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| ???org.dspace.app.webui.jsptag.ItemTag.dcfield??? | Value | Language |
|---|---|---|
| dc.contributor.advisor | 陳耀銘 | |
| dc.contributor.author | Cheng-Wei Chen | en |
| dc.contributor.author | 陳承威 | zh_TW |
| dc.date.accessioned | 2021-06-15T16:15:07Z | - |
| dc.date.available | 2017-08-25 | |
| dc.date.copyright | 2015-08-25 | |
| dc.date.issued | 2015 | |
| dc.date.submitted | 2015-08-17 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/52449 | - |
| dc.description.abstract | 本論文提出一個自主串聯型微轉換器(Series-Connected Micro-Converter, SCMC)之太陽能發電系統。這是一種最有希望同時滿足低系統成本與高效率的分散式最大功率追(Distributed Maximum Power Point Tracking, DMPPT)太陽能系統。此系統屬於兩級式電路架構，由一串列的微轉換器和一單相市電併聯換流器所組成。系統前級採用有三種操作模式和平滑轉換的四開關升降壓型轉換器(Four-Switch Buck-Boost Converter, FSBBC)來實現最大功率追蹤的功能。系統後級的單相市電併聯換流器則利用雙極性正弦脈波寬度調變搭配直流鏈電壓控制來達成輸出電流與輸入電壓控制。此外，本論文針對此系統提出一個可行之自主控制策略(Autonomous Control Strategy, AUC Strategy)。結合此控制策略，每一組FSBBC與其所連接之太陽能可以形成一個可獨立操作的自主式太陽能模組(Autonomous PV Module, APVM)。為了有效分析APVM之動態表現與穩定度，本論文接著推導及分析其不包含和包含模組互動的兩種小訊號模型。此外，根據所建立的模型提出了控制器設計準則，並分析了APVM的穩定度。最後，以模擬與實驗結果來驗證本論文所提出的小訊號模型準確度和自主串聯型微轉換器太陽能發電系統的特性與功能。 | zh_TW |
| dc.description.abstract | An autonomous series-connected micro-converter (SCMC) photovoltaic (PV) system is proposed in this dissertation. It is the most promising candidate to achieve both low system cost and high efficiency among the distributed maximum power point tracking (DMPPT) PV systems. The proposed SCMC PV system has a two-stage circuit topology, which is composed of a set of SCMCs and a single-phase grid-tied inverter. The four-switch buck-boost converter (FSBBC) with three operation modes and a smooth transition method is adopted to realize the maximum power point tracking (MPPT) function for each PV panel. The single-phase grid-tied inverter with bipolar sinusoidal pulse width modulation (SPWM) control and the AC line current regulation is utilized to control the inverter output current and string voltage. Besides, the autonomous control (AUC) strategy are well-developed for the success of the non-communicating system operation. By adopting the AUC strategy to a PV module which is composed of a PV panel and an FSBBC, a self-contained autonomous PV module (APVM) can be formed. The small-signal AC models, with and without the module interaction considered, are derived to analyze the dynamic behavior and the stability of the APVM. Moreover, the design of controller based on the developed small-signal AC model and the stability analysis of the APVM are presented. Finally, computer simulations and experimental results are presented to verify the accuracy of the small-signal AC model and the performance of the proposed autonomous SCMC PV system. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T16:15:07Z (GMT). No. of bitstreams: 1 ntu-104-F98921020-1.pdf: 12845298 bytes, checksum: 8cfcd45b792f94e0776411b7b4193eda (MD5) Previous issue date: 2015 | en |
| dc.description.tableofcontents | CONTENTS
口試委員會審定書 i 誌謝 ii 中文摘要 iii ABSTRACT iv CONTENTS v LIST OF FIGURES viii LIST OF TABLES xi Chapter 1 Introduction 1 1.1 Background 1 1.2 Motivation 2 1.3 Dissertation Outline 4 Chapter 2 Review of Distributed Maximum Power Point Tracking PV Systems 6 2.1 Micro-Inverters 7 2.2 Partial-Power Conversion micro-converters 9 2.2.1 Series Connection 9 2.2.2 Parallel Connection 10 2.3 Full-Power Conversion micro-converters 11 2.3.1 Series Connection 12 2.3.2 Parallel Connection 13 2.4 Summary 13 Chapter 3 The Series-Connected Micro-Converter PV System 15 3.1 PV panel 15 3.1.1 Maximum Power Point Tracking 17 3.1.2 Electrical Model 18 3.1.3 Linearization 19 3.2 Power Converter 20 3.2.1 Choice of the Converter Topology 20 3.2.2 Operating Principle 22 3.2.3 Smooth Transition Strategy 22 3.2.4 Design Criteria 24 3.3 Inverter 26 3.3.1 Introduction 26 3.3.2 Current Control Strategy 27 3.3.3 AC Line Current Regulation Strategy 30 Chapter 4 Proposed Autonomous SCMC PV System 34 4.1 Control Challenge 34 4.2 The Autonomous Control Strategy 36 4.3 The Small-Signal AC Model 42 4.3.1 The Autonomous PV Module 42 4.3.2 Plant model 45 4.4 Controller design 48 Chapter 5 Computer Simulation and Experimental Verifications 52 5.1 Circuit Diagram and Specification 52 5.1.1 The FSBBC 52 5.1.2 The Full Bridge Inverter 54 5.2 The Autonomous PV module 55 5.2.1 Validity of the Small-Signal AC Model 56 5.2.2 Verification of the Smooth Transition 61 5.2.3 Suppression of the Double Line Frequency Voltage 63 5.2.4 Transient Response 65 5.3 The Autonomous SCMC PV system 68 5.3.1 Validity of the Small-Signal AC Model 69 5.3.2 Verification of the Autonomous Control Strategy 70 5.3.3 Efficiency Measurement 76 Chapter 6 Conclusion and Suggested Future Research 78 6.1 Summary and Major Contributions 78 6.2 Suggestions for Future Research 79 REFERENCES 80 Vita 86 | |
| dc.language.iso | en | |
| dc.subject | 四開關升降壓型轉換器 | zh_TW |
| dc.subject | 市電併聯換流器 | zh_TW |
| dc.subject | 自主控制策略 | zh_TW |
| dc.subject | 自主式太陽能模組 | zh_TW |
| dc.subject | 平滑轉換 | zh_TW |
| dc.subject | 分散式最大功率追蹤 | zh_TW |
| dc.subject | APVM | en |
| dc.subject | FSBBC | en |
| dc.subject | smooth transition | en |
| dc.subject | grid-tied inverter | en |
| dc.subject | autonomous control strategy | en |
| dc.subject | DMPPT | en |
| dc.title | 應用於太陽能系統之自主串聯型微轉換器 | zh_TW |
| dc.title | Autonomous Series-Connected Micro-Converters for PV Systems | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 103-2 | |
| dc.description.degree | 博士 | |
| dc.contributor.oralexamcommittee | 陳德玉,陳建富,潘晴財,賴炎生,羅有綱 | |
| dc.subject.keyword | 分散式最大功率追蹤,四開關升降壓型轉換器,平滑轉換,市電併聯換流器,自主控制策略,自主式太陽能模組, | zh_TW |
| dc.subject.keyword | DMPPT,FSBBC,smooth transition,grid-tied inverter,autonomous control strategy,APVM, | en |
| dc.relation.page | 87 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2015-08-18 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電機工程學研究所 | zh_TW |
| Appears in Collections: | 電機工程學系 | |
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| File | Size | Format | |
|---|---|---|---|
| ntu-104-1.pdf Restricted Access | 12.54 MB | Adobe PDF |
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