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运用变结构控制理论分析和设计感应电机磁场定向变频调速系统的模糊速度控制器 ,并在此基础上提出了在模糊控制器的输出增加开关线的前馈项构成模糊线性复合控制的方法 .理论分析和实验结果均表明 ,这种复合控制方法 ,不仅保持了模糊控制器原有的鲁棒性 ,而且既减少了转矩抖振 ,提高了转速响应的稳态精度 ,又改善了转速响应的快速性 .在高精度 ,快速响应的场合 ,这种速度调节器的模糊线性复合控制方法具有较大的实用价值
The variable speed controller based on variable structure control theory is used to analyze and design the fuzzy controller of the field oriented variable frequency speed control system of induction motor. Based on this, a fuzzy linear compound control method is proposed to increase the output of the fuzzy controller. Theoretical analysis and experimental results show that this hybrid control method not only retains the original robustness of the fuzzy controller, but also reduces the torque chattering, improves the steady-state accuracy of the speed response, and improves the speed response Of the rapidity in the high-precision, fast response of the occasion, the speed regulator fuzzy linear composite control method has great practical value