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Frequency measurement of the generator automatic quasi-synchronizing device based on singlechip and CPLD
Author(s): 
Pages: 122-125
Year: Issue:  12
Journal: ELECTRONIC MEASUREMENT TECHNOLOGY

Keyword:  单片机CPLD频率测量准同期装置;
Abstract: 对发电机和电力系统的频率进行精确测量是保证自动准同期装置正确动作的重要条件之一.本文提出了一种基于单片机和CPLD的同步发电机自动准同期装置中的频率测量方法,介绍了频率测量的基本原理,在该原理的基础上采用单片机和CPLD综合技术实现了频率测量,CPLD进行频率检测,单片机进行数据处理与智能控制,并给出了测频电路的硬件电路图和软件流程图.实验表明,单片机与CPLD结合进行测频,测量误差小于10-3,使测量精度得到了提高,而且测量装置的集成度也较高,具有一定的实用价值.
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