Autonomous-synergic voltage control technology supporting large-scale wind power integration

作者：Guo Qinglai^*; Wang Bin; Sun Hongbin; Zhang Boming; Tang Lei; Liu Haitao

来源：Automation of Electric Power Systems, 2015, 39(1): 88-93 and 130.

DOI：10.7500/AEPS20140930004

• Autonomous
• Coordination
• Large-scale wind power
• Large-scale wind power integrations
• Operation experiences
• Security-constrained optimal power flow
• Wind power integrations
• Wind power variations

Large-scale wind power integrated into a weak grid is a typical feature for many wind pool areas in China, hence the voltage fluctuation and wind turbine generators (WTGs) cascading trip-off challenge to operation. An autonomous-synergic voltage control architecture is proposed. On the wind farms side, the autonomous controller coordinates static var compensators (SVCs), static var generators (SVGs), WTGs and capacitors to suppress voltage fluctuations. On the control center side, an agile flexible secondary voltage controller capable of adjusting its control period adaptively according to the wind power variation is proposed to retain a better voltage profile. Moreover, a security-constrained optimal power flow (SCOPF) based preventive control will be carried out should the cascading trip risk get too high. Some of the key technologies of this architecture have been implemented in several wind bases and wind farms in China, the effectiveness exhibited by real-life operation experience.

• 出版日期2015
• 单位清华大学