Mixed H2/H cruise controller design for high speed train

Ciann-Dong Yang, Yun Ping Sun

Research output: Contribution to journalArticle

123 Citations (Scopus)

Abstract

A cruise controller for two typical traction types of high speed train (HST), the push-pull driving (PPD) type and the distributed driving (DD) type, are designed using a mixed H2/H approach in this paper. The dynamics of a high speed train are modelled by a cascade of cars which are connected with flexible couplers and are subject to rolling mechanical resistance, aerodynamic drag and wind gust. A mixed H2/H controller is synthesized via linear matrix inequalities to satisfy a mixed design objective of speed command tracking (measured by H2 norm) and gust attenuation (measured by H norm). Performance of the proposed cruise controller is verified by non-linear simulation wherein two types of HST under three different control approaches, namely H2, H and H2/H, are compared in the aspects of gust attenuation, command tracking, control effort and oscillation of flexible connection. The simulation results show that the H2 controller has the best command tracking performance and the H controller has the best gust attenuation performance, while the mixed H2/H controller has excellent flexibility in trade-off between the other two conflicting objectives.

Original languageEnglish
Pages (from-to)905-920
Number of pages16
JournalInternational Journal of Control
Volume74
Issue number9
DOIs
Publication statusPublished - 2001 Jun 15

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Controllers
Aerodynamic drag
Linear matrix inequalities
Railroad cars

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Computer Science Applications

Cite this

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title = "Mixed H2/H∞ cruise controller design for high speed train",
abstract = "A cruise controller for two typical traction types of high speed train (HST), the push-pull driving (PPD) type and the distributed driving (DD) type, are designed using a mixed H2/H∞ approach in this paper. The dynamics of a high speed train are modelled by a cascade of cars which are connected with flexible couplers and are subject to rolling mechanical resistance, aerodynamic drag and wind gust. A mixed H2/H∞ controller is synthesized via linear matrix inequalities to satisfy a mixed design objective of speed command tracking (measured by H2 norm) and gust attenuation (measured by H∞ norm). Performance of the proposed cruise controller is verified by non-linear simulation wherein two types of HST under three different control approaches, namely H2, H∞ and H2/H∞, are compared in the aspects of gust attenuation, command tracking, control effort and oscillation of flexible connection. The simulation results show that the H2 controller has the best command tracking performance and the H∞ controller has the best gust attenuation performance, while the mixed H2/H∞ controller has excellent flexibility in trade-off between the other two conflicting objectives.",
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Mixed H2/H cruise controller design for high speed train. / Yang, Ciann-Dong; Sun, Yun Ping.

In: International Journal of Control, Vol. 74, No. 9, 15.06.2001, p. 905-920.

Research output: Contribution to journalArticle

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