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Comparative Study of Voltage Recovery Behaviors of Grid-Connected Wind Turbines

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  • Ecology

Abstract

The fast development of wind power generation brings new requirements for wind turbine integration to the network. After the clearance of an external short-circuit fault, the voltage at the wind turbine terminal should be re-established with minimized power losses. This paper concentrates on voltage recovery of variable speed wind turbines. The models of two different kinds of variable speed wind turbines, respectively with slip control and with doubly fed induction generator (DFIG), are developed in PSCAD/EMTDC. In both wind power generation systems, control strategies are proposed to re-establish the wind turbine terminal voltage after the clearance of an external short-circuit fault, which have been demonstrated by simulation results.

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