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System and method for monitoring power filters and detecting power filter failure in wind turbine electrical generator

A technology of power filter and wind turbine, which is applied in the direction of electric power measurement through current/voltage, wind power generation, capacitor testing, etc., and can solve problems such as difficult to find installation and maintenance parts

Active Publication Date: 2011-03-30
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in existing systems, it is difficult to find components that are easy to install and maintain and can meet various adjustment needs

Method used

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  • System and method for monitoring power filters and detecting power filter failure in wind turbine electrical generator
  • System and method for monitoring power filters and detecting power filter failure in wind turbine electrical generator
  • System and method for monitoring power filters and detecting power filter failure in wind turbine electrical generator

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Embodiment Construction

[0037] Embodiments of the present invention provide a system and method for alerting an operator of a power generation system of power filter failure without installing additional hardware components. For example purposes, one embodiment of the present system and method will be described below with respect to a wind turbine generator generating three-phase electrical power. However, it should be understood that other types and sizes of generators, including single-phase and multi-phase, may be used without departing from the scope of the present embodiment as defined in the appended claims. As examples, embodiments of the present invention may use double / single-fed induction generators, synchronous generators, asynchronous generators, and other types of generators known to those skilled in the art, synchronous generators including permanent magnet (PM) generators Generators, internal permanent magnet (IPM) generators and surface mounted permanent magnet (SMPM) generators, asyn...

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Abstract

A method for determining a fault in a power filter of a wind turbine generator, the method including the steps of: calculating a reactive power consumed by the power filter; and comparing the calculated reactive power to a predefined threshold reactive power to determine the fault. A system for detecting a fault in a power filter of a wind turbine generator, and a computer readable medium containing computer program code for determining a fault in a power filter of a wind turbine generator are also disclosed.

Description

technical field [0001] Embodiments of the present invention provide a system and method for monitoring the performance of a power filter in a power generation system and detecting failure or failure of a power filter in the system. In a preferred embodiment, the power generation system is a high capacity wind turbine. Background technique [0002] Power generation systems typically convert an energy source into electrical energy by spinning a rotor of a generator. Electricity is supplied to the grid at a specific voltage and frequency, and the grid then delivers the power to consumers. In order to ensure that power is supplied at a constant voltage and frequency, various control devices / equipment can be employed. For wind turbine generators that do not turn the generator rotor at a constant speed, it is particularly challenging to ensure that power is delivered at the desired voltage and frequency. The electricity generated by the turbines must be converted into stable el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R21/06H02J3/01
CPCY02E40/40G01R19/06H02J3/386H02M1/12G01R31/343Y02E10/763G01R31/028H02J3/01G01R31/64H02J2300/28H02J3/381Y02E10/76H02J3/50H02J3/40
Inventor 殷波J·G·尼尔森K·B·拉森O·斯特赫姆K·H·洪
Owner VESTAS WIND SYST AS
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