本論文探討基於降低開關元件數量的不同架構新型多階變流器，與傳統的多階變流器架構相較，當達到特定的輸出電壓位階時，新型的多階變流器所需之功率元件數目較少，此可降低裝置空間及設備成本。文中探討四種新型變流器，詳細敘述其電路架構及切換模式，並且比較其差異性，其後利用MATLAB/Simulink模擬軟體針對四種新型變流器進行模擬與分析，探討輸出電壓波形、諧波頻譜及開關耐壓，最後以ALTERA公司的Quartus II軟體設計開關激發信號，隨後燒錄至DE2-115 FPGA開發板中，再以MOSFET組成之電路進行實作驗證，驗證模擬與實際測量之結果。

This thesis investigates different topologies of single phase multilevel inverters based on reduced number of switch count. In comparing with other conventional multilevel inverters, the benefit of use small number of devices to obtain the same voltage level is validated. New multilevel inverters can also reduce the installation space and cost. Among the new multilevel inverters, four new inverters are discussed, and their circuit topology and switching modes are described in detail, and then compare the differences. Simulation results from MATLAB/Simulink are used to validate the theoretical analysis. Finally, the ALTERA’s software Quartus II is used to design the switch excitation signals, then the code is downloaded to a FPGA board DE2-115. The MOSFET-based new multilevel inverters are implemented and experimental results verify the feasibility.

目錄
中文摘要 i
英文摘要 ii
致謝 iii
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 相關文獻回顧 2
1.3 論文架構概述 3
第二章 單相多階變流器 4
2.1 傳統變流器 5
2.2 基於降低開關元件數量之變流器 8
2.2.1 新型變流器1 8
2.2.2 新型變流器2 12
2.2.3 新型變流器3 16
2.2.4 新型變流器4 22
2.3 不同架構之比較 27
第三章 基於降低開關元件數量變流器之調變技術 30
3.1 正弦脈波寬度調變法 31
3.2 多載波移相脈寬調變法 32
3.3 多載波移階脈寬調變法 33
第四章 以MATLAB模擬單相多階變流器 36
4.1 多載波移相脈寬調變法之模擬分析與討論 36
4.2 多載波移階脈寬調變法之模擬分析與討論 41
4.2.1 APOD(交替相位相反配置)調變法 41
4.2.2 POD(相位相反配置)調變法 45
4.2.3 IPD(同相配置)調變法 49
4.3 不同變流器架構之模擬比較 55
4.4 非對稱的單相多階變流器 64
4.4.1 非對稱型之新型變流器1 64
4.4.2 非對稱型之新型變流器2 69
第五章 以FPGA實作單相多階變流器之多載波脈寬調變法 75
5.1 多載波移階脈寬調變法之設計 76
5.2 單相多階變流器之實作結果 80
5.2.1 APOD調變法 81
5.2.2 POD調變法 83
5.2.3 IPD調變法 85
5.3 不同變流器架構之實作比較 87
5.3.1 新型變流器1之耐壓 87
5.3.2 新型變流器2之耐壓 90
5.4 非對稱型單相多階變流器之實作結果 93
第六章 結論與未來展望 98
6.1 結論 98
6.2 未來展望 100
參考文獻 101

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