摘要
选择适当的采样周期T_0和闭环系统时间常数T,避开时滞变化对闭环系统稳定性的影响,提出了Dahlin算法绝对稳定性概念。通过July稳定性判据在Dahlin算法数字控制系统中的应用,得到了该算法绝对稳定的两个必要条件和两个充分条件。
This study tries to avoid the influence of time-delay variation on the stability of the closed-loop system by choosing an apposite sampling time and closed-loop system time constant. There by a concept 'Dahlin Algorithm Absolute Stability' is presented. Two necessary conditions and two sufficient conditions are obtained by using July stability criterion in the Dah-lin Algorithm digital control system. These conditions are of theoretical and practical significance for the design of digital control systems with better robustness.
出处
《石油大学学报（自然科学版）》
CSCD
1990年第5期95-100,共6页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
DAHLIN算法
绝对稳定性
Dahlin algorithm
July stability criterion
Time-delay variation
Absolute stability
