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Application of Switch Control With Dead Limits in Automatic Feeding of Electroslag Casting
Author(s): 
Pages: 1-4
Year: Issue:  1
Journal: JOURNAL OF NANCHANG UNIVERSITY(ENGINEERING & TECHNOLOGY)

Keyword:  电渣熔铸死区开关量自动进给自耗电极;
Abstract: 介绍了带死区的开关量控制在大型曲轴电渣溶铸中驱动电动机,以实现自耗电极的自动进给要求.为了适应自耗电极慢速进给的需要,采用直流力矩电动机;而驱动电动机工作可以用PWM功率放大器或带死区的开关量控制.研究了两种方法的优缺点,给出了带死区的开关控制的基本原理及软硬件设计.
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