• Research Article

    Analysis of Onshore Wind Exclusion Area on Regional Setback Distances in Local Government Ordinance

    지자체 이격거리 규제에 따른 육상풍력 가용입지 분석

    Hwang Su-Jin, Kim Keon-Hoon, Song Jeong-Eun, Hong Sung-Hee, Kim Hyun-Goo, Kim Jin-Young

    황수진, 김건훈, 송정은, 홍성희, 김현구, 김진영

    The distribution of onshore wind power generation in Korea is being delayed, and location problems are considered as the primary cause. To … + READ MORE
    The distribution of onshore wind power generation in Korea is being delayed, and location problems are considered as the primary cause. To solve this problem, an onshore wind power siting atlas has been developed, which shows the environment, forest, and resource location of onshore wind power overall. The local government may determine matters regarding the separation distance, height, and arrangement, for a specific building or structure. With the gradual spread of wind power generation, the interest of local governments has increased. The number of local governments applying the setback regulation for wind power generation has increased from 20 in 2018 to 52 in 2022, which is approximately 1.6 times in 4 years. The setback regulation has emerged as a central issue in the onshore wind power siting problem because the application targets and setback distance standard vary depending on the local government. Therefore, we evaluated the effect of the setback regulation of the local governments on the onshore wind power location. Based on the onshore wind farm siting atlas, a geographic database, containing spatial data representing 60 influencing factors and 6 setback regulation scenarios, was constructed. The onshore wind power location change according to the setback regulation was analyzed by actualizing the separation distance and analyzing scenarios. - COLLAPSE
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    28 February 2023

  • Research Article

    A Study on Economic Analysis of Independent Pillar Type Agrophotovoltaic and High Value-Added Crop Cultivation

    독립지주 영농병행 태양광 발전 및 고부가가치 작물 재배 실증을 통한 경제성 분석 연구

    Jo Geonyoung, Yu Jeonghak, Park Jung-jae, Yang Na-rae, Lim Cheol-hyun, Park Tae-sik

    조건영, 유정학, 박정재, 양나래, 임철현, 박태식

    This study entailed an economic feasibility analysis for a 100 kW agrophotovoltaic model based on the empirical data of a 20 kW … + READ MORE
    This study entailed an economic feasibility analysis for a 100 kW agrophotovoltaic model based on the empirical data of a 20 kW independent pillar type agrophotovoltaic system and crop growth evaluation data. The blueberry growth investigation indicated the absence of any significant difference in transverse diameter, longitudinal diameter, sugar content, and acidity of the experimental and control groups. However, the sugar content of the second harvested blueberries was higher than that of the first harvest. In addition, the number of fruit set in the experimental group was 663.1, and that in the control group was 767.1. This is attributable to the delayed blooming time of blueberry flowers owing to the decrease in solar radiation caused by the shading of the agrophotovoltaic modules. The average income per 20a of blueberries, a high value-added crop, was calculated to be 20,517,000 won. The average annual power generation of 100 kW agrophotovoltaic, total generation cost, and net profit were calculated to be 130,481 kWh, 22,313,000 won, and 9,872,000 won, respectively. In addition, the revenue from the high-value-added crops of the agrophotovoltaic system was 20,517,000 won, and the net profit through power generation was calculated as 9,872,000 won, thereby indicating higher profits through crops. - COLLAPSE
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    28 February 2023

  • Research Article

    Study on the Comparison of the Computer Simulation and Empirical Measurement of Solar Radiation in Farmland under the Independent Pillar type Agrophotovoltaic System

    독립지주식 영농형 태양광 하부 농지 내 일사량 전산모사 및 실측 비교 연구

    Shin Yunchan, Park Jeong-woo, Jo Geon-young, Lim Cheol-hyun , Park Jung-jae

    신윤찬, 박정우, 조건영, 임철현, 박정재

    This study entailed computational simulations and empirical measurements on solar radiation changes in farmland owing to shade generated from the lower part … + READ MORE
    This study entailed computational simulations and empirical measurements on solar radiation changes in farmland owing to shade generated from the lower part of an independent pillar-type agrophotovoltaic system structure with improved performance and economic feasibility. The computational simulation and empirical results show a relatively low average solar radiation incident ratio at positions 3–7. In particular, at position 5, the average solar radiation incident ratio exhibits the lowest value, as indicated by the computer simulation and demonstration results. Consequently, three types of improved models were devised to improve the long-term shading area at positions 3–7. The average solar radiation incident ratio on the direct rear side of the module in Model 1 is lower than that of the existing system, whereas that on the direct rear side of Model 2 is 74.4%, which is the highest value. Furthermore, the corresponding value on the direct rear side of the module in Model 3 is 70.0%, which was higher than that of the existing system. Therefore, Models 2 and 3 demonstrate that the growth environment of crops could be improved using an agrophotovoltaic system. - COLLAPSE
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    28 February 2023

  • Research Article

    Literature Review Study for SHGC Performance Evaluation Methods of Semi-transparent BIPV System

    투광형 건물일체형태양광(BIPV) 시스템의 SHGC 성능 평가를 위한 문헌 분석 연구

    Ahn Jonggwon, Kim Jinhee, Kim Juntae

    안종권, 김진희, 김준태

    A building-integrated photovoltaic (BIPV) system is a renewable energy system that generates electricity and functions as a building envelope for zero energy … + READ MORE
    A building-integrated photovoltaic (BIPV) system is a renewable energy system that generates electricity and functions as a building envelope for zero energy buildings (ZEBs). BIPV can be applied to roofs, façades, and window systems. In particular, a semi-transparent BIPV applied to window systems is designed to satisfy the thermal performance requirements of national standards. The solar heat gain coefficient (SHGC) is used to estimate the solar radiation that passes through the glass relative to the amount of solar radiation hitting the glass. The SHGC of a semitransparent BIPV system change with the PV cell ratio, design, and electrical performance of the system. However, studies on the performance evaluation of SHGC for semitransparent BIPV systems are scarce. In this study, a method for evaluating the SHGC of a semitransparent BIPV system was investigated. The results indicate that SHGC values for the semi-transparent BIPV system should be studied for different operating conditions as indicated by maximum power point (MPP) and open circuit (OC) values. This is because the SHGC of the system changes with the power generation of the PV cells. - COLLAPSE
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    28 February 2023

  • Research Article

    On Data Characteristics and Status of the Monitoring System of Domestic Solar Power Generation System

    국내 태양광 발전 시스템의 운전 모니터링 시스템 현황과 데이터 특성

    Kim Jeongbae

    김정배

    This study entailed investigations on the current status of monitoring systems or platforms that provide important operating data usable as reference data … + READ MORE
    This study entailed investigations on the current status of monitoring systems or platforms that provide important operating data usable as reference data in the design stage of photovoltaic (PV) power generation facilities. Thus, insights into the operating characteristics of such facilities were gained. This survey of the literature identified the features, namely, ‘renewable energy cloud platform,’ ‘renewable energy integrated monitoring system (REMS),’ and ‘public data portal’; a quantitative analysis was performed using the obtained dataset. The quantitative analysis confirmed that inaccuracies and data errors occasionally occur in individual monitoring systems. Nevertheless, by using a large amount of high-accuracy long- term data, a clear standard for daily operating hours, which can be the most important data in the design of PV power generation facilities, was devised. - COLLAPSE
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    28 February 2023

  • Corrigendum

    CORRIGENDUM to: Grey-box Model Development and MPC Simulation of Campus Office Zone Based on Actual Measurement

    실측 데이터 기반 교육시설 건물의 Grey-box 모델 개발 및 MPC 시뮬레이션

    Choi Kwangwon, Joe Jaewan

    최광원, 조재완

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    28 February 2023
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