The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Safety Evaluation of the Transformer for the Public Rental Apartments Considering the Increase of EVs

전기자동차 보급에 따른 공공임대아파트의 변압기 안정성 평가에 관한 연구

  • Choi, Jihun (Dept. of Electrical Engineering, Hanyang University) ;
  • Kim, Sung-Yul (Dept. of Electrical Energy Engineering, Keimyung University) ;
  • Lee, Ju (Dept. of Electrical Engineering, Hanyang University)
  • Received : 2017.02.09
  • Accepted : 2017.06.20
  • Published : 2017.07.01
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Abstract

This paper aims to analyze the safety evaluation of the existing transformer for the 0.85 millions of public rental apartments as EVs(Electric Vehicles) increase in order to overcome the environment pollution issue and maintain sustainable development. It is analyzed that the 56.4% capacity of power transformer could secure as EV charging infrastructure, based on the analysis of respective utilization patterns of the housing and power transformer. The acceptable number of EVs is 0.04~0.06 per household from the spare capacity of the power transformer. It is analyzed that EV stock is prospected less than 0.03 per household in 2030, considering the condition of the public rental apartments residents and the growth rate of EVs according to practical scenario. The power demand for EVs is within the allowable capacity range of the power transformer, so the research shows that there is no problem in the stability of the existing transformer until 2030.

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References

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