摘要
针对越来越多的研究利用由广域测量系统(wide area measurement system,WAMS)和监控及数据采集系统(supervisory control and data acquisition,SCADA)组成的混合测量来改善传统状态估计的情况,在分析WAMS/SCADA混合测量数据兼容性的基础上,提出一种可行的兼容方案解决混合测量的数据兼容问题。研究从WAMS和SCADA的数据差异入手,建立混合测量模型,分析得出2种数据的时间同步性和测量权值为影响混合测量数据兼容的主要因素,进而提出兼容方案,实现WAMS和SCADA数据的同步,并重新量化测量权值。在标准测试系统上的仿真验证了关于WAMS/SCADA混合测量状态估计数据兼容性分析的正确性和兼容方案的有效性。
Aiming at the problem that more and more studies used hybrid data of wide area measurement system （WAMS） and supervisory control and data acquisition （SCADA） to improve the traditional state estimation, a new method to solve the compatibility problem of WAMS/SCADA hybrid data was proposed. Firstly, the differences between WAMS and SCADA are analyzed, and through the built WAMS/SCADA hybrid data model, we can conclude that time synchronization and measure weights are the main factors which affect the compatibility of hybrid data. Therefore, data dependence analysis is used to implement the synchronization of WAMS and SCADA data, and to re-quantify the measure weights by considering the delay distribution of measure data. The simulation results of standard-test system show the accuracy of compatibility analysis and the validity of compatibility method.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2010年第16期60-66,共7页
Proceedings of the CSEE
基金
"十一五"国家科技支撑计划重大项目(2008BAA13B04)~~
关键词
相量测量单元
广域测量系统
电力系统
状态估计
混合测量
兼容
phasor measurements unit （PMU）
wide area measurement system （WAMS）
power system
state estimation
hybrid measurement
compatibility
