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Design of Magnetic Flux Feedback Controller in Hybrid Suspension System

Author

Listed:
  • Wenqing Zhang
  • Jie Li
  • Kun Zhang
  • Peng Cui

Abstract

Hybrid suspension system with permanent magnet and electromagnet consumes little power consumption and can realize larger suspension gap. But realizing stable suspension of hybrid magnet is a tricky problem in the suspension control sphere. Considering from this point, we take magnetic flux signal as a state variable and put this signal back to suspension control system. So we can get the hybrid suspension mathematical model based on magnetic flux signal feedback. By application of MIMO feedback linearization theory, we can further realize linearization of the hybrid suspension system. And then proportion, integral, differentiation, magnetic flux density B (PIDB) controller is designed. Some hybrid suspension experiments have been done on CMS04 magnetic suspension bogie of National University of Defense Technology (NUDT) in China. The experiments denote that the new hybrid suspension control algorithm based on magnetic flux signal feedback designed in this paper has more advantages than traditional position-current double cascade control algorithm. Obviously, the robustness and stability of hybrid suspension system have been enhanced.

Suggested Citation

  • Wenqing Zhang & Jie Li & Kun Zhang & Peng Cui, 2013. "Design of Magnetic Flux Feedback Controller in Hybrid Suspension System," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-7, October.
    • Handle: RePEc:hin:jnlmpe:712764
    DOI: 10.1155/2013/712764
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