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本文提出直流电动机滑模变结构控制调速系统中存在状态极测和采样控制滞后问题,并用向量函数 J_(ω)和相平面图分析这两种滞后引起的系统自激振荡。最后给出了一种使系统稳定的方法。
This paper presents the problem of state pole measurement and sampling control hysteresis in DC motor sliding mode variable structure control speed system, and analyzes the self-oscillation of these two hysteresis systems with vector function J_ (ω) and phase plan. Finally, a method of stabilizing the system is given.