以雙模組並聯之直流-交流轉換器實現電流放大器

Implementation of a Current Amplifier using Paralleled Dual-Module Current-Controlled DC/AC Inverter

劉昌遠(Chang-Yuan Liu)

指導教授 ： 黃明熙

國立臺北科技大學/電資學院/電力電子產業研發碩士專班/碩士(2008年)

https://doi.org/10.6841/NTUT.2008.00308

摘要

本論文之主要目的在於分析與實現雙模組並聯之電流放大器。電路架構為兩只單相全橋直流-交流轉換器，利用並聯模組之交錯切換來提升負載端的載波頻率，如此除可提升電流調控之動態響應，尚可有效降低輸出級濾波電路之體積及可減少輸出電流漣波。為抑制模組之分流不均於個別模組加入獨立電流控制來確保穩態下各模組輸出電流之平均分配。
系統是以數位信號處理器(TI DSP TMS320F2812)作為控制核心，來實現雙模組直流-交流轉換器之並聯。該系統可有效減少硬體電路之使用來增加系統穩定度，並可藉由韌體的更新，提高系統運用之彈性。所提之控制策略以組合語言撰寫以縮短軟體執行時間。最後，於所研製之系統驗證雙模組並聯電流放大器之有效性。

關鍵字

模組並聯 ； 交錯式控制 ； 電流放大器

並列摘要

This thesis is concerned with the analysis and implementation of a paralleled dual-module current amplifier. A current amplifier with a dual modules connected in parallel is presented based on the interleave control, so as to increase the carrier frequency at output and hence to improve the dynamic response and decrease output current ripple, therefore the size of output filter will be reduced. Also, a current controller is added in each module to make the current flowing through modules evenly distributed in steady state.
To facilitate the studies performed in this thesis, a DSP-based controller is constructed using a DSP TMS320F2812 manufactured by Texas Instruments. There are several benefits using DSP-based to implement the dual-module parallel current amplifier, such as to simplify hardware circuits, to generate flexible functions and to adapt changing environmental conditions, etc. For saving the execution time, all the routines are coded by assembly language. Finally, some experimental results have confirmed the validity of the proposed methods in paralleled dual-module current amplifier.

並列關鍵字

paralleled multi-module ； interleaved control ； current amplifier

參考文獻

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