基于CPLD的馈电开关保护器的设计  

Design of Feeder Switchgear Protector Based on CPLD

作　　者：刘博[1] 柳明洙[1] 陈世杰[1] 何东升[2] 

机构地区：[1]华南理工大学电力学院,广州510640 [2]国家中低压输配电设备质量监督检验中心,广东东莞523325

出　　处：《电气技术》2008年第11期51-53,共3页Electrical Engineering

摘　　要：本文介绍了一种基于CPLD的馈电开关保护器的设计方案。提出了通过检测相位的方法精确判断系统是否漏电、缺相以及负载不平衡等故障,系统利用CPLD内部丰富的资源和高速处理功能,驱动A/D转换器,实现稳定、可靠、高速的数据采集。实践表明,该方案大大提高系统的资源利用率,节约成本,缩短开发周期,具有电路设计简单、可靠性高和易移植等特点。This paper introduces a design scheme of the feeder switchgear protector based on CPLD, which can judge malfunction if the system has current leakage, open-phase and the load imbalance questions accurately by detecting phased. The data collection system can drive the A/D converter stable and reliable by CPLD, which is rich in internal resources and has high speed processing function. The practice shows that the method can save cost by improve the system resource and also can shorten period of development. The protector has simple circuit and easy to transform.

关 键 词：馈电开关 CPLD 相位检测 A/D转换 

分 类 号：TM774[电气工程—电力系统及自动化]