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2010•Unpublished venueRequires access

Low Voltage Ride through Characteristics Analysis of Direct-Driven Wind Power System

Mei Jun, Mei Xue-feng, Jianyong Zheng, Guo Xue-ying, Shen Zhang-liang

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Abstract

This paper introduced the control strategy of back-to-back full-scale PWM converter in direct-driven wind power system with PMSG (Permanent Magnetic Synchronous Generator). A simulation model has been built to demonstrate the maximum wind energy capture, DC voltage stability and decouping control of active and reactive power. In addition, the dynamic responses of system parameters during typical voltage sag and the role of dumping load at DC side have been tested. The simulation result shows that direct-driven wind power system has good capability of low voltage ride through.

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What this paper is about

This paper introduced the control strategy of back-to-back full-scale PWM converter in direct-driven wind power system with PMSG (Permanent Magnetic Synchronous Generator). A simulation model has been built to demonstrate the maximum wind energy capture, DC voltage stability and decouping control of active and reactive power. In addition, the dynamic responses of system parameters during typical voltage sag and the role of dumping load at DC side have been tested. The simulation result shows that direct-driven wind power system has good capability of low voltage ride through.

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Available abstract

This paper introduced the control strategy of back-to-back full-scale PWM converter in direct-driven wind power system with PMSG (Permanent Magnetic Synchronous Generator). A simulation model has been built to demonstrate the maximum wind energy capture, DC voltage stability and decouping control of active and reactive power. In addition, the dynamic responses of system parameters during typical voltage sag and the role of dumping load at DC side have been tested. The simulation result shows that direct-driven wind power system has good capability of low voltage ride through.

Key concepts: Wind power, AC power, Permanent magnet synchronous generator, Control theory (sociology), Voltage, Voltage sag, Electric power system, Low voltage ride through

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