对一种高精度模糊控制方案的研究与改进

为提高普通PD型模糊控制器控制精度,提出了一种仅用一张控制表在微偏差范围内递归自调整量化因子和比例因子的新方法。理论分析和仿真实验证明这种方法保留了原方案的高精度，同时也克服了原方案减弱PD型模糊控制器调节迅速和非线性控制特性的不足，进而又大大减少了计算量从而保证了控制的实时性。

Fast and real-time high precision fuzzy control scheme

To improve the control precision of the traditional fuzzy controllers, a high precision fuzzy control scheme was studied and modified. A novel scheme was developed with only one control searching table to recursively self adjust quantization factor and scale factor over a small error area to reduce steady state error. A simulation test shows that this new scheme not only retains the merits of the former scheme which had high precision but also overcomes its shortcoming which hindered the fast response and the nonlinear control of the PD fuzzy controller. In addition, it significantly reduces the calculational time and guarantees the real time control.