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Online distribution system state estimation via stochastic gradient algorithm*

delete2022-12-01
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OA
AI
J
Jianqiao Huang
X
Xinyang Zhou *
B
Bai Cui
DOI:10.1016/j.epsr.2022.108305delete
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Abstract

Abstract

En 中文
Distribution network operation is becoming more challenging because of the growing integration of intermit-tent and volatile distributed energy resources (DERs). This motivates the development of new distribution system state estimation (DSSE) paradigms that can operate at fast timescale based on real-time data stream of asynchronous measurements enabled by modern information and communications technology. To solve the real-time DSSE with asynchronous measurements effectively and accurately, this paper formulates a weighted least squares DSSE problem and proposes an online stochastic gradient algorithm to solve it. The performance of the proposed scheme is analytically guaranteed and is numerically corroborated with realistic data on IEEE 123-bus feeder.
Keywords:
Distribution system state estimation
Online asynchronous update
Stochastic gradient algorithm
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Journal

Electric Power Systems Research cover
Electric Power Systems Research
IF:
4.2
Papers:
1.1W
Citations:
2.2W

Organization

I
Illinois Institute of Technology
Scholars:
3.8K
Papers: 3.9K
Citations: 4.2K
U
united states department of energy (doe)
Scholars:
11.3W
Papers: 9.6W
Citations: 246