In the embodiment, the driving signal comprises a yaw electronic brake signal, a yaw hydraulic brake half-leakage pressure signal, an enable signal of a soft starter, a start signal of the soft starter, a left yaw driving parameter signal and a right yaw driving parameter signal.

[0052] In the embodiment, when the safety chain of the wind turbine is broken and the wind turbine needs to yaw left, the yaw PLC control cabinet sends a yaw electronic brake signal to the yaw electronic brake control component through the first output interface, the yaw electronic brake control component brakes according to the yaw electronic brake signal, sends a yaw hydraulic semi-release pressure signal to the yaw hydraulic brake semi-release pressure control component through the second output interface, the yaw hydraulic brake semi-release pressure control component releases pressure semi according to the yaw hydraulic semi-release pressure signal, the third output interface outputs an enable signal of the soft starter to the soft starter, the fourth output interface outputs a start signal of the soft starter to the soft starter, the soft starter starts yaw according to the received enable signal and the start signal, the fifth output interface outputs a left yaw drive parameter signal to the left yaw control component, and the left yaw control component yaws left according to the left yaw parameter information. In this way, when the yaw electronic brake control component brakes, the yaw hydraulic brake semi-release pressure control component releases pressure semi, the soft starter enables and starts, and the left yaw control component yaws left, the wind turbine completes left yaw.

[0053] In the embodiment, when the safety chain of the wind turbine is broken and the wind turbine needs to yaw right, the yaw PLC control cabinet sends a yaw electronic brake signal to the yaw electronic brake control component through the first output interface, the yaw electronic brake control component brakes according to the yaw electronic brake signal, sends a yaw hydraulic semi-release pressure signal to the yaw hydraulic brake semi-release pressure control component through the second output interface, the yaw hydraulic brake semi-release pressure control component releases pressure semi according to the yaw hydraulic semi-release pressure signal, the third output interface outputs an enable signal of the soft starter to the soft starter, the fourth output interface outputs a start signal of the soft starter to the soft starter, the soft starter starts yaw according to the received enable signal and the start signal, the sixth output interface outputs a right yaw drive parameter signal to the right yaw control component, and the right yaw control component yaws right according to the right yaw parameter information. In this way, when the yaw electronic brake control component brakes, the yaw hydraulic brake semi-release pressure control component releases pressure semi, the soft starter enables and starts, and the right yaw control component yaws right, the wind turbine completes right yaw.

[0054] In the embodiment, the yaw PLC control cabinet generates a drive signal for sending to the yaw control component according to the yaw parameter signal obtained by the first input interface unit.

[0055] In the embodiment, the drive signal output by the output interface unit is a digital signal. That is, in the embodiment, the yaw electronic brake signal, the yaw hydraulic brake semi-release pressure signal, the enable signal of the soft starter, the start signal of the soft starter, the left yaw drive parameter signal, and the right yaw drive parameter signal are all digital signals.

[0056] In the embodiment, the first input interface unit is connected with the yaw parameter signal output interface of the main PLC control cabinet through the RS485 communication bus.

[0057] Figure 2 is a structural schematic diagram of the wind power generator system provided by the embodiment of the utility model. Figure 2 As shown in the figure, the wind power generator system provided by the embodiment comprises a wind power generator set and the yaw control device as described above, and the wind power generator set comprises a main PLC control cabinet and a yaw control component.

[0058] The yaw parameter signal output interface of the main PLC control cabinet is connected with the first input interface unit of the yaw PLC control cabinet of the yaw control device, and the output interface unit of the yaw PLC control cabinet is connected with the yaw control component.

[0059] Figure 3 is a structural schematic diagram of the remote yaw control system provided by the embodiment of the utility model. Figure 3 As shown in the figure, the third aspect of the utility model provides a remote yaw control system applied to a wind power generator set, and the remote yaw control system comprises a remote server, a ring network and a plurality of yaw control devices as described above.

[0060] The interface module of the yaw PLC control cabinet of the yaw control device further comprises a second input interface unit.

[0061] The remote server and the yaw PLC control cabinets of the plurality of yaw control devices are connected in the ring network.

[0062] The remote server sends remote yaw control signals to each yaw PLC control cabinet through the ring network.

[0063] The second input interface unit of each yaw PLC control cabinet receives the remote yaw control signals from the ring network.

[0064] In the embodiment, the remote yaw control system further comprises a wind power prediction terminal.

[0065] The wind power prediction terminal is connected with the remote server and is used to provide a wind power prediction value to the remote server.

[0066] In the embodiment, the wind power generator set further comprises a data acquisition and monitoring control subsystem.

[0067] The remote server is connected with the data acquisition and monitoring control subsystem and acquires the yaw parameter signals sent by the data acquisition and monitoring control subsystem.

[0068] In the embodiment, the remote yaw control system further comprises a display terminal.

[0069] The display terminal is connected with the remote server, and is configured to display the yaw parameter signal and the wind power prediction value obtained by the remote server.

[0070] In the embodiment, the remote server generates the remote yaw control signal according to the yaw parameter signal sent by the data acquisition and monitoring control subsystem and the wind power prediction value sent by the wind power prediction terminal.

[0071] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to cover all such changes and modifications that fall within the scope of the present application.

[0072] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

[0073] The optional embodiments of the present application are described in detail above in combination with the drawings, but the embodiments of the present application are not limited to the specific details in the above-described embodiments. Within the technical concept range of the embodiments of the present application, the technical solutions of the embodiments of the present application can be subjected to various simple modifications, and these simple modifications all belong to the protection range of the embodiments of the present application. In addition, it should be noted that, in the above-described specific embodiments, various specific technical features can be combined in any appropriate manner without contradiction, as long as the combination does not deviate from the idea of the embodiments of the present application, and it should be considered as the disclosed content of the embodiments of the present application.

Claims

1. A yaw control device for a wind turbine generator system, the wind turbine generator system comprising: The yaw control device comprises a yaw PLC control cabinet, and the yaw PLC control cabinet comprises an interface module, the interface module comprises a first input interface unit and an output interface unit; the first input interface unit is connected with a yaw parameter signal output interface of a main PLC control cabinet of the wind turbine generator set, and is used for receiving a yaw parameter signal from the main PLC control cabinet; the output interface unit is connected with a yaw control component of the wind turbine generator set, and is used for outputting a driving signal to the yaw control component, so that the yaw control component performs a yaw operation.

2. The yaw control device according to claim 1, characterized in that the first input interface unit comprises a first input interface, a second input interface, a third input interface and a fourth input interface; the yaw parameter signal output interface of the main PLC control cabinet comprises a safety chain state signal output interface, a blade position signal output interface, a wind speed signal output interface and a impeller rotating speed signal output interface; the first input interface is connected with the safety chain state signal output interface, the second input interface is connected with the blade position signal output interface, the third input interface is connected with the wind speed signal output interface, and the fourth input interface is connected with the impeller rotating speed signal output interface.

3. The yaw control device according to claim 2, characterized in that the output interface unit comprises a first output interface, a second output interface, a third output interface, a fourth output interface, a fifth output interface and a sixth output interface; the yaw control component of the wind turbine generator set comprises a yaw electronic brake control component, a yaw hydraulic brake half-leakage pressure control component, a soft starter, a left yaw control component and a right yaw control component; the first output interface is connected with the yaw electronic brake control component, and is used for sending a yaw electronic brake signal to the yaw electronic brake control component; the second output interface is connected with the yaw hydraulic brake half-leakage pressure control component, and is used for sending a yaw hydraulic brake half-leakage pressure signal to the yaw hydraulic brake half-leakage pressure control component; the third output interface is connected with an enable signal end of the soft starter, and is used for sending an enable signal to the soft starter; the fourth output interface is connected with a start signal end of the soft starter, and is used for sending a start signal to the soft starter; the fifth output interface is connected with the left yaw control component, and is used for sending a left yaw driving parameter signal to the left yaw control component; the sixth output interface is connected with the right yaw control component, and is used for sending a right yaw driving parameter signal to the right yaw control component.

4. The yaw control device according to claim 1, characterized by the driving signal output by the output interface unit is a digital signal.

5. The yaw control device of claim 1, wherein the first input interface unit is connected with the yaw parameter signal output interface of the main PLC control cabinet through an RS485 communication bus.

6. A wind power system characterized by The wind turbine generator set and the yaw control device according to any one of claims 1-5. The remote yaw control system comprises a remote server, a ring network and a plurality of yaw control devices according to claim 1; 7. A remote yaw control system for a wind turbine generator system, comprising: the interface module of the yaw PLC control cabinet of the yaw control device further comprises a second input interface unit; ​ The remote server and the yaw PLC control cabinets of the plurality of yaw control devices are connected to the ring network; The remote server sends remote yaw control signals to each yaw PLC control cabinet through the ring network; A second input interface unit of each yaw PLC control cabinet receives the remote yaw control signals from the ring network.

8. The remote yaw control system of claim 7, wherein, The remote yaw control system further comprises a wind power prediction terminal; The wind power prediction terminal is connected to the remote server and configured to provide wind power prediction values to the remote server.

9. The remote yaw control system of claim 8, wherein, The wind turbine further comprises a data acquisition and monitoring control subsystem; The remote server is connected to the data acquisition and monitoring control subsystem and configured to acquire yaw parameter signals sent by the data acquisition and monitoring control subsystem.

10. The remote yaw control system of claim 9, wherein, The remote yaw control system further comprises a display terminal; The display terminal is connected to the remote server and configured to display the yaw parameter signals and the wind power prediction values acquired by the remote server.

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