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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
In order to realize the two main performance indexes of high rigidity and high rotation speed of the spindle system of maglev grinder at the same time, the current response speed of the power amplifier and the response speed of the electromagnet to the performance of the magnetic bearing system are studied through theoretical analysis, computer simulation and experiment. Impact. The result shows that the current response speed of the power amplifier and the force response speed of the electromagnet directly affect the closed-loop control performance of the system. By increasing the current response speed of the power amplifier and the force response speed of the electromagnet, the stable operation of the magnetic bearing system under the condition of a rigidity of 39.3 N / μm and a rotation speed of 46.332 kr / min was achieved. The research results have reference value for the design of maglev system