文档介绍：....HENANINSTITUTEOFENGINEERING实习报告题目双闭环直流电动机调速系统设计学生姓名孙慧专业班级1121班学号201150712122系(部)电气信息工程系完成时间2012年5月20日....目录摘要.............................................................................................................................IIIAbstract...........................................................................................................................IV前言..............................................................................................................................V1绪论.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................22双闭环直流调速系统设计框图...................................................................................23系统电路的结构形式和双闭环调速系统的组成...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................104主电路各器件的选择和计算.....................................................