1) lower gain margin
下幅值裕度
1.
The traditional stability margins and performance specifications are no longer suitable for controlofunstableplantsBasedonthedamping analysis and tradeoffs concerning system stiffness versus the bandwidth, the appropriate ranges of the lower gain margin and phase margin for control of unstableplantsarepresented.
为此讨论了控制不稳定对象时的下幅值裕度和相位裕度的取值范围 ,给出了典型的灵敏度函数 ,并讨论了用 H∞ 设计时性能权函数的选择问题。
2) amplitude margin
幅值裕度
3) Gain margin
幅值裕度
1.
Given reasonable gain margin (GM), response of setting point and load disturbance for the first order plus dead-time process were considered integrated to search optimal phase margin (PM) and tune PI parameters under ISE (Integral Square Error) performance index.
以典型的一阶惯性加滞后系统为被控对象,综合考虑系统设定值响应和扰动响应,以ISE为性能指标,结合求解幅值裕度和相位裕度的简化公式,利用Nelder-Mead单纯形优化方法搜索给定幅值裕度下的最优相位裕度,整定PI控制器参数;通过与几种整定方法对比,验证了该整定方法使得制系统具有良好的控制效果和较强的鲁棒性;对中央空调系统中几种高阶系统模型进行简化,利用该整定方法进行仿真试验,进一步验证该方法的可行性。
2.
Based on a graphical stability criterion in parameter spacet,he stabilizing region of PI parameters was discussed for first-order processes with dead-timea,nd this kind of design method was extended to the case of achieving the given phase and gain margins.
针对带滞后因子的一阶惯性环节,基于一种时滞系统图解稳定性准则,讨论了PI控制器参数稳定域的确定,并将该思想推广应用于相角裕度和幅值裕度的设计。
4) magnitude margin
幅值裕度;幅值裕量
5) gain and phase-margin
幅值和相位裕度
1.
At first,the error voltage caused by dead time of inverter is regarded as disturbance,then the two-degree-of-freedom controller is designed using gain and phase-margin.
然后通过幅值和相位裕度来设计两自由度控制器。
6) phase and amplitude margins
相位和幅值裕度
补充资料:幅值裕度
分子式:
CAS号:
性质:相角交界频率ωL(即开环频率特性相角ψ(ωL)=-180°时的频率)上。开环频率特性幅值。
CAS号:
性质:相角交界频率ωL(即开环频率特性相角ψ(ωL)=-180°时的频率)上。开环频率特性幅值。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条