A Study of Load Matching on the Net-Zero Energy House

Beob-Jeon Kim; Hee-Won Lim; Deok-Sung Kim; U-Cheul Shin

doi:10.7836/kses.2018.38.4.055

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2018 Vol.38, Issue 4 Preview Page Next Page

Research Article

A Study of Load Matching on the Net-Zero Energy House 넷 제로에너지주택의 부하매칭에 관한 연구

30 August 2018. pp. 55-66

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Abstract

nZEH (net-Zero Energy House) is defined as a self-sufficient energy building where the sum of energy output generated from new & renewable energy system and annual energy consumption is zero. The electricity generated by new & renewable energy system with the form of distributed generation is preferentially supplied to electrical demand, and surplus electricity is transmitted back to grid. Due to the recent expansion of houses with photovoltaic system and the nZEH mandatory by 2025, the rapid increase of distributed generation is expected. Which means, we must prepare for an electricity-power accident and stable electricity supply. Also electricity charges have to be reduce and the grid-connected should be operated efficiently. The introduction of ESS is suggested as a solution, so the analysis of the load matching and grid interaction is required to optimize ESS design. This study analyzed the load matching and grid interaction by expected consumption behavior using actual data measured in one-minute intervals. The experiment was conducted in three nZEH with photovoltaic system, called all-electric houses. LCF (Load Cover Factor), SCF (Supply Cover Factor) and f_grid (Grid Interaction Index) were evaluated as an analysis indicator. As a result, LCF, SCF and f_grid of A house were 0.25, 0.23 and 0.27 respectively; That of B house were 0.23, 0.23, 0.19, and that of C were 0.20, 0.19, 0.27 respectively.

Keywords

Grid Interaction

Distributed Generation

Load Matching

net-Zero Energy House

키워드

계통상호작용

분산발전

부하매칭

넷 제로에너지주택

References

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Information

Publisher :Korean Solar Energy Society
Publisher(Ko) :한국태양에너지학회
Journal Title :Journal of the Korean Solar Energy Society
Journal Title(Ko) :한국태양에너지학회 논문집
Volume : 38
No :4
Pages :55-66
Received Date : 2018-06-12
Revised Date : 2018-07-05
Accepted Date : 2018-07-10
DOI :https://doi.org/10.7836/kses.2018.38.4.055

Journal of the Korean Solar Energy Society ISSN:1598-6411(Print) 2508-3562(Online) 한국태양에너지학회 논문집

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