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[1]王欣,文小玲.无功和谐波电流监测系统的开发[J].武汉工程大学学报,2013,(06):73-79.[doi:103969/jissn 16742869201306014]
　WANG Xin,WEN Xiao ling.Development of reactive and harmonic current monitoring system[J].Journal of Wuhan Institute of Technology,2013,(06):73-79.[doi:103969/jissn 16742869201306014]
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无功和谐波电流监测系统的开发(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2013年06期
页码:
73-79
栏目:
机电与信息工程
出版日期:
2013-06-30

文章信息/Info

Title:
Development of reactive and harmonic current monitoring system
文章编号:
16742869(2013)06007307
作者:
王欣1; 文小玲2
1.武汉工程大学邮电与信息工程学院，湖北 武汉 430074；2.武汉工程大学电气信息学院，湖北 武汉430205
Author(s):
WANG Xin1; WEN Xiaoling2
1.School of Telecommunication & Information Engineering， Wuhan Institute of Technology，Wuhan 430074,China；2. School of Electrical and Information , Wuhan Institute of Technology，Wuhan 430205,China
关键词:
谐波电流; 下位机; 串口通信; 虚拟仪器
Keywords:
harmonic current;  slave computer;  serial communication;  Labview
分类号:
TM933.3
DOI:
103969/jissn 16742869201306014
文献标志码:
A
摘要:
为了实现对电网无功和谐波电流的实时监测，提出了一种基于虚拟仪器的新型监测系统.通过采样调理电路将电网中的同步电压、电流信号采集到主控制电路中；然后通过串行接口和上位机的连接，利用MODBUS协议完成上下位机的通信；在上位机中采用LabVIEW的编程环境中构建的测试软件对采集到的实时数据信号进行解析和存储，并将解析的结果按照一定的显示形式在虚拟仪器的面板上显示.系统测试软件可以通过对解析结果分析被测产品是否出现故障，并对故障信息进行记录；监测人员可以通过查阅存储的数据对出现的故障进行深入分析. 系统功能测试结果表明，其不仅能准确检测非线性负载电流中的有功、无功和谐波分量，而且在LabVIEW强大的自动多线程的编译环境下，只需要很低CPU的使用率和内存占用率就可以保证系统的实时数据采集、分析、存储、波形显示和数据查询管理等多个线程准确有序地并行运行.
Abstract:
A novel reactive harmonic and current supervision tool was developed based on the conventional current quality monitoring system. The tool is built under Labview environment, aimed at detecting harmonic and reactive current. The system from power grid sampled synchronized voltage and current signals to the main control circuit through Sampling control circuit. Then, an communication platform was established between the upper and the lower computer based on Modbus protocol. In the host computer, the collected data signals were resolved and stored by the test software which was established on the LabVIEW programming environment, and then the resolved signals were displayed on the panel of the virtual instrument in a certain form. The fault was detected, recorded and located by the results of analysis through the test software, the reason leading to the fault point was deeply analyzed in the way of operator watching the playback of the stored data. The experimental results show that the system detects harmonic and reactive current accurately, under the environment of the powerful capabilities of LabVIEW automatic multithreading, the test software can run on low CPU and memory usage, which ensures the date acquisition, analysis, store，display and data query operating orderly and accurately.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20130329作者简介：王欣（1985）， 女，湖北武汉人，助教,硕士.研究方向： 自动控制与电力电子应用技术.
更新日期/Last Update: 2013-07-11