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Wind turbine generator set and method for preventing fan cabin from catching fire

A technology for wind turbines and nacelles, applied in electrical components, emergency protection circuit devices, etc., can solve problems such as contactor explosion, fan nacelle fire, etc.

Pending Publication Date: 2020-10-20
HEBEI SUNTIEN NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] How to Solve the Technical Problems of Fire in Fan Engine Room Caused by Contactor Explosion

Method used

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  • Wind turbine generator set and method for preventing fan cabin from catching fire
  • Wind turbine generator set and method for preventing fan cabin from catching fire
  • Wind turbine generator set and method for preventing fan cabin from catching fire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the present invention discloses a wind generator set for preventing fire in the fan nacelle, including a controller of the wind turbine set, a detection device installed on the stator contactor and used to detect the state of the stator contactor, and a contactor fault identification module, the detection device It is connected with the controller and communicates in one direction, and the first control end of the controller is connected with the control end of the tower base circuit breaker and communicates in one direction.

[0022] The detection device is a thermometer for measuring the temperature of the stator contactor, and the controller is a single-chip microcomputer.

[0023] The contactor fault identification module is used for the thermometer to detect the stator contactor and send the learned temperature data of the stator contactor to the controller. When the temperature data of the stator contactor received by the controller exce...

Embodiment 2

[0027] The difference between Embodiment 2 and Embodiment 1 is that the detection device is a current tester for measuring the working current of the stator contactor, and the second control terminal of the controller is connected to the control terminal of the low-voltage side circuit breaker of the control box transformer .

[0028] Such as figure 2 As shown, the present invention discloses a wind generator set for preventing fire in the fan nacelle, including a controller of the wind turbine set, a detection device installed on the stator contactor and used to detect the state of the stator contactor, and a contactor fault identification module, the detection device It is connected with the controller and communicates in one direction, and the second control terminal of the controller is connected with the control terminal of the circuit breaker on the low-voltage side of the control box transformer and communicates in one direction.

[0029] The detection device is a cur...

Embodiment 3

[0034] The invention discloses a method for preventing fire in the fan nacelle. Based on the wind turbine set in Embodiment 1, the stator contactor is detected by a thermometer and the temperature data of the stator contactor is sent to the controller. When the controller finds that the stator contactor When the temperature data of the contactor exceeds the set safe temperature, it is abnormal, and the controller controls the tower base circuit breaker to disconnect.

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Abstract

The invention discloses a wind turbine generator set and a method for preventing a fan cabin from catching a fire, and relates to the technical field of wind power generation equipment. The wind turbine generator set comprises a contactor fault identification module which is used for detecting the stator contactor by the detection device and sending the acquired state of the stator contactor to the controller, and when the controller finds that the state of the stator contactor is abnormal, the controller controls the tower footing circuit breaker to be disconnected or controls the box transformer substation low-voltage side circuit breaker to be disconnected. The method comprises: detecting the stator contactor through the detection device, sending the obtained state of the stator contactor to the controller, and when the controller finds that the state of the stator contactor is abnormal, the controller controlling the tower footing circuit breaker to be disconnected or controlling the box transformer substation low-voltage side circuit breaker to be disconnected. Through a contactor fault identification module and the like, a fan cabin is effectively prevented from catching fire.

Description

technical field [0001] The invention relates to the technical field of wind power generation equipment, in particular to a wind power unit and a method for preventing a fan nacelle from igniting. Background technique [0002] At present, the Sinovel 1.5MW units in service generally use the stator contactor as the grid-connected switch. When the unit is disconnected normally, the inverter and the control system will first control the unit to reduce the power to close to zero power. When the generator current is close to zero Only then will the stator contactor be controlled to be disconnected to realize unloading. However, in an emergency situation, the contactor may break a large current. However, the contactor itself does not have the ability to break large currents, and most wind field contactors run for a long time, and their performance decreases, which may cause arcing when the contactor is disconnected, and even cause serious failures such as contact adhesion. Once t...

Claims

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Application Information

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IPC IPC(8): H02H7/22
CPCH02H7/222
Inventor 梅春晓秦晓亮卫飞飞杨东博冯猛
Owner HEBEI SUNTIEN NEW ENERGY TECH
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