Over the past few years, high step-up dc-dc converters have been drawn
substantial attention because of their wide-ranging application not only in the
renewable energy sector but also in many other applications. To acquire a high
voltage gain in photovoltaic (PV) and other renewable energy applications, a high
step-up dc-dc converter is proposed in this paper. The proposed converter
structure consists of a full-bridge (FB) module along with an input boost inductor
and a voltage multiplier based on the Cockcroft-Walton (CW) principle with a
parallel inductor. The key features of the proposed converter are: 1) high voltage
gain with lower voltage stress on the switches, diodes and other passive elements
without affecting the number of cascaded stages, 2) a minimum size of boost
inductance and cascaded stage capacitance that ensures its compactness and low
cost, and 3) a minimal number of major components. Circuit operation,
steady-state analysis and various design parameters of the proposed converter are
explained in details. In order to prove the performance of the theoretical analysis,
a laboratory prototype is also implemented. The peak voltage gain and the
maximum efficiency obtained are 11.9 and 94.6% respectively with very low input
current ripple and output voltage ripple generated.

제 1편 : SIMULINK 기본편
1.1 SIMULINK의 시작 1
블록의 연결 5
블록 파라미터의 설정 7
시뮬레이션 파라미터 (Configuration Parameters)의 설정 8
시뮬레이션의 수행 9
블록 파라미터의 표시 9
복수 데이터의 표시 11
2.2 동적 시뮬레이션 13
이차 미분방정식 17
선형 상태변수 모델 23
DC 모터의 시뮬레이션 24
함수 블록의 사용 29
차분방정식(difference equation)의 모델링 34
Subsystem(부시스템)의 구성 37
제 2편 : 연구논문
High voltage-gain full-bridge cascaded dc-dc converter for
photovoltaic application
1. Introduction 41
2. Proposed converter operating principle 43
3. Proposed converter analysis and design 46
4. Design example 49
5. Experimental and simulation evaluations 57
6. Conclusion 57
7. References 60