摘要
针对如何在线实现煤矿电网功率因数提高问题,本文提出了一种实时在线提高功率因数的方法,首先,通过电网监测系统,建立实时数据库,对电网系统的运行状况进行实时跟踪.其次,在此基础上,对系统进行实时状态估计,纠正系统在线上传数据信息的错误.最后,对系统进行潮流计算,得到系统功率因数,并对功率因数不合格的节点进行无功补偿,实现功率因数的提高.通过对某一煤矿电网实例进行仿真,验证了本文提出方法的正确性.
Abstract
Aiming at improving the power factor of coal mine power grid,this paper proposes a real-time online method to improve the power factor of coal mine power grids.Firstly,utilizing the power grid monitoring system,a real-time database is established to track the operational status of the power grid system in real time.Secondly,real-time state estimation is performed on the system to correct errors in uploading data information online.Finally,calculating power flow of the system to obtain the system power factor,and perform reactive power compensation on nodes with unqualified power factors to achieve an improvement in power factor.The correctness of the method was verified by simulation of a coal mine power grid example.
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