带有调宽采样器的控制系统稳态分析
Steady-State Analysis for Control System with a Pulse-Width Sampler
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摘要: 本文讨论了脉冲调宽(带有调宽采样器的)控制系统.文章给出了这类控制系统稳态分析 的严格理论,得到了估计阶跃响应稳态精度的公式,提出了按照稳态精度选择采样周期的工程 方法.文章提出的理论在一个实际温度控制系统中得到了验证.Abstract: In this paper, pulse-width control systems--sampled-data control systems with a pulse-width sampler are considered. Strict theory on the steady-state analysis of this kind of system is given. A formula to estimate the steady-state accuracy of a step response is obtained while an engineering method to choose a sampling period is given according to the requirement for steady-state accuracy. The theory of steady-state analysis eatablished in this paper is verified by an experiment on an actual temperature control system with a trigger as a pulse-width sampler and switch-heating.
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