J4 ›› 2011, Vol. 10 ›› Issue (4): 35-37.
为满足国家和供电部门对谐波和负序电流的限制要求，从保证磷基内部供电系统的安全和改善磷基供电的电能质量
角度出发，配合总降的功率因数补偿和谐波滤波装置，设计了一种针对磷炉运行过程中产生的谐波和负序电流特性的监测保护系统。通过数据采集站完成对磷炉谐波和负序电流的采集、分析，并通过网络将分析结果传送到总降监视操作站，以达到对电力谐波和负序的监测并实现对系统的保护。
With the limit requirements of harmonic and negative seq~3ence CuiTent of national and electricity se~or，as wdl as the security and quality of the ph0sph0rus—based internal power supply system，the monitoring and protection system was designed to detect power harmonic and negative sequence current produced in process of phosphorus furnace operation using harmonic filtering to match the overall drop in power factor compensation．The data of harmonic and negative sequence current was collected and anal7zed by the
data acquisition station，and results of the analysis were transmitted through the network to the head monitor and operation station of overall drop．By the data，the monitoring and protection system can monitor power harmonic and negative sequence current and protect power supply system．
