基于DSP的分布式容性设备绝缘在线监测系统设计  

The Design of Distributed Insulation On-line Monitoring System of Capacitive Equipment Based on DSP

作　　者：章伟聪[1] 戴征武[2,3] 张文祥[1] 

机构地区：[1]浙江万里学院智能控制研究所,浙江宁波315101 [2]浙江工业大学信息工程学院,杭州310014 [3]宁波理工监测科技股份有限公司,浙江宁波315800

出　　处：《电测与仪表》2009年第4期58-62,共5页Electrical Measurement & Instrumentation

摘　　要：针对集中式绝缘在线监测存在的问题,研制基于DSP的分布式在线监测系统。文章介绍了分布式监测原理及系统组成,采用"零磁通微电流传感器"采集信号,使相位测量误差有效地控制在±0.01度以内;开发了基于DSP+CPLD及高精度AD为核心的一体化数字监测单元,集信号调理、数据采集、CPU控制、算法处理、数据存储及CAN总线通信于一体,实现了监测参数的现场测量及数字化;设计了基于CAN现场总线三层分布式系统结构,有效解决了集中式在线监测系统模拟信号长距离传输带来的问题;阐述了软硬件的具体实现方法;经实践应用性能可靠稳定,达到预期目标。In order to solve the problems existing in centralized Insulation On-line Monitoring, we developped and manufactured a distributed on-line monitoring system . The principle and construction of on-line monitoring of a high voltage capacitive apparatus are discussed in this paper. It used ＂zero magnetic flow and microcurrent sensor ＂ to control phase error within the limits of ＋0.01 degree; and developped all-in-one numeral monitoring sub-unit based on DSP＋CPLD and high precision AD, which can make signals adjusting, data collecting,CPU controlling, arithmetic disposing ,data memorizing and CAN bus communications together.h also achieved on-the-spot measure and digitallization of monitoring parameters;Designed three layer distributed system structure based on CAN bus, effectivly solved the problem of long-distance simulant signals way of soft hardware. After practical application, transmitting. At last, it expounded idiographic realized it achieved the desired purpose of dependable performance.

关 键 词：在线监测 DSP 分布式 容性设备 

分 类 号：TM85[电气工程—高电压与绝缘技术] TP39[自动化与计算机技术—计算机应用技术]