【摘要】 飞轮储能设备的快速充放电特性使其非常适用于解决新能源并网所造成的能量波动问题。现阶段的飞轮储能设备多是小容量轻载型设备，以储能量100 kWh、10000 r/min的调频大容量重载飞轮储能设备为设计目标，对该设备的关键转子支撑部件电磁轴承进行设计。基于100 kWh的重载飞轮转子的承载力要求，分别设计了径向、轴向电磁轴承，仿真验证电磁力与磁感应强度等参数，并对承载力进行仿真分析与验证，同时研究了等效刚度下的重载飞轮转子的固有频率与临界转速，分析不同支撑刚度对重载飞轮转子固有频率的影响。结果表明所设计的重载电磁轴承能够满足100 kWh大容量重载飞轮储能设备的运行要求。更多还原

【Abstract】 The fast charging and discharging characteristics of the flywheel energy storage devices(FESDs) make them very suitable for solving the problem of energy fluctuation caused by grid connection of renewable energy.Currently, most of the FESDs are small-capacity and light-load devices. Aiming at designing a device of 100kWh, 10,000 r/min large-capacity heavy-duty FESD used for frequency modulation, the electromagnetic bearings which are the key rotor support part of the FESD are designed at first. Based on the requirement of load carrying capacity of 100 kWh heavy-duty flywheel rotor, both the radial and the axial electromagnetic bearings are designed respectively, the parameters of electromagnetic force and magnetic induction strength are simulated and verified, and the simulation analysis and verification are conducted on the load carrying capacity. Meanwhile, the intrinsic frequency and critical rotation speed of heavy-duty flywheel rotor under equivalent stiffness are investigated, and the influence of different support stiffness on the intrinsic frequency of heavy-duty flywheel rotor is analyzed. The Research results demonstrate that the designed heavy-duty electromagnetic bearings can satisfy the operation requirements of the 100 kWh large-capacity heavy-duty FESD.更多还原