Starting up and integration control of doubly-fed variable-speed constant-frequency wind power generator based on VSC-HVDC

  • Wenjin Li
  • , Guangfu Tang
  • , Yong Kang
  • , Yan Zhao
  • , Ming Kong

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

his paper analyzes the integration of doubly fed induction generator (DFIG)-based variable-speed constant-frequency wind turbine (VSCF) via a voltage source converter-based HVDC transmission system. A detailed algorithm for start-up control of DFIG-based VSCFs, based on stator flux orientation and closed-loop control of rotor current is proposed to depress the overcurrent of DFIG stator during the cut-in transience. Then the control principles of modular multilevel voltage source converter are discussed. For the smooth operation of wind farms composed of DFIG-based VSCFs, a passive network voltage tracing strategy is proposed to control the wind farm modular multilevel converter as an infinite voltage source, which dose not contain any information obtained from wind farm. Simulations of 49-level MMC in the PSCAD/EMTDC environment are presented to validate the effectiveness of proposed control schemes. Field tests results verify the effective performance of discussed system.

Original languageEnglish
Pages (from-to)1864-1873
Number of pages10
JournalZhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
Volume34
Issue number12
DOIs
StatePublished - 2014

Keywords

  • Doubly-fed variable-speed constant-frequency wind power generator
  • Modular multilevel voltage source converter
  • Voltage source converter HVDC (VSC-HVDC)
  • Wind farm integration

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