摘要
为得到变电站工频电场的详细分布,提出了一种将压缩感知理论应用于工频电场逆问题计算的方法,该方法只要求在监控区域内随机部署少量的电场场强监测点,经设计的压缩感知贪婪重构算法得出场源参数和场强分布云图。变电站设备和线路故障,或者作业人员接近高场强危险区域,往往引起场强云图的变化,将重构的场强云图与正常运行状态的场强云图进行比对,为无接触式的设备故障在线监测和作业人员近电告警安全保障提供了新的思路。介绍了仿真结果。
In this paper, a calculation method for the detailed distribution of power frequency electric field via com- pressed sensing is proposed. The method requires only a small amount of electric field strength data which collected by randomly deployed monitoring equipment, and the source parameters and field strength map can be reconstructed by the designed greedy matching pursuit algorithm. The changing of field strength map is usually caused by the failure of substation devices, or by the staff＇s entering the danger zone of high field strength. A new way of thinking for the non-contact equipment monitoring and substation operation safety is provided through the comparison of the recon- structed field strength map with the normal field strength map. Simulation results was introduced.
出处
《华东电力》
北大核心
2013年第9期1779-1782,共4页
East China Electric Power
基金
国家电网公司科技项目资助(J2013043)~~
关键词
压缩感知
工频电场
逆问题
compressed sensing, power frequency electric field, inverse problem
