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标题：增大飞轮电池储能的控制方法研究 |
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作者：郭永吉 |
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| 2013年第3期 访问次数：281次 |
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摘 要：飞轮电池充电时，常采用id=0的矢量控制策略对它的永磁同步电机进行控制。受逆变器最大输出电压和电机最大电流条件的约束，飞轮电池永磁同步电机的最高转速很快受到限制，这影响了飞轮电池的最大存储能量。针对这一问题，对永磁同步电机在基速以上进行弱磁控制，使电机的定子电流沿着电压极限圆与电流极限圆的交点轨迹运行，在弱磁的同时保证电机有较大的输出转矩。通过仿真对比表明，加入弱磁控制能够有效提高永磁同步电机的最高转速，拓宽飞轮的转速范围，增大飞轮电池充电时的存储能量。
关键词：飞轮电池；永磁同步电机；id=0控制；弱磁控制
Abstract: In the charging of flywheel battery, the id =0 vector control method is often be used. As for the maximum output voltage of the inverter and the motor maximum current, the maximum speed of permanent magnet synchronous motor is restricted. So the energy storage of the flywheel battery is affected. To solve this problem, the weakening control was did when motor′s speed was over the base speed. The stator current was controlled to run along intersection track of voltage limit circle and the current limit circle, and the motor torque can be larger in the weakening. The simulation comparison shows that the weakening control can effectively improve the maximum speed of permanent magnet synchronous motor. So the speed of flywheel can be broaden and its stored energy is increased.
Key words: flywheel battery; permanent magnet synchronous motor; id =0 control; weakening control
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