评估输电系统网损的概率方法  

PROBABILITY STUDY ON TRANSMISSION LOSSES OF BULK TRANSMISSION SYSTEMS

作　　者：穆钢[1] 王卫国[1] 赵灿[1] 王芝茗[1] 

机构地区：[1]东北电力学院,中国东北电力集团调度通信中心,北京动力经济学院

出　　处：《电网技术》1995年第11期35-38,53,共5页Power System Technology

基　　金：国家自然科学基金

摘　　要：输电系统的网损是随着负荷的波动而变化的。应用传统的方法要准确地评估一个月或一年这样长时间段内的网损功率的变化情况，并求出此时段内的网损电量是困难的。本文提出的网损概率分析方法，可以全面地评估输电系统中网损功率的变化规律，准确地计算出某一时段内的网损电量，为输电系统的网损分析开辟了一条新的途径。The power loss of a bulk transmissionsystem varies with the change of loads. It is not easyto describe the variation of power loss and to deter-mine the corresponding energy loss over a time period.A new mathematical model of loss evaluation which isbased on the Probability Distribution Function(PDF)is presented in this paper.The proposed model prop-erly reflects the innate characteristics of loss evalua-tion problem. An algorithm for calculating both powerloss and energy loss in proposed.The validation of themethod has been tested in the NE China bulk trans-mission system.

关 键 词：网损分析 概率分布函数 数学 模型 电力系统 

分 类 号：TM714.3[电气工程—电力系统及自动化]