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Unbalanced Voltage Compensation Strategy for Doubly Fed Induction Generator Based on Self-Synchronization Control without Phase-Locked Loop

  • Hao Tong
  • , Heng Nian
  • , Jing He
  • , Qiongfeng Zhu
  • , Yingzong Jiao
  • , Bo Pang
  • , Xiao Jin
  • Zhejiang University
  • State Grid Corporation of China

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper investigates the unbalanced voltage compensation strategy of the point of common coupling (PCC) for doubly fed induction generator (DFIG) based on self-synchronization control without phase-locked-loop (PLL). The direct power control (DPC) scheme is implemented in a synchronous reference frame with the fixed angular frequency to avoid potential instability issues caused by PLL under nonideal grid voltage. The unbalanced voltage compensation strategy is proposed based on resonant compensator of PCC voltage. In order to balance the operation performance of DFIG and the power quality of PCC voltage, this paper uses a hybrid virtual impedance (HVI) method to achieve flexible compensation and avoid overmodulation, which needs both the feedforward of the PCC voltage and the feedback of the output current to develop the voltage references. Finally, the results of simulation validate the availability of the proposed compensation strategy.

Original languageEnglish
Title of host publication2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages502-507
Number of pages6
ISBN (Electronic)9781728143033
DOIs
StatePublished - Jul 2020
Externally publishedYes
Event2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020 - Weihai, China
Duration: 13 Jul 202016 Jul 2020

Publication series

Name2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020

Conference

Conference2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020
Country/TerritoryChina
CityWeihai
Period13/07/2016/07/20

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • doubly fed induction generator (DFIG)
  • resonant compensator
  • self-synchronization
  • unbalanced voltage compensation
  • virtual impedance

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