基于FPGA/MCU全光纤电流互感器解调系统的设计

阐述了反射式全光纤电流互感器的工作原理,分析了互感器解调系统输出信号的特性,由此设计了全光纤电流互感器的解调系统方案,给出了一种FPGA+MCU的实现方法,研制了全光纤电流互感器的解调系统,并进行了测试验证。测试结果表明,解调系统能够对全光纤电流互感器交流及直流电流信号进行解析,说明解调系统满足全光纤电流互感器的功能要求。

Design and Implementation of All fiber Optical Current Transformer Demodulation System Based on FPGA/MCU

The working principles of the reflection of an All-fiber optical current transformer(FOCT)were described, the characteristics of transformer output signal demodulation system were analyzed, and on this basis, an all-fiber optical current transformer demodulation system were designed. Furthermore an FPGA+MCU implementing method was provided and a demodulation system for the all-fiber optical current transformer was developed. Test results showed that the demodulation system could parse the all-fiber optical current transformer AC and DC signal demodulation. Therefore, the verification system can meet the requirements for application in all-fiber optical current transformers.