ThaiScience
ThaiScience
ENGINEERING JOURNAL CHIANG MAI UNIVERSITY
Volume 26, No. 03, Month DECEMBER, Year 2019, Pages 111 - 127
Cost of electricity loss analysis in distribution system from delayed substation construction
Nantachai Kantanantha and Pantiwa Chitkrue
Abstract Download PDF
One critical issue of low power distribution efficiency is that there is not enough substation. This causes the electric power must be transmitted along the transmission line for a long distance which periodically results in the instability of the electric power distribution. Therefore the objective of this research is to analyze the electric power loss in the system. The electric power loss estimation is divided into two parts. The first part is the electric power loss due to the power transformer in the substation which is estimated from the electric power loss during unloading, loading and other factors. The second part is the electric power loss due to the medium voltage transmission line which is calculated using the power flow principle by Newton-Raphson method from the developed MATLAB program. Then the estimated electric power loss is calculated in terms of money according to the time to build a new substation. The result shows that the cost of electric power loss will increase over time. The hourly electric power loss is 497.18 kW, equivalent to 2,542.35 baht per hour. The cost of electric power loss will be taken into consideration of the case study substation construction at the appropriate time.
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Published by : Faculty of Engineering Chiang Mai University
Contributions welcome at : http://researchs.eng.cmu.ac.th/?name=journal
