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Loop Phase Margins

  • Qing-Guo Wang
  • Zhen Ye
  • Wen-Jian Cai
  • Chang-Chieh Hang
Chapter
Part of the Lecture Notes in Control and Information Sciences book series (LNCIS, volume 373)

Contents

The stabilizing ranges of decentralized PID parameters for MIMO systems are discussed in the previous chapter as well as the loop gain margins. This chapter will continue the stability margin discussion but focus on the loop phase margins of MIMO systems. Unlike the loop gain margins that corresponds to the stabilizing range of multi-loop P control, loop phase margins are related to multi-loop phase characteristics and not effected by P control. This gives additional difficulty in their determination. Nevertheless, two methods, respectively in time and frequency domain, are presented under the framework of LMI or constrained optimization.

Keywords

MIMO System Phase Margin Time Domain Method Multivariable System Transfer Function Matrix 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Qing-Guo Wang
    • 1
  • Zhen Ye
    • 1
  • Wen-Jian Cai
    • 2
  • Chang-Chieh Hang
    • 1
  1. 1.University of SingaporeSingapore
  2. 2.Nanyang Technological UniversitySingapore

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