지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 김재언
- 발행연도
- 2020
- 저작권
- 충북대학교 논문은 저작권에 의해 보호받습니다.
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Recently, the demand of PV generation system is continuosly increasing due to the government''s renewable energy policy. In addition, as the low-voltage range of DC expands to 1,500V in 2021, PV generation systems using DC voltage is expected to be positively affected.
However, the cables used in domestic for DC wiring of PV generation system have problems that it is not suitable for applying an extended low-voltage because it has a rated voltage of 1kVac. That is, in order to apply the extended low-voltage to the PV generation system, a new DC wiring cable and standard should be provided as soon as possible.
Overseas, many countries including the Germany and Japan have already made the standard and cable for DC wiring of PV generation system corresponding to DC 1,500V, but any standards and cables for DC wiring of PV generation system have not made in Korea yet.
Therefore, in this paper, I propose the amendment of the Korea Electro-technical Code be applied in 2021 and design method to prepare the DC wiring of PV generation system applicable to DC 1,500V
It is expected that regulations on DC wiring cable of PV generation system will be created through the amendment of Korea Electro-technical Code, and the design method for DC wiring of PV generation system applied to the construction cases to check the changes and cost of PV generation system according to voltage range. Through this process, I expect to ensure the stability of DC wiring of PV generation system and make a successful transition to DC 1,500V.
However, the cables used in domestic for DC wiring of PV generation system have problems that it is not suitable for applying an extended low-voltage because it has a rated voltage of 1kVac. That is, in order to apply the extended low-voltage to the PV generation system, a new DC wiring cable and standard should be provided as soon as possible.
Overseas, many countries including the Germany and Japan have already made the standard and cable for DC wiring of PV generation system corresponding to DC 1,500V, but any standards and cables for DC wiring of PV generation system have not made in Korea yet.
Therefore, in this paper, I propose the amendment of the Korea Electro-technical Code be applied in 2021 and design method to prepare the DC wiring of PV generation system applicable to DC 1,500V
It is expected that regulations on DC wiring cable of PV generation system will be created through the amendment of Korea Electro-technical Code, and the design method for DC wiring of PV generation system applied to the construction cases to check the changes and cost of PV generation system according to voltage range. Through this process, I expect to ensure the stability of DC wiring of PV generation system and make a successful transition to DC 1,500V.
목차
Ⅰ. 서 론 11.1 연구배경 및 필요성 11.2 논문 구성 3Ⅱ. 저압범위 확대에 따른 태양광발전시스템 직류배선 설계상의 문제점 42.1 국내외 태양광발전시스템 직류배선 케이블 규격 및 비교분석 42.1.1 저온시험 62.1.2 고온시험 82.1.3 환경시험 102.1.4 전기시험 112.2 문제점 132.2.1 수명 142.2.2 정격전압의 불일치 152.2.3 배선비용의 증가 15Ⅲ. 태양광발전시스템 직류배선 설계방법 173.1 태양광발전시스템 직류배선 규정사항 173.1.1 전기설비기술기준의 판단기준 183.1.2 태양광 시공기준 183.1.3 한국전기설비규정 193.2 한국전기설비규정 개정안 203.3 태양광발전시스템 직류배선 설계방법 223.3.1 발전용량 및 시스템전압 결정 233.3.2 스트링 및 어레이 구성 233.3.3 컨버터 및 인버터의 정격 및 수량 결정 243.3.4 스트링 전류 계산 243.3.5 태양광발전 직류배선 케이블 결정 253.3.6 스트링 및 어레이 배선의 배치 결정 253.3.7 직류배선 공사 26Ⅳ. 태양광발전시스템 직류배선 설계방법의 적용 및 고찰 274.1 직류배선 설계방법의 적용 대상선정 274.2 직류배선 설계방법의 적용 및 고찰 284.2.1 설계방법의 적용 284.2.2 고찰 32V. 결론 36참 고 문 헌 37
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