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本文导出了选择比例因子的定量约束条件。以此约束条件为基础,论述了选择比例因子时存在的难以同时兼顾控制系统动态和稳态性能的问题。提出用变增益的方法实现模糊控制。数字仿真结果表明,该方法比通常的固定增益模糊控制具有动态特性好,稳态误差小,以及对被控对象参数变化适应性强等优点。
In this paper, we derive the quantitative constraints for choosing scale factors. Based on this constraint condition, the problems that exist when selecting the scale factor are difficult to take into account the dynamic and steady-state performance of the control system at the same time. Proposed variable gain method to achieve fuzzy control. The numerical simulation results show that the proposed method has the advantages of good dynamic characteristics, less steady-state error and more adaptability to the change of the controlled object than the usual fixed-gain fuzzy control.