3Chien I L, Fruehauf P S. Consider IMC tuning to improve controller performance [J]. Chemical Eng. Progress, 1990 , 86(10): 33-41.
4Zhuang M. Atherton D P. Automatic tuning of optimum PID controllers[A]. Proceedings of IEE[C], PTD, 1993,140(3): 216-224.
5Ho W K, Hang C C, Cao L S. Taning of PID controllers based on gain and phase margin specifications[J]. Automatic, a, 1995, 31(3): 497-502.
6Ho W K, Hang C C, Zhou J H. Performance and gain and phase margins of well-known PI tuning formulas[J]. IEEE Transactions on Control Systems Technology, 1995, 3(2): 245-248.