Coordinated Voltage Control of a Wind Farm based on Model Predictive Control

Haoran Zhao, Qiuwei Wu, Qinglai Guo, Hongbin Sun, Shaojun Huang, Yusheng Xue

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This paper presents an autonomous wind farm voltage controller based on Model Predictive Control (MPC). The reactive power compensation and voltage regulation devices of the wind farm include Static Var Compensators (SVCs), Static Var Generators (SVGs), Wind Turbine Generators (WTGs) and On-Load Tap Changing (OLTC) Transformer, and they are coordinated to keep the voltages of all the buses within the feasible range. Moreover, the reactive power distribution is optimized throughout the wind farm in order to maximize the dynamic reactive power reserve. The sensitivity coefficients are calculated based on an analytical method to improve the computation efficiency and overcome the convergence problem. Two control modes are designed for both voltage violated and normal operation conditions. A wind farm with 20 wind turbines was used to conduct case studies to verify the proposed coordinated voltage control scheme under both normal and disturbance conditions.
Original languageEnglish
JournalIEEE Transactions on Sustainable Energy
Issue number4
Pages (from-to)1440-51
Publication statusPublished - 2016

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  • Dynamic reactive power reserve
  • Model predictive control
  • Sensitivity coefficient
  • Wind farm
  • Voltage control


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