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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
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从正弦波驱动开始
无刷电机是同步电机，即轴的旋转与供电电流的频率同步。旋转周期完全等于交流周期的整数倍。
无法使用正弦波驱动来启动电机，因为启动时，停止的转子不跟随频率变化。
因此，在启动电机时，需要通过反馈转子位置进行加速操作。
- （1）检测转子位置。
- （2）根据转子位置，对线圈缓慢施加正弦电压。
- （3）在逐渐增加电压的同时旋转。
- （4）根据位置检测传感器的时间，控制正弦波的周期。
- （5）转子以一定的转速旋转时，开始稳定运行，以达到目标转速。
在稳定运行状态，通过反馈目标速度偏差，可以保持速度不受负载波动的影响。
*同步电机在无负载的情况下可能会启动。
