State estimation of distribution network based on hybrid measurement combined with multi-source asynchronous data

At present, the redundancy of real-time measurement in distribution network is low and the mixed measurement is incompatible, Hybrid measurement combined with multi-source asynchronous data such as SCADASCADA/ smart distribution transformer information acquisition system (SDTIAS), anew state estimat...

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Published in:Energy reports 2022-07, Vol.8, p.1778-1783
Main Authors: Wu, Zhenjie, Ye, Lin, Liao, Pei, Li, Chengda, Zhou, Zhengyang, Li, Suirong, Sun, JianFeng
Format: Article
Language:English
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Multi source asynchronous data fusion
Quadratic constrained quadratic estimation
SDTIAS/ SCADA hybrid measurement
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creator Wu, Zhenjie
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description At present, the redundancy of real-time measurement in distribution network is low and the mixed measurement is incompatible, Hybrid measurement combined with multi-source asynchronous data such as SCADASCADA/ smart distribution transformer information acquisition system (SDTIAS), anew state estimation based on SCADASCADA and SDTIAS is proposed in this paper. Firstly, SDTIAS and SCADA measurements are matched and synchronized; Then, the quadratic multi-source asynchronous measurement model is constructed, the quadratic equality constraint is established, the unified modeling of multi-source asynchronous measurement is realized; Finally, the proposed model and algorithm are simulated and verified in the standard test system, The results show the error seven times lower than traditional methods, and the calculation efficiency (100 Statistics) is increased by 35%, indicating better accuracy and higher efficiency.
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Quadratic constrained quadratic estimation
SDTIAS/ SCADA hybrid measurement
title State estimation of distribution network based on hybrid measurement combined with multi-source asynchronous data
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