Electric Power ›› 2017, Vol. 50 ›› Issue (9): 165-170.DOI: 10.11930/j.issn.1004-9649.201606039

• New Energy • Previous Articles     Next Articles

Optimal Control Strategy of Quick Response of Large Direct-Drive Wind Turbine

MENG Jie1, PAN Qiaobo1, 2, GAO Qingshui2, DENG Xiaowen2   

  1. 1. School of Automation Engineering, Northeast Electric Power University, Jilin 132012, China;
    2. Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, China
  • Received:2016-09-23 Online:2017-09-25 Published:2017-09-11
  • Supported by:
    This work is supported by the National Key Technology Support Program (No.2015BAA06B02) and the PHD Research Launch Funds Project of Northeast Electric Power University (No.BSJXM-11292)

Abstract: Because of large system inertia in high capacity wind power turbines, it is difficult to respond quickly to controls. Based on wind turbine characteristics and PMSM mathematical model, a non-linear affine model is established for wind power system. A system speed control strategy is proposed by using differential geometry principle and feedback linearization theory. A load torque forward compensation method is introduced to form a rapid response control strategy with easy physical implementation. Compared with traditional vector control stagey and voltage decoupled forward compensation strategy, the simulation results show the effectiveness of proposed method in large capacity wind turbine quick control response.

Key words: large scale direct drive wind turbine, feedback linearization, MPPT, large inertia load, torque feedforward

CLC Number: