基于PR调节器的双馈感应风力发电机控制研究

Research of control of double fed induction generator based on PR regulator

  • 摘要: 针对传统的双dq、PI调节器控制策略在不对称跌落下所带来的延时问题,提出了一种基于PR调节器的控制策略:采用功率闭环得到转子侧变换器所需的正序电流给定量,通过抑制电磁转矩二倍频来计算负序电流给定量。Matlab/Simulink仿真结果表明,基于PR调节器的控制策略很好地解决了延时问题,且与双dq、PI调节器控制策略相比,控制性能更优。

     

    Abstract: For delay problem brought by asymmetric drop of traditional control strategy based on double dq and PI regulator, a control strategy based on PR regulator was proposed, namely use closed-loop power to get positive sequence current quantitative required by rotor-side converter, and calculate negative sequence current quantitative by inhibiting the second harmonic of electromagnetic torque. Matlab/Simulink simulation results show that the control strategy based on PR regulator solves delay problem effectively, and has better control performance than control strategy based on double dq and PI regulator.

     

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