基于PSASP的同煤电网最优潮流分析

以大同煤矿电网经过多年的改造与扩建,虽已经形成了一个完整的供电系统,但很多变电站的变压器为国家73标准和86标准变压器,导致大同煤矿供电系统网损过高,为了降低大同煤矿电网损耗,使整个大同煤矿供电网在经济、合理的状态中运行,节约电能、降低电力成本、提高企业经济效益,利用PSASP电力系统综合仿真程序对大同煤矿电网进行潮流分析和网损分析,获得了大同煤矿电网的改造方案.通过最优潮流建模,使用PSASP建立最优潮流作业,以网损最小的目标函数进行最优潮流计算,获得最优潮流计算结果,结果表明:大同煤矿电网总有功损耗减小了3.52%,总无功损耗减小了3.48%.

Optimal power flow analysis on Datong coal mine grid based on PSASP

After renovation and expansion for many years,Datong coal mine power grid has become a complete power supply system.However,the wide application of the 73 and 86 national standard transformers results in heave power loss in the Datong coal mine power supply system.This paper uses a PSASP power system simulation program to analyze the tidal current and grid loss in Datong coal mine grid,and obtains an improved plan,which could make the whole power grid operate in an economic and rational state to save energy,reduce electricity cost and improve the economic efficiency.At the same time,through rebuilding optimal power flow model,this paper establishes an optimal power flow operation using PSASP.Subsequently,using a minimum loss as objective function,an optimal power flow is obtained.The study conclusion shows that the power loss of substation reduces 3.52% and the total reactive power loss decreases 3.48%.