基于FPGA的多传感数据融合电子式互感器采集系统仿真.pdfVIP

学兔兔 总第48卷 第542期 电测与仪表 V0I．48 NO．542 2011年 第02期 Electrical Measurement Instrumentation Feb．201l 基于FPGA的多传感数据融合电子式互感器采集 系统仿真 岳芸，朱超，梅军，郑建勇 (东南大学电气工程学院，南京210096) 摘要：提出了一种基于FPGA和AD7685的电子式互感器采集系统的设计方案，给出了具体的基于多传感数据 融合技术的积分方法，在FPGA中采用Verilog HDL语言编程控制AD7685进行数据采样，并将采样数据加上 CRC校验码后按规定的帧格式组帧，最后通过串口按曼彻斯特码发送。由于电子式互感器的采集系统处于高 压侧，受到激光电源输出功率的限制，故必须采取低功耗设计。该方案在Quartus II中通过功能仿真，可以满足 数据采集、传输的时序性要求。 关键词：智能变电站；电子式互感器；数据采集；多传感器数据融合技术；低功耗；FPGA 中图分类号：TM452 文献标识码：A 文章编号：t001—1390(2011)02—0076—05 Simulation of the Electronic Transformer Data System Based on FPGA and Multi—sensor Data Fusion Technique YUE Yun，ZHU Chao，MEI Jun，ZHENG Jian—yong (School of Electrical Engineering，Southeast University，Nanjing 2 1 0096，China) Abstract：An FPGA and AD7685一based method for designing digital data acquisition unit is proposed．With the use of Verilog HDL hardware description language programming，the paper put forward the concrete signal processing cir‘ cuit and the integrating method based on multi——sensor data fusion technique．FPGA can control AD7685 to sample． Then sampling data is packaged framing with CRC Check Code．Finally．FPGA outputs the data flame through the ser‘ ial port．As digital data acquisition unit of electronic transformer is in the high—voltage part，SO its power is limited by the laser power．it demands the data system to take low—power design through functional simulation in Quartus II． This method is proved to ensure the reliability of sampling data． Key words：intelligent substation，electronic transformer，dat