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要使拖拉机用的永磁发电机对照明灯泡有最大的功率输出,则必须满足电机的内阻抗与负荷电阻之间的阻抗匹配关系,而永磁电机之内阻抗实际上决定于绕组圈
To make the tractor permanent magnet generator have the maximum power output of the lighting bulb, you must meet the impedance matching between the internal resistance of the motor and the load resistance, and the impedance of the permanent magnet motor is actually determined by the winding circle