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Keywords = substation operating results management system (SOMAS)

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13 pages, 353 KiB  
Article
Evaluation of the Effects of Nationwide Conservation Voltage Reduction on Peak-Load Shaving Using SOMAS Data
by Soon-Ryul Nam, Sang-Hee Kang, Joo-Ho Lee, Seon-Ju Ahn and Joon-Ho Choi
Energies 2013, 6(12), 6322-6334; https://doi.org/10.3390/en6126322 - 3 Dec 2013
Cited by 12 | Viewed by 6121
Abstract
In this paper we propose a new method to evaluate the effects of nationwide conservation voltage reduction (CVR) on peak-load shaving, using substation operating results management system (SOMAS) data. Its evaluation is based on a national CVR factor, which is defined as the [...] Read more.
In this paper we propose a new method to evaluate the effects of nationwide conservation voltage reduction (CVR) on peak-load shaving, using substation operating results management system (SOMAS) data. Its evaluation is based on a national CVR factor, which is defined as the weighted average of CVR factors associated with all transformer banks and weighting coefficients are determined by the reconstructed loads corresponding to each transformer bank. To make use of the data resulting from nationwide CVR without installing additional measuring devices, we adopt a linearized static-load model with a linearizing parameter. SOMAS data are used to evaluate the effects of nationwide CVR on peak-load shaving in the Korean power system. Evaluation results show that the national CVR factor of the Korean power system has small values in the summer season and large values in the winter season. This means that the effect of nationwide CVR on peak-load shaving in the Korean power system presents stronger benefits during winter months. Full article
(This article belongs to the Special Issue Smart Grids: The Electrical Power Network and Communication System)
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