摘要
随着当前电力系统中同步相量测量单元(Phasor Measurement Unit,PMU)的广泛应用,使得借助于刷新频率高的PMU信息来提高电力系统网络拓扑分析快速性成为可能。在分析厂站内母线相连与否情况下的支路电流和母线电压的不同特征的基础上,提出基于同步相量测量的厂站内拓扑分析新方法。新方法综合运用PMU获取的开关状态和电流电压同步相量信息,根据进出线的电流相量是否满足基尔霍夫电流定律以及两母线的电压相量是否相等来实现厂站内母线的划分,从而避开了传统算法仅依靠搜索闭合开关来实现母线划分的不足。算例表明,新方法可以完成各种接线方式下的厂站内网络拓扑分析,具有良好的准确性和适用性,并具有一定的容错能力。
With the wide application of the PMUs, it is possible to improve the rapidity of the power system network topology analysis by use of the PMU data in a high uploading rate. After analyzing the different characteristics of branch currents and bus voltages when the buses are connected or not in the substation, a new substation configuration algorithm is proposed based on synchronized measurements. The novel one adopts an integrated utilization of the state information of circuit breakers （ CBs ） and the synchro-phasor information of voltage and current, and classifies the buses mainly based on whether the current phasor meets the fundamental Kirchhoff Current Law （ KCL ） and the fact that whether the voltage phasors of two buses are equal or not. The proposed method is succeeded in avoiding the disadvantage of traditional methods in which the status information of CBs is the only one used data source. Finally, the example results have validated the efficiency of the method referred above, which can be used to finish all kinds of substation configuration analysis accurately and reliably, even with some fault tolerance of switch status. This work is supported by Key Program of National Natural Science Foundation of China （No. 50837002）.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第17期80-86,共7页
Power System Protection and Control
基金
国家自然科学基金重点项目(50837002)~~
作者简介
钱诚（1987-），男，研究生，研究方向为电力系统继电保护：E-mail：223qe@sina．com
王增平（1964-），男，教授，博士生导师，主要从事微机保护、变电站综合自动化等方面的研究；
张晋芳（1985-），男，博士研究生，研究方向为电力系统继电保护。
