一种实用模糊控制器的研制

Design and fabrication of a practical fuzzy logic controller

针对一个磁场中悬浮金属小球的控制问题，设计了有两输入一输出和九条规则的模糊控制器。控制器采用了一种新的模糊化和去模糊方法，它克服了通常的模糊化方法中由于把精确量分等级而带来的信息损失。模拟结果表明模糊控制与常规 Ｐ Ｉ Ｄ 方法相比，具有过渡时间短、超调量小和稳定性好的特点。用 Ｃ Ｍ Ｏ Ｓ电流型电路进行了设计，并用改进型 Ｃ Ｍ Ｏ Ｓ工艺流水，结果表明该电路较好地达到了设计要求。全部电路近 ３００ 个 Ｍ Ｏ Ｓ管，面积为 １１ ｍ ｍ ２， 功耗为１０７ ｍ Ｗ 。

A fuzzy logic controller is constructed to controller a metallic ball suspended in an electromagnetic field. The controller allows two premises, one conclusion, and nine rules. It explores a new method of fuzzification and defuzzification that subdues the information loss in the classification of accurate values. Modification of this method is also proposed. Simulation demonstrates that the fuzzy control method has superiority over the classic PID method, regarding the settling time, overshoot and stability. The controller is implemented by CMOS current mode circuits and fabricated with improved CMOS technology. The test results of the chip show that the specifications of the task are principally achieved with about 300 MOS transistors, a core area of 1.1mm 2 and a consumption of 10.7mW.