电动汽车主要是由动力电池组和驱动电动机组成的电力驱动系统驱动。
Electric vehicles are driven by the electrical systems which include the power batteries and the drive motors.
对于较大机组，由于厂用电更多，单台驱动电动机也更大，厂用电系统各组成部件应用时的协调配合需更多的系统设计工作。
For larger units, as the total auxiliary power becomes larger and the individual drive motors become larger, the coordinated application of system components requires more system design effort.
结合陕西鼓风机（集团）有限公司生产制造的风机机组低压辅机系统的特点，阐明了电动机软启动装置的应用。
The paper also describes its application in combination with the features of a low voltage auxiliary system produced by the Shaanxi Blower(Group) Co.
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