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Energies 2015, 8(12), 13419-13441; doi:10.3390/en81212377

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

1
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
2
Department of Electrical Engineering & Computer Science, University of Tennessee, Knoxville, TN 37996, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Frede Blaabjerg
Received: 17 September 2015 / Revised: 3 November 2015 / Accepted: 16 November 2015 / Published: 26 November 2015
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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. View Full-Text
Keywords: permanent magnet synchronous generators (PMSGs); transient stability; extended equal area criterion (EEAC); multi-machine power system permanent magnet synchronous generators (PMSGs); transient stability; extended equal area criterion (EEAC); multi-machine power system
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Liu, Z.; Liu, C.; Li, G.; Liu, Y.; Liu, Y. Impact Study of PMSG-Based Wind Power Penetration on Power System Transient Stability Using EEAC Theory. Energies 2015, 8, 13419-13441.

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