中国电机工程学报2017，Vol.37Issue(24)：7163-7173,11.DOI:10.13334/j.0258-8013.pcsee.170117
计及短线路同杆并架双回线的输电网混合状态估计
A Hybrid State Estimation Algorithm for Transmission System Considering the Short Untransposed Double-circuit Lines
刘阳升 1林济铿 1戴赛 2申丹枫 1郭凌旭 3张耀先 4孟宪朋 5祁鑫6
作者信息
- 1. 同济大学电子与信息工程学院,上海市嘉定区 201804
- 2. 中国电力科学研究院有限公司,北京市海淀区 100192
- 3. 天津电力公司调度中心,天津市河北区 300010
- 4. 天津泰达电力有限公司,天津市滨海区 300457
- 5. 国网河北省电力有限公司,河北省石家庄市 050021
- 6. 国网宁夏电力公司调度控制中心,宁夏回族自治区银川市 750001
- 折叠
摘要
Abstract
The paper proposed a fast and accurate hybrid state estimation algorithm for networks with short, unsymmetrical double-circuit lines. By theoretical analysis, it was found that the cause of the significant estimation error of reactive power of double-circuit lines is that inequality of self-impedance matrix and of mutual-impedance matrix between them result in parameters asymmetry. By simulation analysis, the influence factors of the transmission power difference of the line I and II were found. It was concluded that in order to realize the precise transmission reactive power estimation of short, untransposed double-circuit lines, three-phase state estimation algorithm must be adopted. We further proposed a fast hybrid single-phase and three-phase state estimation algorithm usingπ equivalent circuit for the transmission network and a strategy of the automated determination of the location of theπ equivalent circuit. Effectiveness and validity of the theory analysis, the proposed model and algorithm was illustrated and demonstrated by the calculation results of IEEE-118 test system.关键词
无功功率估计/参数不对称/短线路不换位同杆并架双回线/混合状态估计Key words
reactive power estimation/parameter asymmetric/short untransposed double-circuit lines/hybrid state estimation分类
信息技术与安全科学引用本文复制引用
刘阳升,林济铿,戴赛,申丹枫,郭凌旭,张耀先,孟宪朋,祁鑫..计及短线路同杆并架双回线的输电网混合状态估计[J].中国电机工程学报,2017,37(24):7163-7173,11.
