Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study on Evaluation for Risk Level in Transmission Network Connected with Renewable Energy

신재생에너지 계통 연계에 따른 송전망 Risk Level 평가에 대한 연구

  • 김성열 (한양대학교 전기공학과) ;
  • 문상근 (한양대학교 대학원 전기공학과) ;
  • 김진오 (한양대학교 전기제어생체공학부)
  • Received : 2010.11.19
  • Accepted : 2010.12.28
  • Published : 2011.02.28
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Abstract

A Renewable Portfolio Standard(RPS) is a regulation that requires the increased generation of energy from renewable energy sources such as solar, wind, fuel cell, small hydro, biomass and geothermal. By environmental, technical and these regulatory reasons, the amount of renewable energy sources will be increased in a network. However, it is hard to assess risk of a transmission network with large scale renewable energy sources because the output characteristics of renewable energies are intermittent. This paper evaluates effects of a transmission system with supplemental large scale renewable energies into the existing system. To evaluate these effects, a methodology for risk level of components in a network is proposed considering steady state and contingency N-1 in this paper. We consider line current and bus voltage in each state of a network.

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