Mixed sensitivity H∞ controller design for variable-speed pump-controlled motor system

Xiaolin Li, Xiangzhou Wang, Yu Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

This paper focuses on constant speed control of variable speed pump controlled motor system. The nonlinear model of pump controlled motor system is derived and its parametric perturbations are taken into consideration. To decouple pump speed variation from H controller, a closed loop flow rate controller of hydraulic pump based on Bang-Bang control and low pass filter is proposed. Mixed sensitivity H controller with load torque observer is achieved to reduce maximum speed error and settling time of hydraulic motor. Simulation results show that the proposed control scheme is superior to PID controller.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2014
PublisherIEEE Computer Society
Pages503-508
Number of pages6
ISBN (Print)9781479939787
DOIs
Publication statusPublished - 2014
Event11th IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2014 - Tianjin, China
Duration: 3 Aug 20146 Aug 2014

Publication series

Name2014 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2014

Conference

Conference11th IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2014
Country/TerritoryChina
CityTianjin
Period3/08/146/08/14

Keywords

  • Bang-bang control
  • Mixed sensitivity
  • Pump controlled motor
  • Variable-speed

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