為了節省能源和降低電源供應器在燒機測試上的成本，本文提出一具能量回收之單相交流電子負載。前級交流/直流轉換器利用電流控制器使輸入電流適當地追隨命令電流，並可模擬負載特性為電阻性、電感性、電容性及非線性負載；後級直流/交流變流器利用電流內迴路控制使輸出電流快速且正確的追隨命令電流，並以單位功因、低諧波失真的弦波電流回送至市電網路，且為了使整體系統的功率平衡利用電壓外迴路控制使直流匯流排維持穩定。除此之外，待測電源之系統頻率可與市電網路頻率不同，使系統的運用更加靈活。最後，建立一套1kVA之系統雛型，由實驗結果驗證具能量回收之單相交流電子負載之可行性。

In order to save energy and reducing costs of the burn-in test of the power supplies, a single-phase ac electronic load with energy recycling is proposed. The input current of the AC/DC converter is controlled through the current controller to track the reference current that can be simulated as the characteristic of the RLC load and nonlinear load. The output current of the DC/AC inverter is controlled by the inner current controller to feedback energy to the grid network with low harmonic distortion and unity power factor sinusoidal waveform. For balancing the energy of the proposed tested system, the dc voltage of the DC/AC inverter is adopted an outer dc voltage controller to control and stabilize the dc bus voltage between the AC/DC converter and DC/AC inverter. The operated frequency of tested ac power sources can be different with grid network, therefore, the proposed tested system is more flexible to use in the burn-in test. Finally, a 1kVA experimental prototype is built to demonstrate the performance of the proposed technique.

目次
摘要................ I
ABSTRACT II
目次................. III
表目錄 VI
圖目錄 VII
第一章 緒論 1
1.1 前言 1
1.2 論文大綱 8
第二章 單相變流器介紹 9
2.1 簡介 9
2.2 變流器之控制架構 10
第三章 單相交流電子負載理論分析 16
3.1 單相交流電子負載理論分析 16
3.1.1 前級交流/直流轉換器 16
3.1.2 後級直流/交流變流器 17
3.1.3 中間級直流匯流排 18
3.2 能量回收之單相交流電子負載理論分析 19
3.2.1 模擬負載特性部分 20
3.2.1.1 電壓控制法 20
3.2.1.2 電流控制法 21
3.2.2 能量回收部份部分 23
3.2.2.1 電壓控制法 23
3.2.2.2 電流控制法 24
第四章 單相交流電子負載系統架構 27
4.1 控制策略一 27
4.2 控制策略二 28
4.3 單相變流器分析 29
4.4 單相交流電子負載控制器設計 31
4.4.1 能量回收部份控制器設計 32
4.4.2 模擬負載特性部分控制器設計 37
第五章 系統硬體規劃與實驗結果 43
5.1 功率級電路 43
5.2 閘極驅動電路 44
5.3 周邊控制電路 45
5.3.1 電壓迴授電路 45
5.3.2 電流迴授電路 46
5.3.3 保護電路 47
5.4 實驗簡介 48
5.5 實驗結果 48
5.5.1 能量回收部分單獨操作 48
5.5.2 具能量回收之單相交流電子負載操作模擬電阻性負載 50
5.5.3 具能量回收之單相交流電子負載操作模擬電感性負載 54
5.5.3.1 電感性負載功率因數0.8 54
5.5.3.2 電感性負載功率因數0.6 57
5.5.3.3 電感性負載功率因數0.4 60
5.5.3.4 電感性負載功率因數0.11 63
5.5.4 具能量回收之單相交流電子負載操作模擬電容性負載 66
5.5.4.1 電容性負載功率因數0.8 66
5.5.4.2 電容性負載功率因數0.6 69
5.5.4.3 電容性負載功率因數0.4 72
5.5.4.4 電容性負載功率因數0.168 75
5.5.5 具能量回收之單相交流電子負載操作模擬非線性負載 78
5.6 討論 80
第六章 結論與未來展望 82
6.1 結論 82
6.2 未來展望 83
參考文獻 84

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