摘要
针对模糊免疫PID控制算法中微分与积分增益不能根据系统特性自动调整的问题,提出了一种模糊免疫PSD(Proportional Summation Derivative)控制算法。该方法将自适应PSD算法与模糊免疫PID算法相结合,利用自适应PSD控制算法根据过程误差的几何特性建立的PSD控制规律,使得模糊免疫PID控制算法中的微分和积分增益可以随比例增益的变化而自适应调整,从而进一步提高控制算法的自适应性能。仿真实验表明,采用该算法可以提高非线性、时变系统的控制性能,并能减少参数调整的工作量。
To the problem that the integral and differential gain of fuzzy immune PID control algorithm cannot be tuned automatically according to the system characteristic, a fuzzy immune proportional summation derivative （PSD） control algorithm is proposed. Combining the adaptive PSD control and the fuzzy immune PID control, using the PSD control law which is established based on the geometrical character of the process error, the integral and differential gain of fuzzy immune PID control algorithm can be tuned along with the change of the proportional gain of the fuzzy immune PID control algorithm so as to enhance the adaptive performance of the control algorithm. Simulation results show that control performance of non-linear, time-varying system is improved, and the workload of parameter tuning is reduced.
出处
《控制工程》
CSCD
2008年第2期168-170,共3页
Control Engineering of China
基金
国家自然科学基金资助项目(50575129)
