【摘要】 为了同时实现磁悬浮磨床电主轴系统高刚度和高转速这两个主要性能指标 ,通过理论分析、计算机仿真和实验 ,研究了功率放大器环节的电流响应速度、电磁铁的力响应速度对磁轴承系统性能的影响。结果表明 ,功放的电流响应速度、电磁铁的力响应速度直接影响系统的闭环控制性能。通过提高功放的电流响应速度、电磁铁的力响应速度 ,实现了磁轴承系统在刚度为 39.3N /μm ,转速为 46 .32 0 kr/min情况下的稳定运转。研究结果对于磁悬浮系统的设计具有参考价值更多还原

【Abstract】 High stiffness and high speed are both important proporties in active magnetic bearings (AMBs) grinding electrospindle system. Theoretical analysis, computer simulations and experiments were used to analyze the effect of the power amplifier current response rate and the electromagnetic force response rate on the performance of the magnetic bearing system. The results show that both response rates directly affect the performance of the closed loop system. A stable rotation speed of 46.320kr/min and a stiffness of 39.3N/μm were obtained with increased power amplifier current response and electromagnetic force response rates.更多还原