【摘要】 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更多还原

【Abstract】 The paper uses variable structure control theory to analyze and design fuzzy speed controller for field-oriented induction motor drive system. Based on the above analysis, the method of adding a switching line feedforward term to the output of fuzzy controller to form a fuzzy-linear compound controller is put forward. Experiment results demonstrate that the compound controller obtains the robustness of fuzzy control but also reduces the torque ripple and steady state error as well as acquires fast transition of speed response. It is a highly advisable control alternative when both high-precision and fast response are demanded.更多还原