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文章摘要
智能监测系统下的线性电网状态估计研究
Research on State Estimation of Linear Grid Based on Intelligent Monitoring System
Received:September 23, 2019
Revised:September 23, 2019
DOI：
10.19753/j.issn1001-1390.2021.10.017
中文关键词
:
电力监测系统
状态估计
PMU
线性RTU
概率状态估计
英文关键词
:
基金项目
:
国家电网有限公司科技研发项目（项目名称：第三代智能变电站辅助系统研究，项目编号：520530180015）
Author Name
Affiliation
E-mail
zhangxiaolan
*
State Grid Shaanxi Electric Power Research Institute
zhangxl1598@163.com
guyonggang
State Grid Shaanxi Electric Power Company
281901738@qq.com
zhangshaoqiang
State Grid Shaanxi Electric Power Company
281901738@qq.com
ligeng
State Grid Shaanxi Electric Power Company
281901738@qq.com
yangchuanxiong
State Grid Shaanxi Electric Power Company
281901738@qq.com
wangshuai
State Grid Shaanxi Electric Power Company
281901738@qq.com
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中文摘要
:
针对传统电力监测系统状态估计（SE）的非线性导致的测量数据错误、不确定性和准确率低等问题。本文提出了一种改进的RTU线性状态估计模型，该模型在智能监测系统下的状态估计器内并入PMU和RTU测量，对其进行了算法改进，使整个SE问题呈线性，提升电力监测系统状态估计准确性。实验中将传统的RTU和改进的RTU线性状态估计模型依次分配给系统总线4，对噪声变量和估计误差进行了概率状态估计。结果表明，改进的RTU线性状态估计模型整体性能优于传统的非线性模型，计算速度快、节约内存，提升了整个SE的准确性。该模型为未来大型电力智能检测系统进行电网状态估计提供有力的理论与技术支持。
英文摘要
:
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