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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Osinuga, M. Patra, S. Lanzon, A. |
| Copyright Year | 2010 |
| Description | Author affiliation: Control Systems Centre, University of Manchester, M60 1QD, UK (Osinuga, M.; Patra, S.; Lanzon, A.) |
| Abstract | Smoothness constraints are formulated for weights in ℋ∞ loop-shaping design in order to ensure smooth variations in their magnitude response. Smoothness in the magnitude response of weights prevents the cancelation of lightly damped poles/zeros of the plant when the shaped plant is formed by cascading the nominal plant with the weights. It also allows fitting by low-order transfer functions when the smooth variations are computed point-wise in frequency. Gradients of weights, expressed in dB/decade, are used to formulate the smoothness constraints in LMI form as additional constraints to those on the singular values and condition numbers of weights in [Lanzon, 2005, Weight optimization in ℋ∞ loop-shaping, Automatica, 41(1): 1018–1029]. The resulting solution algorithm maximizes the robust stability margin while simultaneously synthesizing smooth weights and a stabilizing controller subject to the shaped plant lying within a specified region that depicts the closed-loop design requirements. Keywords: ℋ∞ loop-shaping; Smoothness constraint; Weight optimization; Robust control. |
| Starting Page | 856 |
| Ending Page | 861 |
| File Size | 213566 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424480913 |
| e-ISBN | 9781424480920 |
| DOI | 10.1109/MED.2010.5547761 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-06-23 |
| Publisher Place | Morocco |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Algorithm design and analysis Robust stability Shape MIMO Optimization Poles and zeros |
| Content Type | Text |
| Resource Type | Article |
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