基于FPGA技术的高精度电子式互感器采集系统的设计
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摘要
数据采集系统是电子式互感器重要的组成部分之一,本文在充分分析电子式互感器的基本测量原理的基础上,提出了将FPGA即现场可编程门阵列技术应用到电子式互感器数据采集系统的硬件设计方案,给出了A/D控制程序流程图、并分析了测试结果。输出的数字信号遵循IEC 61850-9-2标准,能够同时用作测量和保护。经过实际测试,本系统功耗低,实现了实时采集数据,测量精度达到了0.2S级,并且具有较好的电磁兼容性。
Data acquisition system is an important part of the electronic transformers,after studying the principle of electronic transformers,this paper takes FPCA as the core microcomputer relay electronic transformers data acquisition device hardware design.The flowchart of A/D control programs was given and the results were analyzed.The output digital signal follow IEC61850-9-2 standard,and can be used for measurement and protection.Through the actual test,the data acquisition system designed for low power consumption,real-time data acquisition.Precision reaches 0.2S and the EMC characteristics are excellent
Data acquisition system is an important part of the electronic transformers,after studying the principle of electronic transformers,this paper takes FPCA as the core microcomputer relay electronic transformers data acquisition device hardware design.The flowchart of A/D control programs was given and the results were analyzed.The output digital signal follow IEC61850-9-2 standard,and can be used for measurement and protection.Through the actual test,the data acquisition system designed for low power consumption,real-time data acquisition.Precision reaches 0.2S and the EMC characteristics are excellent
引文
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[3]张曦,张庆伟.混合式OCT高压侧电路的供电方式.高电压技术[J].2002,28(12):14-15.
[4]段雄英等.电压电流组合型电子式互感器的研究[J].电工技术杂志,2006(5):9-12.
[5]刘田豹,方春恩,李伟等.混合式光电电流互感器数据采集系统的设计[J].智能电器及计算机应用,2009(1):25—28.
[6]李九虎,须雷,罗苏南等.电子式互感器在数字化电站的应用[J]江苏电机工程,2007,26-28.