该系统在生产全过程中实现计算机控制，主电机传动采用数字控制传动装置。

It is a computer control system for whole process. The drive of main-motor USES digit controlled drive.

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该系统主回路为高低高结构电流源型变频器，采用单片机为核心的数字控制器，其控制策略采用转子磁通定向直接矢量控制。

This system is a high low high CSI, of which controller is based on a single chip computer. The control strategy adopts vector control.

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理论及实例分析表明，通信系统的主—从时钟方式是电流差动保护装置在复用数字通信系统时正确工作的理想方式。

It is shown by theory and case study that the master - slave clock mode in a com munication system is ideal for proper functions of the current differential protection.

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