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TB521-ETH
TB521-ETH
交流电机和直流电机各有其优缺点,具体如下:
交流电机的优点:
结构简单、可靠性高:交流电机由于没有电刷,所以结构比较简单,故障率低,易于维修。
体积小、重量轻:由于交流电机的结构简单,所以体积小、重量轻。
调速范围宽:交流电机可以通过调节电源频率来实现调速,调速范围广。
价格相对低廉:由于生产成本低,交流电机的价格相对较低。
交流电机的缺点:
启动时需要较大的起动电流。
电机效率相对较低。
可靠性差,对电源的质量要求较高。
直流电机的优点:
启动电流小:直流电机启动时,电流相对较小。
调速性能好:直流电机可以通过改变电源电压或者改变转子电流来实现调速。
效率高:直流电机的效率相对较高。
反转性能好:直流电机可以通过改变电流方向来改变电机的旋转方向。
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