华电技术 ›› 2013, Vol. 35 ›› Issue (1): 72-77.

• 新能源 • 上一篇    

双馈风力发电机功率关系分析

肖遥1,郭巍1,庄俊1,骆皓1,2   

  1. 1.国电南京自动化股份有限公司,江苏南京 210032; 2.东南大学电气工程学院,江苏南京 210096
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-01-25 发布日期:2013-01-25

Analysis on power relation of doublyfed wind power generator

XIAO Yao1, GUO Wei1, ZHUANG Jun1, LUO Hao1,2   

  1. 1.Guodian Nanjing Automation Company Limited, Nanjing 210032, China; 2.School of Electrial Engineering,Southeast University,Nanjing 210096, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-01-25 Published:2013-01-25

摘要: 双馈风力发电机通过控制转子电压实现定子有功功率和无功功率控制,分析了转子功率特性与变流器容量设计的关系,推导了双馈电机的等效电路,基于等效电路计算了发电机定、转子功率分配关系。使用Matlab软件对双馈发电机各工况下转子电流、电压的变化特性及发电机定、转子功率分配关系进行了仿真和验证。通过实例分析,提出了双馈变流器主电路硬件的设计方法。

关键词: 风力发电, 双馈电机, 有功功率, 无功功率, Matlab软件

Abstract: The active power and reactive power of stator of doublyfed wind power generator is controlled by the rotor voltage control. The relation between the rotor power characteristics and the converter capacity design was analyzed. The equivalent circuit of the doublyfed power generator was deduced. The power distribution relation of the stator and rotor of the generator was calculated by the equivalent circuit. Using the Matlab software, the rotor current and voltage variation characteristics of the doublyfed generator and the power distribution relation of the generator stator and rotor under different conditions were simulated and verified. According to practical example analysis, the design method of the main circuit hardware of the doublyfed converter was proposed.

Key words: wind power generation, doubly-fed power generator, active power, reactive power, Matlab software