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自动控制原理第五章频域分析法 - 频率法二、中频段与系统动态品质的关系中频段是指系统开环对数幅频曲线20lg|G(jω)| 在截止频率 ω c 附近的区段。
自动控制原理第五章频域分析法 - 频率法工程实践中得出如下结论 :系统对数幅频特性曲线中频段斜率小于 [-60],则很难使闭环系统稳定 ; 若等于 [-40], 所占频率区间不宜过宽 , 则闭环系统可能稳定 , 即使稳定 , 其相稳定裕度也较小 , 系统的平稳性较差 ; 如果中频段斜率为 [-20], 且占据较宽的频段区间 , 一般说来 , 不仅可以保证系统稳定 ,而且可以使相稳定裕度 γ 增大 , 取得较好的平稳性。同时以提高截止频率来保证系统要求的快速性。
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自动控制原理第一章
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自动控制原理三、反
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自动控制原理第二章
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自动控制原理5. 正弦
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自动控制原理三、拉
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自动控制原理二、对
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自动控制原理三、理
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自动控制原理本章小
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自动控制原理第三章
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自动控制原理2. 速度
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自动控制原理则 Th( t) 1
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自动控制原理闭环传
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自动控制原理由于2 dn
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自动控制原理所以cosdt
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自动控制原理5. 振荡
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自动控制原理2. 测速
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自动控制原理各阶赫
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自动控制原理3. 劳思 (
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自动控制原理(2) 劳思
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自动控制原理由稳定
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自动控制原理求出 EN
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自动控制原理第四章
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自动控制原理证明 :
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自动控制原理会合角
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自动控制原理(7) 分离
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自动控制原理解之 ,
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自动控制原理例第四
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自动控制原理式中第
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自动控制原理二、主
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自动控制原理一阶系
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自动控制原理常规根
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自动控制原理开环极
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自动控制原理第五章
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自动控制原理11+ω T2 2
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自动控制原理动态数
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自动控制原理三、微
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自动控制原理五、一
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自动控制原理第六章
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自动控制原理第七章
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自动控制原理二、数
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自动控制原理7.2 信号
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自动控制原理系数第
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自动控制原理三、Z 变
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自动控制原理例试求
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自动控制原理7. 终值
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自动控制原理查表 7-1
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自动控制原理也可由
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自动控制原理一、稳
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自动控制原理次要带j
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自动控制原理由变换
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自动控制原理四、稳
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自动控制原理第八章
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自动控制原理2. 状态
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自动控制原理7. 状态
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自动控制原理1. 能控
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自动控制原理2. 能观
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自动控制原理二、传
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自动控制原理本章小
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