可調角度ds-qs軸轉換之三相交流/直流轉換器

A ds-qs Axis Transformation with Adjustable Angle for Three-phase AC/DC Converter

林季楷(Chi-Kai Lin)

指導教授 ： 陳政裕

國立虎尾科技大學/電機資訊學院/電機工程研究所/碩士(2014年)

https://doi.org/10.6827/NFU.2014.00208

摘要

本論文提出可調角度ds-qs軸轉換之三相交流/直流轉換器，該轉換器採用可調角度ds-qs軸轉換方法，使電壓空間向量與開關切換表能更加符合，避免開關有多餘之切換次數。藉由磁滯電流控制方法控制電感電流、開關切換模式以及功率因數修正。其中切換表之規劃為利用電壓空間向量建立而成，使開關跟隨切換表所需之電壓空間向量做切換，且有效地管理開關切換次數，以降低開關切換損失，進一步地提高整體系統效率。使用ALTERA公司開發的MAX II Micro Kit之CPLD並搭配軟體Quartus II建立其切換表。最後，提出實驗結果以驗證本論文所提之控制策略的可行性。

關鍵字

三相交流/直流轉換器 ； 功率因數 ； ds-qs軸轉換 ； 磁滯控制 ； 電壓空間向量 ； 複雜可程式邏輯裝置

並列摘要

In this thesis, the application of an adjustable angle ds-qs axis transformation for three-phase AC/DC converter is proposed. The proposed converter adopts the method of an adjustable angle ds-qs axis transformation, it makes voltage space vector correspond the switching table. The method avoids more number of switching in the switch. Using the way of hysteresis current controls the inductor current, the mode of switch, and power factor correction. The switching table is programmed by voltage space vector, it can manage switching numbers in the switch. Therefore, the proposed converter can reduce switching loss and increase system efficiency. Both CPLD and Quartus II software are employed to build switching table. Finally, some experimental results are presented to verify the feasibility of the proposed control strategy.

並列關鍵字

three-phase AC/DC converter ； PF ； ds-qs axis transformation ； hysteresis controller ； voltage space vector ； CPLD

參考文獻

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