Electric Power ›› 2017, Vol. 50 ›› Issue (2): 144-149.DOI: 10.11930/j.issn.1004-9649.2017.02.144.06

• New Energy • Previous Articles     Next Articles

Small Signal Stability Optimal Designing of Direct-Driven Permanent Magnet Wind Power System Based on Sensitivity Analysis Method

GUO Yongming1, YOU Xiaoke2, LIU Guanqi1   

  1. 1. School of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071003, China;
    2. Inner Mangolia Electric Power (Group) Co., Ltd, Baotou Power Supply Company, Baotou 014000, China
  • Received:2016-10-25 Online:2017-02-20 Published:2017-02-22

Abstract: Based on an analysis of the working principle of wind power generation system, a mathematical model of the direct-driven permanent magnet wind power system with dual PWM converter is established in this paper. And then, the mathematical model is linearized at DC operating point to establish the small signal mathematical model. The eigenvalue sensitivity analysis method is used to intuitively sort out the key factors that affect the small signal stability of the system. From the point view of design, A parameter optimization scheme of grid-connected wind power generation system is proposed. The result shows that the stability of the power system is improved.

Key words: wind power generation, direct-driven permanent magnet synchronous generator, small signal mathematical model, sensitivity analysis method, small signal stability

CLC Number: