Comparative Study between Two and Single-loop Control of Boost Converter for PVPCS
태양광용 부스트 컨버터의 2중 루프 제어 및 단일 루프 제어의 특성 비교
- Kim, Dong-Whan (Dept. of Electrical Engineering, Kwangwoon University) ;
-
Im, Ji-Hoon
(Dept. of Electrical Engineering, Kwangwoon University)
;
-
Song, Seung-Ho
(Dept. of Electrical Engineering, Kwangwoon University)
;
-
Choi, Ju-Yeop
(Dept. of Electrical Engineering, Kwangwoon University)
;
-
An, Jin-Ung
(Daegu Gyeongbuk Institute of Science & Technology)
;
-
Lee, Sang-Chul
(Daegu Gyeongbuk Institute of Science & Technology)
;
-
Lee, Dong-Ha
(Daegu Gyeongbuk Institute of Science & Technology)
- 김동환 (광운대학교 전기공학과) ;
-
임지훈
(광운대학교 전기공학과)
;
-
송승호
(광운대학교 전기공학과)
;
-
최주엽
(광운대학교 전기공학과)
;
-
안진웅
(대구경북과학기술원)
;
-
이상철
(대구경북과학기술원)
;
-
이동하
(대구경북과학기술원)
- Published : 2012.03.29
Abstract
In photovoltaic system, the characteristic of photovoltaic module such as open circuit voltage and short circuit current will be changed because of cell temperature and solar radiation. Therefore, a boost converter of the PV system connects between the output of photovoltaic system and DC link capacitor of grid connected inverter as controlling duty ratio for maximum power point tracking(MPPT). This paper shows the dynamic characteristic of the boost converter by comparing single-loop control algorithm and two-loop control algorithm using both analog and digital control. The proposed both compensation method has been verified with computer simulation and simulation results obtained demonstrate the validity of the proposed control schemes.
Keywords