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Wind power converter redundancy control method and wind power converter using same

A wind power converter, redundant control technology, applied in wind power generation, electrical components, output power conversion devices, etc., can solve the problems of wind power converter failure downtime, poor reliability, wind power converter downtime and other problems

Pending Publication Date: 2020-02-07
SHENZHEN HOPEWIND ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the control module fails, all power modules will stop working, which will cause the paralysis of the entire wind power converter
Therefore, the wind power converter of the prior art is likely to cause the failure shutdown of the whole wind power converter, and the reliability is very poor

Method used

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  • Wind power converter redundancy control method and wind power converter using same
  • Wind power converter redundancy control method and wind power converter using same
  • Wind power converter redundancy control method and wind power converter using same

Examples

Experimental program
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Effect test

Embodiment approach

[0046] As the second embodiment of the method for improving the reliability of the wind power converter redundancy control of the present invention, such as Figure 5 As shown, it specifically includes the following steps:

[0047] 201. The main control module sets the priorities of all control modules, and sets the control module with the highest priority as the main control module;

[0048] 202. The main control module sends a control signal to the control module set as the main control module;

[0049] 203. The control module set as the main control module sends the control signal to all power modules after receiving the control signal;

[0050] 204. The power module works according to the received control signal;

[0051] 205. The control module set as the main control module detects whether all the power modules are faulty, and if there is a fault, sends a control signal to the backup power module corresponding to the faulty power module, and the backup power module wor...

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PUM

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Abstract

A wind power converter comprises a main control module, a plurality of control modules and a plurality of power modules. Each control module is electrically connected with the main control module, andeach control module is electrically connected with the power modules. According to the wind power converter, when the main control module fails or the communication with the main control module fails, the control module having the highest priority and capable of working normally can be set as a main control module, the wind power converter is enabled to continue to work normally, the situation inwhich all the power modules stop working due to failure of the main control module or failure of communication with the main control module is avoided, breakdown of the whole wind power converter isavoided, and the reliability of the wind power converter is high. The invention further provides a wind power converter redundancy control method for improving reliability.

Description

technical field [0001] The invention relates to the technical field of wind power generation control, in particular to a redundant control method of a wind power converter and a wind power converter using the method. Background technique [0002] Because of its non-pollution and renewability, wind power has been paid more and more attention by countries all over the world, and wind energy has also become the fastest growing energy source. The wind power converter is a device that converts the output voltage amplitude and frequency of the wind turbine into AC power of constant voltage and frequency. It is an important component of the wind power generation system. [0003] A wind power converter in the prior art includes a main control module, a control module, and multiple power modules. The main control module controls the work of the control module, and the control module simultaneously controls the work of multiple power modules. When the control module breaks down, all ...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02M1/32
CPCH02M1/32H02M1/325Y02E10/76
Inventor 喻俊鹏胡斌周党生
Owner SHENZHEN HOPEWIND ELECTRIC CO LTD
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