在工程實際中，很多被控對象具有時變、非線性的特點，用常規的控制方法難以進行控制或者控制效果不好，為了對這類實際系統進行有效地控制，本文基于模糊控制器的基礎上，設計實現了一種雙模糊控制器，根據實際系統輸出信號的誤差大小利用兩個模糊控制器分別進行控制，以改善系統的快速性和消除誤差。從仿真結果來看，和常規PID控制及普通模糊控制相比，雙模糊控制器有效地減小了系統穩態誤差，響應時間、超調量、穩定時間等性能均優于傳統的PID控制和模糊控制。

Abstract:

?Many controlled plants hare time-variable and non-linear properties in actual， and it is hard to control by normal control methods. A new kind of double fuzzy controller was designed based on fuzzy controller. Two fuzzy controller were used separately according to actual error signal of the system output so that the system response speed was improved and the error was eliminated. Compared with normal PID controller and fuzzy controller， the results show that the double fuzzy controller can reduce steady-state error of the system， other characteristics such as speed of response， overshoot and settling time are also prior to normal PID controller and fuzzy controller.

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