In order to solve the problem of maximum power tracking of doubly-fed induction motor and improve its maximum power tracking efficiency,a multi-input/multi-output(MIMO)second-order sliding mode control(SOSMC)method for maxi-mum power point tracking(MPPT)of doubly-fed induction generator(DFIG)was proposed.The model of doubly-fed induc-tion generator was analyzed,and the design process of multi-input/multi-output second-order sliding film control was intro-duced,and a single-input single-output second-order sliding film control with m variables was simplified.Furthermore,a single-input single-output second-order sliding film control method for doubly-fed induction generator was proposed.Simulation re-sults verify the effectiveness and robustness of SOSMC under three conditions of step wind speed,random wind speed and low voltage crossing.
关键词
双馈感应电机/最大功率追踪/滑动模态控制/强鲁棒性
Key words
DFIG/maximum power point tracking/sliding mode control/strong robustness
维普
万方数据