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2014•Unpublished venueRequires access

Crowbar circuit in wind power grid low voltage ride through

Aoran Xu, Liu Zhang, Cailian Gu, Yizhang

Open publisher page 2 citations

Abstract

The principle of DFIG wind power generation system is analyzed and the mathematic model is developed. The function of the active Crowbar in LVRT is studied and the parameters of the active Crowbar are given. The simulation result shows that the DFIG system with active crowbar can protect converter against overvoltage and over current. Finally, main power circuit and driving circuit of the active Crowbar is designed. A VSG (Voltage Sag Generation) based on resistor is built. The corresponding experiment is done on the 90kWDFIG experimental platform. The LVRT scheme based on the active Crowbar is studied through experimentation. The experiment result shows that Crowbar is necessary for improving LVRT capability of DFIG wind power generation system and LVRT scheme based on the active Crowbar is effective.

About this research paper

What this paper is about

The principle of DFIG wind power generation system is analyzed and the mathematic model is developed. The function of the active Crowbar in LVRT is studied and the parameters of the active Crowbar are given. The simulation result shows that the DFIG system with active crowbar can protect converter against overvoltage and over current. Finally, main power circuit and driving circuit of the active Crowbar is designed. A VSG (Voltage Sag Generation) based on resistor is built. The corresponding experiment is done on the 90kWDFIG experimental platform. The LVRT scheme based on the active Crowbar is studied through experimentation. The experiment result shows that Crowbar is necessary for improving LVRT capability of DFIG wind power generation system and LVRT scheme based on the active Crowbar is effective.

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OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The principle of DFIG wind power generation system is analyzed and the mathematic model is developed. The function of the active Crowbar in LVRT is studied and the parameters of the active Crowbar are given. The simulation result shows that the DFIG system with active crowbar can protect converter against overvoltage and over current. Finally, main power circuit and driving circuit of the active Crowbar is designed. A VSG (Voltage Sag Generation) based on resistor is built. The corresponding experiment is done on the 90kWDFIG experimental platform. The LVRT scheme based on the active Crowbar is studied through experimentation. The experiment result shows that Crowbar is necessary for improving LVRT capability of DFIG wind power generation system and LVRT scheme based on the active Crowbar is effective.

Key concepts: Crowbar, Low voltage ride through, Overvoltage, Resistor, Wind power, Electrical engineering, Voltage, Computer science

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