1. 开环转移函数:用来分析稳定度,找出Phase Margin(PM:相位裕度)跟Gain Margin(GM:增益裕度)2. 闭环转移函数:用来测量控制系统性能,如最大超越量、频宽等时与频域性能指标3. 系统不稳定的二个必要条件:开环转移函数的相位延迟180度开环转移函数的相位延迟180度时
•Forastableamplifier,theamountthattheloopgainmagnitudeisbelow0dbiscalledthegainmargin.Againmarginofzeroimpliesthatapoleliesonjwaxis.Ingeneral,alargergainmarginresultsinlessringingandfasterdecayoftransientresponse.•Anothermeasureofstabilityfromtheloopgainbodeplotisthephasemargin,whichisdeterminedatthefrequencyfpm...
Chapter 7_6 Phase Margin and Gain Margin
Stability margin analysisNonlinear system analysisDescribing functionsHarmonic BalanceGain MarginsPhase MarginsIn this paper, new definitions of Phase and Gain stability margins for a class of Nonlinear (NL) systems (a linear plant with a nonlinear control), specifically, in systems with control ...
Chapter 7_6 Phase Margin and Gain Margin
) AcronymDefinition GMPM Gross Motor Performance Measure GMPM geometric mean prey mass GMPM Geometric Monotone Process Model GMPM Gain Margin and Phase Margin (stability criterion) GMPM Gold Metallized Polymer Membrane Copyright 1988-2018 AcronymFinder.com, All rights reserved. Suggest new definition...
phaseand-180degreesisthephasemargin. )(1 )( )( fA fA fA f Stabilityofamplifier •Sincewewanttodesignfeedbackamplifierstoavoidtransientresponse ringingandfrequencyresponsepeaks,agenerallyacceptedruleofthumbis todesignforaminimumgainmarginof10dbandaminimumphasemargin of45degrees. •Typicalmagnitudeandphase...
幅值和相位裕度,gain... ... ) Gain margin 幅值裕度 )gain and phase margin幅相裕度) gain and phase-margin 幅值和相位裕度 ... www.dictall.com|基于2个网页 3. 增益和相位裕量 信号与系统精... ... Closed loop 闭环Gain and phase margin增益和相位裕量Nyquist stability criterion 奈魁斯特稳定性...
展开 关键词: control system analysis control system synthesis sampled data systems stability characteristic equations gain margin parameter-plane method phase margin sampled-data control systems stability equations DOI: 10.1080/00207179108934168 被引量: 58 年份...
The gain margin (GM) and phase margin (PM) condi- tions, the typical measures of robustness, are replaced by a condition on the closed-loop sensitivity inequality, 1 1 +kL(s) ≤ M for s = jω, ∀ω ≥ 0, k ∈ [1, K], (3) where the sensitivity bound M > 1 and the ...