Impact Study of PMSG-Based Wind Power Penetration on Power System Transient Stability Using EEAC Theory

Zhongyi Liu, Chongru Liu, Gengyin Li, Yong Liu and Yilu Liu
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Zhongyi Liu: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
Chongru Liu: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
Gengyin Li: State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
Yong Liu: Department of Electrical Engineering & Computer Science, University of Tennessee, Knoxville, TN 37996, USA
Yilu Liu: Department of Electrical Engineering & Computer Science, University of Tennessee, Knoxville, TN 37996, USA

Energies, 2015, vol. 8, issue 12, 1-23

Abstract: Wind turbines with direct-driven permanent magnet synchronous generators (PMSGs) are widely used in wind power generation. According to the dynamic characteristics of PMSGs, an impact analysis of PMSG-based wind power penetration on the transient stability of multi-machine power systems is carried out in this paper based on the theory of extended equal area criterion (EEAC). Considering the most severe PMSG integration situation, the changes in the system’s equivalent power-angle relationships after integrating PMSGs are studied in detail. The system’s equivalent mechanical input power and the fault period electrical output power curves are found to be mainly affected. The analysis demonstrates that the integration of PMSGs can cause either detrimental or beneficial effects on the system transient stability. It is determined by several factors, including the selection of the synchronous generators used to balance wind power, the reactive power control mode of PMSGs and the wind power penetration level. Two different simulation systems are also adopted to verify the analysis results.

Keywords: permanent magnet synchronous generators (PMSGs); transient stability; extended equal area criterion (EEAC); multi-machine power system (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: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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