本文旨在探討並聯諧振在電流源變頻器上的應用與實作。藉由擾動觀察法追蹤在諧振頻率下，獲得一個可調整的大電流源提供電力設備試驗所需之電流源，此電流源可視為一個電感性負載，所需之能量將由一可變直流鏈變頻器電路提供。實作將以數位信號處理器TMS320F2812為基礎，設計一個使用擾動觀察法的數位控制器，使得電路輸出之頻率及電流大小，均由此控制器調節。上述之控制過程皆經由模擬及實驗結果，驗證所提之方法確實具有可行性，最後製作100安培有效值輸出的大電流源實驗雛形。

In this thesis, we discuss the application and implementation of the parallel resonant on the current source inverter. Follow the perturbation and observation method to automatically track on the resonant frequency to obtain an adjustable high-current source for power equipments test requiring current source power supply. In addition, we regard the current source as inductive load. The energy required for inductive load is converted by a variable dc-link inverter. The Implementation of the high-current power supply is base on digital signal processor TMS320F2812. In the digital control environment, we employ the perturbation and observation method of a digital controller to make output frequency and current amplitude circuit be regulative. And the effectiveness of the designed controllers is verified by some simulated and experimental results. Finally, we implement a prototype high-current source inverter with its maximally adjustable effective value 100 ampere of the output current.

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