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http://dx.doi.org/10.5370/KIEE.2014.63.11.1608

Power Demand Forecasting in the DC Urban Railway Substation  

Kim, Han-Su (Dept. of Electrical Engineering, Inha University)
Kwon, Oh-Kyu (Dept. of Electrical Engineering, Inha University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.63, no.11, 2014 , pp. 1608-1614 More about this Journal
Abstract
Power demand forecasting is an important factor of the peak management. This paper deals with the 15 minutes ahead load forecasting problem in a DC urban railway system. Since supplied power lines to trains are connected with parallel, the load characteristics are too complex and highly non-linear. The main idea of the proposed method for the 15 minutes ahead prediction is to use the daily load similarity accounting for the load nonlinearity. An Euclidean norm with weighted factors including loads of the neighbor substation is used for the similar load selection. The prediction value is determinated by the sum of the similar load and the correction value. The correction has applied the neural network model. The feasibility of the proposed method is exemplified through some simulations applied to the actual load data of Incheon subway system.
Keywords
Railway; Substation; Load forecasting; Similar load; Neural network;
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