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研究生:黃麒霖
研究生(外文):Chi-Lin Huang
論文名稱:高功率三階層中性點箝位變流器研製
論文名稱(外文):Design and Implementation of a High Power Three-Level Neutral-Point-Clamped Inverter
指導教授:楊宗銘楊宗銘引用關係
指導教授(外文):Chung-Ming Young
口試委員:楊宗銘
口試委員(外文):Chung-Ming Young
口試日期:2016-07-18
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:電機工程系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2016
畢業學年度:104
語文別:中文
論文頁數:90
中文關鍵詞:高功率轉換器三階變流器有限狀態預測電流控制
外文關鍵詞:three-level inverterdiode-clamp inverterinfinite state model predict control
相關次數:
  • 被引用被引用:1
  • 點閱點閱:198
  • 評分評分:
  • 下載下載:48
  • 收藏至我的研究室書目清單書目收藏:1
本論文主旨為研製50千瓦二極體箝位三階變流器。高功率變流器由主電路功率級、開關驅動電路、輔助電源、感測與保護電路及數位信號處理器組成,並以最大連續輸出電流時的熱損耗,設計具強制風冷之散熱系統。三階變流器較傳統二階變流器有較低切換功率損失、較低輸出電壓諧波、較低開關承受耐壓,使三階變流器有較佳性能。在本文中,變流器將採用電流控制模式並應用於轉矩馬達,利用線性電流控制法和有限狀態預測電流控制法,使輸出相電流有效值為0~90A頻寬為0~400赫茲及5秒輸出相電流有效值180A電流過載控制。
兩種控制策略將分別利用數位信號處理器TMS320F28069及TMS320F28335實現。在高功率設計中,需特別注意主電路功率及的配置。採用低電感量的直流匯流排降開關切換時造成的電壓峰值及調整開關驅動電流使功率開關可以操作在適當的開關承受範圍。最後由模擬及實作相互映證系統,系統設計理論正確並有優異的操作性能。系統最高效率在最大連續輸出功率下可以達到98.6%,並藉由兩小時的最大連續輸出功率下,驗證系統穩定性。
This thesis presents the development of a 50-kilowatt three-level diode-clamp inverter. The implementation of this high power inverter includes a main power stage, modified gate-trig circuits, a DSP-based digital controller. Moreover, the thermal analysis of a forced-air-cooling sink is investigated for full-power operation. Multi-level inverters are superior to traditional two-level structures, such as less losses, lower harmonics and voltage stress, resulting in better performance. In this thesis, the inverter is designed to drive a high-power high-torque serve motor with 50-kW rated power by current control method. Thus, two current control strategies, linear current control and infinite state model predict control, are employed to achieve the control goal, in which 400Hz bandwidth and 100% over load capability are required.
The two control strategies are implemented by two DSP controllers, TMS320F28069 and TMS320F28335, respectively. For dealing with the high power requirement, the layout of the main power stage is designed carefully. The inductance-free bus is used to reduce the voltage spike posed on the switches, and the modified gate-trig circuits are used to drive the high-current-rating IGBT devices properly. All these efforts prove the stability of the inverter which can operate at full power for more than two hour, even it is only a prototype. Taking the advantages of the 3-level structure, the inverter provides very high efficiency over the full operation range with the highest 98.6%. Finally, both simulation and experiment results demonstrate that the inverter not only meets the design requirement but also operates with well performance.
摘要I
AbstractII
目錄IV
圖目錄VI
表目錄IX
第一章 緒論1
1.1研究背景與動機1
1.2 系統描述與研究方法2
第二章 三階變流器架構與分析4
2.1 前言4
2.2 三階飛輪電容式變流器4
2.3 三階H橋式變流器6
2.4 三階二極體箝位式變流器 8
2.5 T形主動箝位式變流器9
2.6三階變流器比較11
第三章 三階二極體箝位式變流器分析12
3.1 前言12
3.2 三階二極體箝位式變流器變流器脈寬調變法12
3.2.1 正弦脈波寬度調變12
3.2.2 空間向量調變法14
3.2.3 特定諧波消除調變法21
3.3 中性點電位分析與補償22
3.3.1基於正弦脈寬調變的中性點電位變化量分析23
3.3.2 零相序電壓補償法27
3.3.3 基於空間向量調變之中性點電位變化量與補償28
3.4 系統損耗35
3.4.1 三階二極體箝位式變流器導通損失35
3.4.2 三階二極體箝位式變流器切換損失38
3.4.3 三階二極體箝位式變流器電容損失42
3.5 電流控制策略47
3.5.1 線性電流控制47
3.5.2 模型預測控制48
第四章 硬體架構與軟體規劃57
4.1 前言57
4.2 硬體規劃57
4.3 軟體規劃66
5.1 前言69
5.2 線性電流控制模擬與實作69
5.3 有限狀態電流控制模擬79
6.1 結論85
6.2 未來研究方向85
參考文獻86
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