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首页> 外文期刊>IEEE Transactions on Industry Applications >Modeling, simulation, and analysis of permanent-magnet motor drives. II. The brushless DC motor drive
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Modeling, simulation, and analysis of permanent-magnet motor drives. II. The brushless DC motor drive

机译：永磁电动机驱动器的建模，仿真和分析。二。无刷直流电机驱动

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For pt.I see ibid., vol.25, no.2, p.265-73 (1989). The authors develop a phase variable model of the BDCM (brushless DC motor) and use it to examine the performance of a BDCM speed servo drive system when fed by hysteresis and pulsewidth-modulated (PWM) current controllers. Particular attention was paid to the motor large-signal and small-signal dynamics and motor torque pulsations. The simulation included the state-space model of the motor and speed controller and real-time model of the inverter switches. Every instance of a power device turning on or off was simulated to calculate the current oscillations and resulting torque pulsations. The results indicate that the small- and large-signal responses are very similar. This result is only true when the timing of the input phase currents with the back EMF (electromotive force) is correct. The large-signal and small-signal speed response is the same whether PWM or hysteresis current controllers are used. This is because, even though the torque pulsations may be different due to the use of different current controllers, the average value which determines the overall speed response is the same.
机译：关于第一部分，见同上，第25卷，第2期，第265-73页（1989年）。作者开发了BDCM（无刷直流电动机）的相变量模型，并用它来检查由磁滞和脉宽调制（PWM）电流控制器供电时BDCM速度伺服驱动系统的性能。特别注意了电动机的大信号和小信号动力学以及电动机转矩脉动。仿真包括电动机和速度控制器的状态空间模型以及逆变器开关的实时模型。模拟功率设备打开或关闭的每个实例，以计算电流振荡和产生的转矩脉动。结果表明，小信号响应和大信号响应非常相似。该结果仅在带有反电动势（电动势）的输入相电流的时序正确时才成立。无论使用PWM还是迟滞电流控制器，大信号和小信号的速度响应都是相同的。这是因为，即使由于使用不同的电流控制器而使转矩脉动不同，但是决定整体速度响应的平均值相同。

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