Coordinated Voltage Control of Renewable Energy Power Plants in Weak Sending-End Power Grid

Yongning Chi, Weihao Li, Qiuwei Wu, Chao Liu

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The renewable energy connected to the sending-end power grid is increasing rapidly. This paper proposes a coordinated voltage control strategy based on Model Predictive Control (MPC) for renewable power plants of wind and solar power connected to the weak sending-end power grid. Wind Turbine Generators (WTGs), Photovoltaic Arrays (PVAs) and Static Synchronous Compensator (STATCOM) are coordinated to keep voltages within the feasible range during operation, which makes full use of the reactive power capability of WTGs and PVAs. Besides, the impact of active power outputs of WTGs and PVAs on voltage control are taken into consideration because of the high R/X ratio of the collector system. To improve the computation efficiency, an analytical method is used for the calculation of sensitivity coefficients. A renewable energy power plant with 80 WTGs and 20 PVAs connected to a weak sending-end power grid was used to verify the proposed voltage control strategy.

Original languageEnglish
Title of host publicationProceedings of 2020 IEEE/IAS Industrial and Commercial Power System Asia
PublisherIEEE
Publication dateJul 2020
Pages1108-1113
Article number9208461
ISBN (Electronic)9781728143033
DOIs
Publication statusPublished - Jul 2020
Event2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020 - Weihai, China
Duration: 13 Jul 202016 Jul 2020

Conference

Conference2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020
Country/TerritoryChina
CityWeihai
Period13/07/202016/07/2020
Series2020 IEEE/IAS Industrial and Commercial Power System Asia, I and CPS Asia 2020

Keywords

  • Coordinated voltage control
  • Model predictive control
  • Renewable energy
  • Solar power
  • Weak sending-end
  • Wind power

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