电子式电压互感器的方案设计与计算机仿真.doc

中文资料 电子式电压互感器的方案设计 与计算机仿真 目录 摘要 1 关键词 1 Abstract 1 Keywords 2 1绪论 3 1.1 题目背景及目的 3 1.2国内外研究状况 4 1.3 论文构成及研究内容 5 2 互感器结构及参数计算 6 2.1电容式电压互感器工作原理 6 2.2电阻式电压互感器工作原理 8 2.3阻容分压型互感器工作原理及参数计算 9 总结 11 参考文献 12摘要：随着中国社会主义经济的飞速发展，电力技术也必须不断发展，使得它能适应中国农工商业的用电需求。电力系统输电容量的不断扩大，远距离输电迅速增加，电网等级的不断提高。为了使变电站自动化的技术进一步改善，互感器不断的改良更新，使二次系统起到更精确的测量和监控作用。 常规电磁感应式电压互感器有着很多不可克服的缺点，使新型电子式电压互感器成为当今世界的一个热门研究方向，电子式电压互感器结合了光纤通信和集成电路的一些特点，具有体积小，重量轻，频带宽，数字输出，便于与计算机连接，性价比高，而且采用非磁性材料作为传感器，无饱和，无谐振，克服了传统互感器先天不足的缺陷。 本文通过对几种电压互感器的结构分析，比较其各自的优缺点，最终选择了阻容式电压互感器作为本文的研究对象。通过初步电路设计，原理分析，参数计算，确定阻容式分压式传感器的结构组成。 关键词：阻容式分压器；电压互感器；传感器。 Abstract：With Chinas socialist economic development, power technology also must constantly, making it can adapt to the development of Chinese am commercial electricity demand. Power system transmission capacity continues to expand, long-distance transmission increases rapidly, grid levels of continuous improvement. In order to further improve the substation automation technology constantly improved, transformer, make the second system update to play a more precise measuring and monitoring role. Conventional electromagnetic induction type voltage transformer has many insurmountable shortcomings, make new type of electronic voltage transformers in the world today, one of the hottest research direction of electronic voltage transformers combines optical fiber communication and integrated circuit, has some characteristics of small volume, light weight, wide frequency band, digital output, facilitate and computer connections, cost-effective, and non-magnetic material as the sensor, no saturated, no resonance, to overcome the defects of traditional transformer congenital deficiency. This article through to several of voltage transformer structure analysis and compares the advantages, disadvantages, finally choosing resistance let type paper voltage transformer as the object of study. Through the preliminary circuit design, the principle analysis, parameter calculation, determine the resist