磁悬浮飞轮储能系统中电机干扰特性分析及监测方法研究

Research on disturbance analysis and detection method for the magnetically suspended flywheel-based PMSM system

本文基于飞轮三相永磁同步电机的特性,研究影响飞轮电机控制性能的干扰因素并对其特性进行分析。首先建立动基座条件下飞轮转子的动力学模型,在此基础上对影响电机性能的内外多源干扰进行建模和特性分析,给出详细的干扰模型以及所包含的结构类型。针对干扰所必需的输入参数,设计并实现了飞轮干扰状态的监测系统,获取飞轮实时转速、磁偏转角和基座振动等信息。最后,给出磁悬浮储能飞轮系统实验装置和飞轮参数,为飞轮电机干扰特性验证和干扰抑制方法提供必要基础。

This paper presents the modeling and characteristic analysis of the unknown disturbances for the flywheel energy storage system, considering the property of the three-phase permanent magnet synchronous motor. Firstly, the rotor dynamics mode under the circumstance of the dynamical base is established, and based on this, the model and property of the multi-source disturbances are given in detail. A status detection system is designed and accomplished to gain the essential input parameters for the disturbance. Then, the real-time speed, magnetically bias force and base vibration information can be obtained for the flywheel energy storage system. Finally, the experimental equipment of the magnetically suspended flywheel energy storage system is proposed with the flywheel parameters, which can be used appropriately to demonstrate the disturbance property and its depressing strategy.