基于可编程系统芯片技术的电子式互感器数据采集

针对电子式互感器采集器设计中的一些问题，介绍了一种新型的采集器设计方法。采用可编程系统芯片技术在现场可编程门阵列（FPGA）内构造CPU处理器软核，通过单片FPGA实现了传统的CPU加FPGA才能实现的高速、高精度、高可靠性采集器功能，具有成本低、体积小、电路结构简单、人机交互好、电磁兼容特性高等特点。通过两层系数法，实现了采集器与传感头间的免调试更换，同时采集器可通过光串口实现程序在线配置，方便现场的维护和升级。整个系统通过验证证明，能解决现有采集器设计中的一些问题。

Data Acquisition of Electronic Transformer Based on System on Programmble Chip

This paper discussed the problem of electronic current transformer and proposed a new design method of acquisition by using system on programmable chip（SOPC）. It set up a CPU core in the FPGA,which can take place the CPU and FPGA in the traditional design. In this method it can design the acquisition with high speed, high precision, high credibility. It also has characteristics of low cost, small volume, simple eiueuit, good at human-computer interaction,good at EMC. The paper also invented a method of using two coefficients, in order to maintain the acquisition and the coil. The procedure can be upgraded using UART. The design can resolve the existing problems in acquisition design.