Title |
Independent Generation System Design for the Economic Management of Electrical Charging Stations |
Authors |
서진규(Seo, Jin-Gyu) ; 김규호(Kim, Kyu-Ho) ; 이상봉(Rhee, Sang-Bong) |
DOI |
https://doi.org/10.5370/KIEE.2015.64.2.222 |
Keywords |
EVs charging stations ; Renewable energy ; Grid electricity ; Net present cost ; Cost of energy |
Abstract |
This paper presents the optimal energy generation systems for economical EVs(Electric Vehicles) charging stations located in an island area. The system includes grid electricity, diesel generator and renewable energy sources of wind turbines and PV(Photovoltaic) panels. The independent generation system is designed with data resources such as annual average wind speed, solar radiation and the grid electricity price by calculating system cost under different structures. This sensitive analysis on the varying data resources allows for the configuration of the most economical generation system for charging stations by comparing initial capital, operating cost, NPC(Net Present Cost) and COE(Cost of Energy). Depending on the increase of the grid cost, the NPC variation of the most economical system which includes renewable energy generations and grid electricity can be smaller than those of other generation systems. |