CN215672542U

CN215672542U - Wind turbine generator system reduction gear of yawing protector

Info

Publication number: CN215672542U
Application number: CN202121762858.3U
Authority: CN
Inventors: 陈海; 石敏; 呼木吉乐图; 康亚男; 袁文杰; 赵洁; 童正; 石志强; 冯勇; 张鹏
Original assignee: Inner Mongolia Jingneng Chayouzhong Wind Power Generation Co ltd
Current assignee: Inner Mongolia Jingneng Chayouzhong Wind Power Generation Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-28
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a wind turbine generator yaw speed reducer protection device, which comprises a micro PLC control module, a yaw control relay, a yaw motor and a power supply, wherein the yaw control relay and the yaw motor are electrically connected with the micro PLC control module, the yaw control relay and the yaw motor are electrically connected with the power supply, and the output end of the micro PLC control module is respectively and electrically connected with a first yaw contactor and a second yaw contactor, so that the wind turbine generator yaw speed reducer protection device has the following beneficial effects that: according to the utility model, the miniature PLC control module is added in the yaw control loop and is used for receiving yaw control relay and yaw motor brake feedback signals, so that the action condition of the yaw motor brake during yaw of the wind turbine generator is monitored, and corresponding control operation is carried out by matching with clockwise and anticlockwise yaw contactors, so that the normal operation of a yaw system of the wind turbine generator is ensured.

Description

Wind turbine generator system reduction gear of yawing protector

Technical Field

The utility model belongs to the field of wind power generation, and particularly relates to a wind turbine generator yaw speed reducer protection device.

Background

The lowest transmission shaft of the yaw reducer of the wind turbine generator is often easy to twist off in the operation process, such faults are high, the safe operation of equipment is affected, and through analysis, the damage reason of the yaw reducer of the wind turbine generator is determined, namely, the generator is in the yaw process, the brake of a yaw motor is not released, the brake of the yaw motor is locked all the time in the yaw process, under the driving of the other three motors, the inside of the generator is subjected to large and opposite torque, and the final force is concentrated on the transmission shaft of the lowest stage of the reducer, so that the transmission shaft is twisted off.

Most of the existing wind turbine generators lack feedback monitoring and protection devices for monitoring whether the yaw motor brakes act or not, so that the yaw speed reducer is damaged, and the actual application is not facilitated.

The utility model has the following contents:

the utility model aims to solve the problems and provide a wind turbine generator yaw speed reducer protection device, which solves the problems in the background art.

In order to solve the above problems, the present invention provides a technical solution:

the utility model provides a wind turbine generator system reduction gear protector that drifts, includes miniature PLC control module, driftage control relay, yaw motor and power, driftage control relay, yaw motor all with miniature PLC control module electric connection, miniature PLC control module, driftage control relay, yaw motor all with power electric connection, miniature PLC control module's output difference electric connection has first driftage contactor and second driftage contactor.

Preferably, the first yaw contactor is a clockwise yaw contactor and the second yaw contactor is a counter-clockwise yaw contactor.

Preferably, a set of normally closed contacts is arranged in the coil loop of each of the first yaw contactor and the second yaw contactor.

Preferably, the first yaw contactor and the second yaw contactor are electrically connected with a power supply.

Preferably, the micro PLC control module, the yaw control relay, the yaw motor, the power supply, the first yaw contactor and the second yaw contactor are all installed in a yaw control loop of the wind turbine generator.

The utility model has the following beneficial effects: according to the utility model, the miniature PLC control module is added in the yaw control loop and is used for receiving yaw control relay and yaw motor brake feedback signals, so that the action condition of the yaw motor brake during yaw of the wind turbine generator is monitored, and corresponding control operation is carried out by matching with clockwise and anticlockwise yaw contactors, so that the normal operation of a yaw system of the wind turbine generator is ensured.

Description of the drawings:

the accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the internal circuitry of the present invention.

In the figure: 1. a micro PLC control module; 2. a yaw control relay; 3. a yaw motor; 4. a power source; 5. a first yaw contactor; 6. a second yaw contactor.

The specific implementation mode is as follows:

the preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation. Example (b):

as shown in fig. 1-2, the utility model provides a wind turbine generator yaw reducer protection device, which comprises a micro PLC control module 1, a yaw control relay 2, a yaw motor 3 and a power supply 4, wherein the yaw control relay 2 and the yaw motor 3 are both electrically connected with the micro PLC control module 1, and the micro PLC control module 1 is used for better controlling the yaw control relay 2 and the yaw motor 3; the micro PLC control module 1, the yaw control relay 2 and the yaw motor 3 are electrically connected with the power supply 4, and the micro PLC control module 1, the yaw control relay 2 and the yaw motor 3 can be electrified conveniently through the power supply 4; the output of miniature PLC control module 1 electric connection has first driftage contactor 5 and second driftage contactor 6 respectively, and the first driftage contactor 5 and the second driftage contactor 6 that are convenient for better through miniature PLC control module 1 are controlled.

Furthermore, first driftage contactor 5 is clockwise driftage contactor, and second driftage contactor 6 is anticlockwise driftage contactor, and the miniature PLC control module 1 of better cooperation of being convenient for carries out control operation.

Furthermore, a group of normally closed contacts are arranged in coil loops of the first yawing contactor 5 and the second yawing contactor 6, so that the yawing contactors can be better matched to perform corresponding control operation.

Furthermore, the first yaw contactor 5 and the second yaw contactor 6 are both electrically connected with the power source 4, and the power source 4 is used for supplying power to the first yaw contactor 5 and the second yaw contactor 6.

Furthermore, the miniature PLC control module 1, the yaw control relay 2, the yaw motor 3, the power supply 4, the first yaw contactor 5 and the second yaw contactor 6 are all installed in a yaw control loop of the wind turbine generator, so that the yaw motor 3 can be conveniently and better matched with the yaw control loop of the wind turbine generator to monitor the braking action condition of the yaw motor during the yaw of the wind turbine generator.

Specifically, the method comprises the following steps: in actual use, a miniature PLC control module 1 is added in a yaw control loop and is used for receiving brake feedback signals from a yaw control relay 2 and a yaw motor 3, meanwhile, a group of normally closed contacts are respectively added in coil loops of the first yawing contactor 5 and the second yawing contactor 6, when the wind turbine generator is yawing, if the yaw control relay 2 is actuated, and the brake feedback signal of the yaw motor 3 is not received, the time is delayed by 0.5 second, the control power supply 4 of the yaw contactor is disconnected, the yaw is stopped, meanwhile, the wind turbine generator automatically alarms that the yaw feedback is wrong and stops, the delayed time can be adjusted according to actual measurement, the action condition of the yaw motor 3 for braking during the yaw of the wind turbine generator is monitored, meanwhile, corresponding control operation is carried out by matching with the clockwise and anticlockwise yaw contactors, so that the normal operation of the yaw system of the wind turbine generator is ensured.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a wind turbine generator system reduction gear protector that drifts, includes miniature PLC control module (1), driftage control relay (2), yaw motor (3) and power (4), its characterized in that, driftage control relay (2), yaw motor (3) all with miniature PLC control module (1) electric connection, miniature PLC control module (1), driftage control relay (2), yaw motor (3) all with power (4) electric connection, the output of miniature PLC control module (1) is electric connection respectively has first driftage contactor (5) and second driftage contactor (6).

2. The wind turbine generator yaw reducer protection device according to claim 1, wherein the first yaw contactor (5) is a clockwise yaw contactor, and the second yaw contactor (6) is a counterclockwise yaw contactor.

3. The wind turbine generator yaw reducer protection device according to claim 1, wherein a set of normally closed contacts are arranged in coil loops of the first yaw contactor (5) and the second yaw contactor (6).

4. The wind turbine generator yaw reducer protection device according to claim 1, wherein the first yaw contactor (5) and the second yaw contactor (6) are electrically connected with the power source (4).

5. The wind turbine generator yaw reducer protection device according to claim 1, wherein the micro PLC control module (1), the yaw control relay (2), the yaw motor (3), the power supply (4), the first yaw contactor (5) and the second yaw contactor (6) are all installed in a wind turbine generator yaw control loop.