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:: Volume 5, Issue 1 (Vol.5, No.1 2019) ::
2019, 5(1): 22-38 Back to browse issues page
Two-stage estimation method presentation to improve electrical distribution networks state estimation
Karim Amiri , Rasool Kazemzadeh *
Sahand University , r.kazemzadeh@sut.ac.ir
Abstract:   (12465 Views)

The development of renewable energy sources, distributed generation, energy storage and nonlinear controllable loads in modern distribution networks has led to the consideration of the state estimation in intelligent and active distribution networks. The performance of the Energy Management Central's distribution network depends on the results of the state estimation. In this paper, two-stage estimation with the network reduction process is proposed. The number of distribution network meter is low, so obtaining accurate initial information from network conditions improves performance state estimation. The initial state estimation with the network reduction process to obtain accurate initial data is performed. The initial data are used as a measure to improve the performance of secondary estimation. This method solves the problem of scarcity of accurate measurements and improves the accuracy of the state estimation in distribution network. The results of the proposed methodology are demonstrated on the 69 nodes of IEEE  standard distribution network.

Keywords: state estimation of electrical distribution network, Weighted least square error, Synchronize Measurement, Pseudo Measurement, two stage method.
Full-Text [PDF 1580 kb]   (1641 Downloads)    
Type of Study: Research | Subject: Electrical Power Distribution Networks
Received: 2017/09/12 | Accepted: 2018/02/21 | Published: 2019/01/28
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Amiri K, Kazemzadeh R. Two-stage estimation method presentation to improve electrical distribution networks state estimation. Nonlinear Systems in Electrical Engineering 2019; 5 (1) :22-38
URL: http://journals.sut.ac.ir/jnsee/article-1-155-en.html


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Volume 5, Issue 1 (Vol.5, No.1 2019) Back to browse issues page
سامانه های غیرخطی در مهندسی برق Journal of Nonlinear Systems in Electrical Engineering
نشریه سامانه‌های غیرخطی در مهندسی برق در خصوص اصول اخلاقی انتشار مقاله، از توصیه‌های «کمیته بین‌المللی اخلاق نشر» موسوم به COPE و «منشور و موازین اخلاق پژوهش» مصوب معاونت پژوهش و فناوری وزارت علوم، تحقیقات و فناوری تبعیت می‌کند.
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