DC-DC DC-DC converter power converting apparatus and photovoltaic system

• Main Authors: SOOHONG KIM, YOUNGWOO JEONG
• Format: Patent
• Language: English; Korean
• Published: 05.10.2022
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-REDRADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, E.G. USINGPHOTOVOLTAIC [PV] MODULES

According to an embodiment of the present invention, a DC-DC converter comprises: a maximum power point follow-up control unit that performs maximum power point follow-up control when connected to a solar panel; and a constant current/constant voltage control unit that receives power outputted from the maximum power point follow-up control unit, outputs power having a constant voltage during constant voltage control, and outputs power having a constant current during constant current control. 본 발명의 일 실시예에 따른 DC-DC 컨버터는 통신 모듈은 태양광패널과 연결시 최대전력점 추종제어를 수행하는 최대전력점 추종제어부; 및 상기 최대전력점 추종제어부에서 출력되는 전력을 입력받고, 정전압 제어시 전압이 일정한 전력을 출력하고, 정전류 제어시 전류가 일정한 전력을 출력하는 정전류/정전압 제어부를 포함한다.