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Fault tolerant control with torque limitation based on fault mode for ten-phase permanent magnet synchronous motor 被引量:4
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作者 Guo Hong Xu Jinquan 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2015年第5期1464-1475,共12页
This paper proposes a novel fault tolerant control with torque limitation based on the fault mode for the ten-phase permanent magnet synchronous motor (PMSM) under various open-circuit and short-circuit fault condit... This paper proposes a novel fault tolerant control with torque limitation based on the fault mode for the ten-phase permanent magnet synchronous motor (PMSM) under various open-circuit and short-circuit fault conditions, which includes the optimal torque control and the torque limitation control based on the fault mode. The optimal torque control is adopted to guarantee the ripple-free electromagnetic torque operation for the ten-phase motor system under the post-fault condition. Furthermore, we systematically analyze the load capacity of the ten-phase motor system under different fault modes. And a torque limitation control approach based on the fault mode is proposed, which was not available earlier. This approach is able to ensure the safety operation of the faulted motor system in long operating time without causing the overheat fault. The simulation result confirms that the proposed fault tolerant control for the ten-phase motor system is able to guarantee the ripple-free electromagnetic torque and the safety operation in long operating time under the normal and fault conditions. 展开更多
关键词 fault mode fault tolerant Optimal torque control Permanent magnet motorTorque limitation
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Fault mode probability factor based fault-tolerant control for dissimilar redundant actuation system 被引量:1
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作者 Jun WANG Shaoping WANG +2 位作者 Xingjian WANG Mileta M.TOMOVIC Cun SHI 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2018年第5期965-975,共11页
This paper presents a Fault Mode Probability Factor(FMPF) based Fault-Tolerant Control(FTC) strategy for multiple faults of Dissimilar Redundant Actuation System(DRAS)composed of Hydraulic Actuator(HA) and Ele... This paper presents a Fault Mode Probability Factor(FMPF) based Fault-Tolerant Control(FTC) strategy for multiple faults of Dissimilar Redundant Actuation System(DRAS)composed of Hydraulic Actuator(HA) and Electro-Hydrostatic Actuator(EHA). The long-term service and severe working conditions can result in multiple gradual faults which can ultimately degrade the system performance, resulting in the system model drift into the fault state characterized with parameter uncertainty. The paper proposes to address this problem by using the historical statistics of the multiple gradual faults and the proposed FMPF to amend the system model with parameter uncertainty. To balance the system model precision and computation time, a Moving Window(MW) method is used to determine the applied historical statistics. The FMPF based FTC strategy is developed for the amended system model where the system estimation and Linear Quadratic Regulator(LQR) are updated at the end of system sampling period. The simulations of DRAS system subjected to multiple faults have been performed and the results indicate the effectiveness of the proposed approach. 展开更多
关键词 Dissimilar redundant actuation system fault mode probability factor fault-tolerant control Linear quadratic regulator Monte Carlo simulation Moving window
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