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研究生:劉育伶
研究生(外文):Yu-Lin Liu
論文名稱:非浮接開關之零電流零電壓轉移柔切式升壓型電力轉換器之分析研製及控制器設計
論文名稱(外文):Analysis and Synthesis for a Novel Zero-Current-Zero-Voltage-Transition Soft-Switching Boost Power Converter with Non-Floating Switches
指導教授:林鐘烲
指導教授(外文):Jong-Lick Lin
學位類別:碩士
校院名稱:國立成功大學
系所名稱:工程科學系碩博士班
學門:工程學門
學類:綜合工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:136
中文關鍵詞:零電壓零電流轉移柔切式升壓型電力轉換器小訊號模式控制器設計
外文關鍵詞:small-signal modelZCZVT soft-switching boost convertercontroller design
相關次數:
  • 被引用被引用:48
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本論文乃設計非浮接開關之零電流零電壓轉移(Zero-Current-Zero-Voltage-Transition)柔切式升壓型電力轉換器,並推導出其小訊號數學模式,利用電路實作及IsSpice模擬以驗證其正確性,並設計使閉迴路系統具有穩壓功能的控制器,使輸出電壓不受線電壓變動及負載變動的影響。
ZCZVT升壓型轉換器係結合了ZVT與ZCT的優點,輔助開關在一個切換週期內切換至on兩次,產生兩次瞬態共振,使電路元件達到零電壓及零電流切換(ZVS/ZCS)的要求,解決了傳統PWM電力轉換器之高切換損失及共振式電力轉換器之高電壓/大電流的傳導損失及變頻控制等缺點,提昇了切換效率。本文中所設計之非浮接開關之ZCZVT柔切式升壓型電力轉換器,其主開關與輔助開關皆為非浮接式,因此,改善了實作上的困難,而電路所含的元件較少,更可降低成本。
本文利用雙時間尺度平均化法(AM-TTS),推導出ZCZVT升壓型電力轉換器之小訊號數學模式,以研究其動態行為,並量測電子電路實作之轉移函數以驗證數學模式之正確性。ZCZVT升壓型電力轉換器的阻尼比大於1,比傳統PWM電力轉換器有較好的動態響應。為了達到輸出穩壓的目的,吾人根據此數學模式,分別設計古典控制器與修正型積分可變結構(MIVSC)控制器。經由模擬與實作結果相互比較可知,所設計之MIVSC控制器,在負載變化或線電壓變動下均有較佳之穩壓效果。
In this thesis, a novel non-floating switches, zero-current-zero-voltage-transition (ZCZVT) soft-switching boost power converter is designed. The ac small signal mathematical mode for the ZCZVT boost converter is then derived. The accuracy of theoretical results is verified by experiment and simulation of IsSpice. In addition, two controllers are designed to achieve output voltage regulation. They are used to eliminate the effect of the variations of line voltage and load on the output voltage.
The ZCZVT soft-switching converter exhibits the advantages of both ZVT and ZCT converters. To achieve both zero voltage and zero current switching (ZVS and ZCS), the auxiliary switch of the ZCZVT converter turns on twice and two resonances occur during one switching period. This converter overcomes the existing problems of high switching losses of the conventional PWM converters and the conduction losses due to high voltage and current stresses. As a result, both of the main switch and the auxiliary switch in ZCZVT soft-switching converters are non-floating so that the driving circuit is easier to be designed. Moreover, fewer components in the converter also reduce the cost efficiently.
In this thesis, the two-time-scale averaging method (AM-TTS) is used to derive the small signal mathematical model for a ZCZVT soft-switching converter. Based on this model, the system dynamic behaviors can be investigated. Then the theoretical results are experimentally verified. It is interesting to note that the damping ratio of the ZCZVT converter is greater than one so that the dynamic response of the ZCZVT converter is better than the traditional PWM converter. According to the small signal mathematical model a classical controller and a modified integral variable structure controller (MIVSC) are designed to achieve output voltage regulation. The simulation results and experimental responses show that the MIVSC controller has better regulation capacity under the variations of load and line voltage variations than classical controller.
中文摘要I
英文摘要II
目錄III
圖表目錄V
第一章 緒論 1-1
1-1 研究背景 1-1
1-2 電路拓樸的設計1-6
1-3 數學模式分析與控制器研製1-6
1-3 本文結構1-7
第二章 柔切技術的發展過程簡介2-1
2-1 切換式電力轉換器2-1
2-2 開關與二極體的應用2-3
2-3 柔切技術的演進 2-6
2-3-1 半共振式電力轉換器(ZCS/ZVS-QRC)2-6
2-3-2 柔性切換PWM電力轉換器(ZCS/ZVS PWM)2-14
2-3-3 零電流、零電壓轉移轉換器(ZCT、ZVT)2-18
2-3-4 零電流零電壓轉移電力轉換器(ZCZVT)2-22
2-3-5 其他形式轉換器2-25
第三章 非浮接開關之零電流零電壓轉移柔切式升壓型電力轉換器之設計理念 3-1
第四章 非浮接開關之零電流零電壓轉移柔切式升壓型電力轉換器之動作原理與模式分析 4-1
4-1 零電流零電壓柔切式升壓型轉換器之動作原理 4-1
4-2 動作模式簡化分析4-18
附錄4-1:轉換器元件在各階段之簡化解(1) 4A-1
附錄4-2:轉換器元件在各階段之簡化解(2) 4A-2
附錄4-3:轉換器元件切換狀態 4A-3
第五章驅動器設計與轉換器之實現5-1
5-1 轉換器之元件規格設計5-1
5-2 轉換器驅動電路設計 5-5
5-3 IsSpice之模擬驗證5-13
第六章 非浮接開關之零電流零電壓轉移柔切式升壓型轉換器數學模式之推導6-1
6-1 不連續系統雙時間尺度平均化法6-1
6-2 利用平均化法推導轉換器之數學模式 6-3
6-3 脈波寬度調變器(PWM)的交流等效增益6-8
6-4 轉換器數學模式之量測6-9
6-4 ZCZVT升壓型轉換器與傳統PWM升壓型轉換器之數學模式比較 6-10
附錄6-1 求 之移動平均函數 6A-1
附錄6-2求 之移動平均函數 6A-3
附錄6-3 傳統PWM Boost Converter之數學模式6A-4
第七章 修正型積分可變結構控制理論與控制器設計7-1
7-1 傳統積分可變結構控制理論7-1
7-2 修正型積分可變結構控制理論 7-2
7-3 古典控制器之設計與製作 7-7
7-4 修正型積分可變結構控制器(MIVSC)設計與製作7-10
7-5 控制器實作結果分析比較 7-11
第八章 結論與未來展望8-1
8-1 結論 8-1
8-2未來展望8-2
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