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Indexed by:会议论文

Date of Publication:2011-09-23

Included Journals:EI、CPCI-S、Scopus

Volume:130-134

Page Number:2851-+

Key Words:DFIG; LVRT; supercapacitor; reactive power

Abstract:This paper proposes a low voltage ride through(LVRT) scheme of doubly fed induction generator(DFIG) based on the supercapacitors energy storage. The novel control strategy of the bi-directional converter and the grid side converter is established. Simulation model of the DFIG system is developed. Simulation results show that the presented scheme can efficiently reduce the DC-link overvoltage, supply reactive power to the power system through grid side converter, and help grid recovery under system fault, improving the LVRT capability of the system.