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標題: | 兩相交錯式升壓型轉換器之輸出脈衝式電流抑制 Output Pulsating Current Reduction for Two-Phase Interleaved Boost Converters |
作者: | Wan-Ju Lin 林宛儒 |
指導教授: | 陳耀銘(Yaow-Ming Chen) |
關鍵字: | 交錯式太陽能電能轉換器,升壓型轉換器,二極體電流,脈衝式電流, interleaved solar energy converter,boost converter,diode current,pulsating current, |
出版年 : | 2019 |
學位: | 碩士 |
摘要: | 本論文提出了一種降低交錯式升壓型轉換器脈衝式電流之策略。主要目的在於解決太陽能板因環境不同,致使輸出功率不同,使得交錯式太陽能升壓型轉換器之輸出能在不同環境因素情況下仍有最低之脈衝式電流。由於當太陽能板日照條件不同時,會有不同的輸出功率,各相升壓型轉換器會因為相位移的變化,產生不同的脈衝式電流,導致後級直流輸出端有不同峰值變動的脈衝式電流,進而產生輸出電壓漣波。
為了降低輸出端的漣波電壓,本論文提出一種直接使輸出二極體電流漣波峰值降至最低的控制策略。在此控制策略中,根據各相輸入端不同的輸入電壓,改變不同相位之間的相位移角度,找出移動的最佳相位移角度,使得最後合成之輸出電流漣波峰值達到最低,而且不需要外加任何元件或是電路即可實現此控制策略。本論文將會詳細介紹並呈現此控制策略之操作原理與相關數學推導,並且藉由電腦模擬與實驗結果來驗證此策略之正確性及可行性。 This thesis proposes a method to reduce the pulsating output current of interleaved boost converters. The objective of the proposed method is to achieve the lowest peak pulsating output current of the interleaved boost converters for solar power applications. Since the solar panel has different pulsating output power with respect to various sunshine condition, the total output pulsating current at the DC output terminal relays on the phase shift between these interleaved boost converters. Furthermore, the pulsating output current will produce the voltage ripple at the DC output terminal. In order to reduce the voltage ripple at the output, this paper proposes a control method that minimizes the peak value of the output current ripple. In the proposed control method, based on the different input voltage values, the phase shift angle between two interleaved booster converters will be determined according to the derived formula to achieve the minimum peak value of the output pulsating current. In addition, the proposed method can be implemented without additional components or circuits. This thesis will introduce and present the operating principle and related mathematical derivation of the proposed method. The feasibility of the proposed method will be verified by computer simulations and experimental results. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/74979 |
DOI: | 10.6342/NTU201903173 |
全文授權: | 有償授權 |
顯示於系所單位: | 電機工程學系 |
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