Volume 34 Issue 03
Mar.  2008
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Zhou Yuanjun, Zhao Yunkun, Ge Yunhaiet al. Fault-tolerant control method and characteristic analysis of hydraulic redundant EMA system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(03): 285-289. (in Chinese)
Citation: Zhou Yuanjun, Zhao Yunkun, Ge Yunhaiet al. Fault-tolerant control method and characteristic analysis of hydraulic redundant EMA system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(03): 285-289. (in Chinese)

Fault-tolerant control method and characteristic analysis of hydraulic redundant EMA system

  • Received Date: 05 Dec 2007
  • Publish Date: 31 Mar 2008
  • A kind of hydraulic redundant electro-mechanical actuator (EMA) system used in the next generation more power aircraft was focused on, which is made up of two brushless DC motor with dual electrical channels. In such case, the fault-tolerant operation capability of‘fault -operation/fault-safe’ was advanced. The loss of inverter and motor and force fighting in the retarder were analyzed. A motor loss balance method by which EMA system would obtain the best synthetic performance under the situation with one channel fault was brought forward. Then the system output capability under the situation with two channels fault was analyzed. The tracking performances under different situations were simulated and analyzed. Finally a set of data of the motor temperature rise examination under fault-tolerant operation was presented.

     

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