A novel multi winding converter in operation with maximum power point tracker for solar power system

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研究生：	Bushra Sabir Bushra Sabir
論文名稱：	A novel multi winding converter in operation with maximum power point tracker for solar power system A novel multi winding converter in operation with maximum power point tracker for solar power system
指導教授：	林長華 Chang-Hua Lin 劉華棟 Hwa-Dong Liu
口試委員:	林長華 Chang-Hua Lin 劉華棟 Hwa-Dong Liu 白凱仁 Kai-Jen Pai
學位類別：	碩士 Master
系所名稱：	電資學院 - 電機工程系 Department of Electrical Engineering
論文出版年：	2023
畢業學年度：	111
語文別：	英文
論文頁數：	85
外文關鍵詞：	multi-winding converter, Hill climbing (HC)
相關次數：	點閱：274 下載：3
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In this study, the novel DC-DC power converter is carried out with the assistance of a MPPT for solar system. In recent years, there have been various types of power electronic converters available depending on the application such as (PC power supply, battery charging and Inverter etc.). This manuscript proposes a novel isolated multi-winding inductors (IMWI) converter improved from the conventional SEPIC converter. In this proposed converter, five inductors are design on a single core as a coupling design in order to reduce current ripple and improve converter efficiency and hence reduce the cost and size of the converter which is suitable for regenerative energy systems with unsteady output voltages. It also provides a reliable voltage source for various loads such as battery systems and micro gird, etc. The novel converter is implemented on hardware, and the performance of the proposed DC-DC power converter and traditional SEPIC converter is compared and verified using MATLAB R2021b. The various levels of input voltages are given in order to get constant voltage for battery charging and inverter application. In the new IMWI DC-DC power converter, the duty cycle of the switch has variation. On the other hand, in the traditional SEPIC converter, the duty cycle of power MOSFET varies greatly depending on the relationship between the output and input voltage which deteriorates the converter’s efficiency.

Chapter 1 : INTRODUCTION........................................................................................................ 1
1 Brief introduction ...................................................................................................................... 1
2 Literature Review...................................................................................................................... 2
Chapter 2 : MATHEMATIC MODELLING OF PV MODULE.................................................... 8
1 Ideal Single Diode Model (ISDM) ........................................................................................ 9
2 Improved Two Diode Model (ITDM) ................................................................................. 10
3 Simplified Two-Diode Model ............................................................................................. 12
Chapter 3 : MAXIMUM POWER POINT TRACKING .............................................................. 15
1 Introduction ......................................................................................................................... 15
2 Maximum power point tracking .......................................................................................... 15
3 Hill Climbing Algorithm ..................................................................................................... 20
4 Features of hill climbing algorithm ..................................................................................... 21
Chapter 4 :TRADITIONAL SEPIC CONVERTER AND PROPOSED CONVERTER ............. 23
2 SEPIC Converter Analysis ............................................................................................. 23
3 Proposed IMWI Dc-Dc power converter ................................................................................ 27
1 Topology Derivation ........................................................................................................... 31
v
2 Converter Analysis .............................................................................................................. 32
2.1 Mode 1 .................................................................................................................... 32
2.2 Mode 2 .................................................................................................................... 33
2.3 Mode 3 ................................................................................. 33
Chapter 5 : RESULTS AND DISCUSSION ................................................................................ 37
1 Simulation Results ........................................................ 37
1.1 Condition 1.............................................................................................................. 38
1.2 Condition 2.............................................................................................................. 39
1.3 Condition 3.............................................................................................................. 41
2 Experimental Results .............................................................................................................. 42
2.1 CASE 1: For N=1 ........................................................................................................... 46
2.2 CASE 2: For N=2 ........................................................................................................... 49
2.3 CASE 3: For N=3 ................................................................................................... 52
2.4 CASE 1: N=1 .......................................................................................................... 56
2.5 CASE 2: N=2 .......................................................................................................... 59
2.6 CASE 1: N=2 .......................................................................................................... 62
Chapter 6 : CONCLUSION AND FUTURE WORK................................................................... 65
                                

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