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題 名 | 單閘調光電子式安定器之最佳化研製=Optimal Design and Fabrication of a Single-Switch Dimmable Electronic Ballast |
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作 者 | 吳清順; 吳瑞南; | 書刊名 | 台電工程月刊 |
卷 期 | 606 1999.02[民88.02] |
頁 次 | 頁43-65 |
分類號 | 448.42 |
關鍵詞 | 電子式安定器; 電力品質; 功率因數; 總諧波失真; 峰值因數; Electronic ballast; Power quality; Power factor; THD; Crest factor; |
語 文 | 中文(Chinese) |
中文摘要 | 低製作成本及優良特性兼具之電子式安式器,乃本文研究的目的。為期製作成本 低廉,本文將升壓型轉換器與串聯諧振換流器整合為一級,且共用一個切換元件,以構成單 闡之電路加構;此外,中調整導通週期比,本電路尚具有調光之功能。本文先使用直覺法進 行電路之設計,但為使其能發揮最大效能,將各次調光之效率、功率因數、電流峰值因數及 總諧波失真之平均值,合併為目標函數,以進行最佳化之搜尋;經由電腦模擬,該最佳化搜 尋之結果,在效率上,比直覺法所得約提升 26%,可見其確具可行性。最後,經實際製作與 量測,本電路之效率為 81.5%、功率因數為 0.968、總諧波失真為 12.3%、燈管電流峰值因 數為 1.482,且調光範圍為 18 ∼ 38 瓦間。以其特性略優於現有產品,但成本則較單級電 路節省約 20%,可見本電路確具有實用潛力。 |
英文摘要 | The objective of this research is to develop electronic ballast with high electrical performance and low production cost. In order to reduce the production cost, the boost converter and series-resonant parallel-loaded inverter are combined into a single stage circuit, which utilized only one thyristor switch. By adjusting the duty ratio, the circuit is also dimmable. At first, the circuit was designed by an intuitive approach. Then, an optimization algorithm, using efficiency, power factor, crest factor and total harmonic distortion (THD) of nine selected duty ratios as objective function, was adopted to improve the electrical performance of ballast. Computer simulation showed that the optimization process had an efficiency about 26% higher than that of intuitive approach. Finally, the circuit was fabricated and tested. The measured results showed 81.5% for efficiency, 0.968 for power factor, 12.3% for THD and 1.482 for crest factor. The range of dimmable power was between 18W and 38W. The practicability of the proposed electronic ballast was then well demonstrated in terms of higher performance than the existing products as well as about 20% lower production cost than that of a single stage circuit. |
本系統中英文摘要資訊取自各篇刊載內容。