Low Voltage Ride-through Scheme of the PMSG Wind Power System Based on Coordinated Instantaneous Active Power Control

Cheng Zhong, Lai Wei and Gangui Yan
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Cheng Zhong: Ministry of Education Key Laboratory of Modern Power System Simulation Control and Green Power Technology, Northeast Dianli University, Jilin 132012, China
Lai Wei: Ministry of Education Key Laboratory of Modern Power System Simulation Control and Green Power Technology, Northeast Dianli University, Jilin 132012, China
Gangui Yan: Ministry of Education Key Laboratory of Modern Power System Simulation Control and Green Power Technology, Northeast Dianli University, Jilin 132012, China

Energies, 2017, vol. 10, issue 7, 1-20

Abstract: Fast control DC-link voltage is the key to enhance Low-Voltage Ride-Through (LVRT) for the Permanent Magnet Synchronous Generator (PMSG). When grid voltage dips deeply, by the constraint of the capacity of the grid-side converter and reactive power support by the grid-code required, the active power capacity of the grid-side converter will be reduced. Therefore, it cannot stabilize the DC-link voltage relying solely on the grid-side converter. This paper proposes an improved control strategy to combine generator-side and grid-side converter active power. Reactive power support and negative sequence feed-forward compensation are also considered in the paper. The effectiveness of the control strategy is verified by both simulation and the experimental results.

Keywords: permanent magnet synchronous generator (PMSG); low-voltage ride-through (LVRT); coordinate active power control; unbalanced voltage sag (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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