基于WAMS的在线电压稳定指标  

WAMS -Based Online Voltage Stability Indicator

作　　者：舒在提[1] 陈蕾[2] 

机构地区：[1]胜利油田黄河钻井四公司,山东东营257046 [2]胜利油田地球物理勘探开发公司,山东东营257100

出　　处：《西安电力高等专科学校学报》2008年第3期10-13,共4页

摘　　要：本文基于支路潮流模型，并在计及负荷静态特性的基础上，提出了基于WAMS的在线电压稳定指标。该指标是利用PMU时间断面电压相量和负荷功率计算而获得。并将所有负荷节点稳定指标最大值作为评估系统电压稳定状况的标准。在IEEE-30节点系统的仿真结果验证了方法的有效性和在线应用的可行性。An on - line vohage stability based on WAMS is presented. It is deducted based on model of branch power flow and considering load static characteristics. This index is obtained by simple calculation based on PMU measurement of voltage phasor and load power. The maximum volume of voltage stability index of all load bus is regarded as evaluation criteria of the whole system voltage stability. The distance between voltage stability index and the critical value 1 denotes the margin of voltage stability. The smaller the distance of index to 1, the smaller voltage stability margin. Simulation results verify the feasibility and effectiveness of the proposed method using IEEE -30 bus system.

关 键 词：稳定裕度 电压崩溃 广域测量系统(WAMS) 

分 类 号：TM71[电气工程—电力系统及自动化]