相移全橋轉換器之數位控制器的研製

Design and Implementation of Digital Controller for Phase-Shift Full-Bridge Converter

蘇盈豪(Ying-Hao Su)

指導教授 ： 賴炎生

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(2009年)

https://doi.org/10.6841/NTUT.2009.00632

摘要

本論文主要研製一具有零電壓切換相移式全橋轉換器之架構，轉換器開關藉由諧振，達到零電壓導通的特性，因此降低了開關上的切換損失，藉此提高轉換器整體效率。
為了設計數位控制器，本文將推導相移式全橋轉換器之小訊號數學模型，並以模擬結果驗證控制器的設計，最後以德州儀器公司之DSP TMS320F2812為控制平台，完成數位控制器設計。
本文所研製之相移式全橋轉換器的詳細規格如下：
額定功率： 500瓦
輸入電壓： 400伏
輸出電壓： 48伏
輸出電流： 10.42安培
切換頻率： 50 kHz
實驗結果證實，本文所設計與製作的相移式全橋轉換器，在滿載時效率可達到90％，而且功率開關元件具有零電壓導通的特性。

關鍵字

相移全橋轉換器 ； 零電壓切換

並列摘要

The objective of this thesis is to design and implement full-bridge phase-shift converter with ZVS-on feature. ZVS-on feature is achieved by resonant circuit and thereby increasing the efficiency.
In order to design the digital controller, the small signal model of the converter is derived and confirmed by simulation results. A digital signal processor, TMS 320F 2812, is used as the controller to realize the designed digital controller.
A full-bridge phase-shift converter has been designed and implemented. The specifications of this converter are as follows: input voltage = 400 V/DC, output voltage = 48 V/DC, output current = 10.42A, switching frequency = 50 kHz and output power = 500 W.
Experimental results show that the maximum efficiency is 90% and ZVS-on can be achieved. These results verify the theoretical analysis, design and implementation.

並列關鍵字

Phase-Shift Full-Bridge Converter ； Zero Voltage Switching

參考文獻

[25] 吳信昌，具有零電壓切換之相移全橋轉換器的研製，碩士論文，國立台北科技大學電機工程系，2008。

[26] 蘇軒毅，具零電壓切換之相移式全橋直流/直流轉換器的研製，碩士論文，國立台北科技大學電機工程系，2008。

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