【摘要】 针对电磁-永磁混合磁悬浮系统零功率控制中的电流积分问题,开展电流积分负作用的研究。结合起浮、稳态、下落三个过程,从理论上分析了电流积分负作用的起因及危害并提出了抑制负作用的控制策略;基于Simulink设计了系统的仿真模型,针对电流积分对于电源系统及悬浮性能的负作用进行了仿真。仿真结果表明,所提出的控制策略能有效提升系统的悬浮性能并降低对电源系统的要求。更多还原

【Abstract】 In allusion to the current integral action in zero-power control of hybrid suspension system with electro and permanent magnets, the negative effect was researched. The origin and harm of current integral effect was analyzed in theoretics, and the control strategy was put forwarded. Based on the Simulink soft, the negative effects that current integral action puts on the power supply system and suspension index were simulated. The results of simulation show that the control strategy can restrain the negative effects caused by the current integral action, improve the index of hybrid suspension system and reduce the demand to the power supply system.更多还原