新型高性能並聯共振式高週波感應加熱器

A Novel High Performance Parallel Resonant High Frequency Induction Heater

王建霖(Chien-Lin Wang)

指導教授 ： 陳宗成

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.2014.00207

摘要

本論文提出一新型高性能並聯共振式高週波感應加熱器，其電路架構由三相交流/直流升降壓式轉換器與單相直流/交流換流器與RLC並聯共振電路所構成。相較於傳統兩級控制共振式感應加熱器，所提之並聯共振式感應加熱器具有單級控制、弦波輸入電流、單位功因及控制簡單等優點。將三相交流/直流升降壓轉換器操作在不連續電流模式下，再將此電感電流轉換為高頻電流源供給RLC並聯共振電路，並產生最大功率。訊號之控制採用Altera MAXR II Micro Kit EPM2210F324C3 與Quartus II 9.0 軟體使轉換器與換流器中功率開關同步切換，使功率控制更為簡單。最後，提出部分實驗結果來驗證所提之感應加熱器之可行性。

關鍵字

高週波感應加熱 ； 並聯共振 ； 三相交流/直流升降壓轉換器 ； 單相直流/交流換流器

並列摘要

In this thesis, a novel high performance parallel resonant high frequency induction heater is proposed. The induction heater consists of three-phase AC/DC buck-boost converter, single-phase DC/AC inverter and RLC parallel resonant circuit. Compare to the traditional two-stage resonant induction heater, the proposed induction heater has several advantages such as one-stage structure, unity power factor, pure sinusoidal input current and simple control circuit etc.. The three-phase AC/DC buck-boost converter is operated at discontinuous current mode. In order to produce maximum power output, three inductor currents are converted to single phase high frequency current source to supply RLC parallel resonant circuit.
Make the switches of converter and inverter synchronous switching with Altera MAXR II Micro Kit EPM2210F324C3 and Quartus II 9.0 software for controlling signal. Finally, some experimental results are presented to verify the feasibility of the proposed induction heater.

並列關鍵字

high frequency induction heating ； parallel resonant ； three- phase AC/DC buck-boost converter ； single-phase DC/AC inverter

參考文獻

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