燃料電池複合機車用之具有交錯控制直流-直流轉換器研製

Implementation of an Interleaved Phase-shift Controlled DC-DC Converter for Fuel-cells Hybrid Scooter

許宏遠(Hung-Yuan Hsu)

指導教授 ： 黃明熙

國立臺北科技大學/電資學院/電機工程系所/碩士(2008年)

摘要

本篇論文採用具有零電壓切換之全橋相移轉換器作為基本架構，為提高輸出容量與隔離用變壓器輸出有限功率之限制，因此使用雙輸出功率模組於輸出側並聯。所提之控制策略是以電壓迴路及個別輸出模組加入電流迴路來達到定電壓輸出與獨立輸出均勻分流之目的。另外，於兩組全橋之驅動訊號間採用相移控制以降低輸出電壓漣波。最後亦探討控制迴路中加入燃料電池之定功率輸出控制。
為實現所提之複雜控制策略，使用一只數位訊號處理器配合週邊電路進行數位功率控制，並以組合語言撰寫程式以縮短軟體執行時間以提高切換頻率，最後經由實際量測來驗證所提之控制策略。

關鍵字

全橋相移轉換器 ； 交錯式 ； 並聯功率模組 ； 數位訊號處理器

並列摘要

This thesis presents a novel dual-module paralleled DC-DC converter constructed by two single phase-shift full-bridge converters. Due to the high power requirement and the limited transformer capacity, a paralleled power stage is proposed to achieve the high power output. The controller consists of a voltage loop and independent current loops for each power stage to well regulate the output voltage and also let the load current be equally shared in each individual power stage. The paralleled power stages are controlled by interleaving the driving signals between power modules to further reduce the output current ripple. At last, controller with constant power control for full-cell battery is discussed.
To implement the control strategy, a DSP and peripheral circuits are used to control the power stages. In order to realize the described complex control algorithms, assembly language is used to shorten the processing time. The control strategy is verified by the experimental results.

並列關鍵字

Phase-shift Full Bridge Converter ； Paralleled power modules ； Current Sharing:Digital Signal Processor

參考文獻

[23] 林建億，以數位訊號處理器實現具有相移與零電壓切換之全橋轉換器，國立台北科技大學電機工程系碩士學位論文，民國96年一月。

[24] 林玉軒，以相移全橋架構研製雙模組併聯之直流轉換器，國立台北科技大學電機工程系碩士學位論文，民國96年十一月。

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