变电站状态估计的工程实践与效益分析

基于零阻抗支路的变电站三相非线性状态估计在变电站内进行拓扑和量测错误的辨识，从而提高调度中心状态估计的可靠性和精度。报告了该技术在工程实现中的硬件配置、站域量测信息集成、与调度中心的互联、对时与周期选择等问题，并分析其效益，表明该技术具有高可靠性和通信量小的优点，并有效提高了对电网的监控能力和实时模型的可靠性。仿真实验及华东电网现场应用验证了该技术的有效性，满足实时在线应用需求，具有广阔的推广应用前景。...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 40; no. 12; pp. 56 - 61
Main Author 李青芯 汪德星 孙宏斌 吴文传 王晶 郭庆来 张伯明
Format Journal Article
LanguageChinese
Published 电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系),北京,100084%华东电网有限公司华东电力调控分中心,上海,200002 2012
Subjects
变电站状态估计
坏数据辨识
拓扑错误辨识
效益分析
智能变电站
智能变电站
坏数据辨识
拓扑错误辨识
变电站状态估计
效益分析
Online AccessGet full text
ISSN1674-3415
DOI10.3969/j.issn.1674-3415.2012.12.010

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Summary:基于零阻抗支路的变电站三相非线性状态估计在变电站内进行拓扑和量测错误的辨识，从而提高调度中心状态估计的可靠性和精度。报告了该技术在工程实现中的硬件配置、站域量测信息集成、与调度中心的互联、对时与周期选择等问题，并分析其效益，表明该技术具有高可靠性和通信量小的优点，并有效提高了对电网的监控能力和实时模型的可靠性。仿真实验及华东电网现场应用验证了该技术的有效性，满足实时在线应用需求，具有广阔的推广应用前景。
Bibliography:LI Qing-xin, WANG De-xing, SUN Hong-bin, WU Wen-chuan, WANG Jing, GUO Qing-lai, ZHANG Bo-ming （1. State Key Lab of Control and Simulation of Power Systems and Generation Equipments （Dept of Electrical Engineering, Tsinghua University）, Beijing 100084, China 2. East China Electric Power Dispatch and Control Sub-Center, East China Grid Company Limited, Shanghai 200002, China）
41-1401/TM
substation state estimation; bad data identification; topology error identification; benefit analysis; smart substation
A substation three-phase nonlinear state estimation method based on zero impedance branches helps to identify topology and analogy errors at substation level and accordingly enhances the control center＇s state estimation reliability and accuracy. Some issues during the practical implementation process of the technology are reported, such as the hardware configuration, measurement integration, the communication between substation and control center, time setting and period selection. The benefits of the proposed te
ISSN:1674-3415
DOI:10.3969/j.issn.1674-3415.2012.12.010