本文旨在研製試驗用特定諧波規劃電流源產生器，而此電流源產生器所輸出的電流，主要應用於具電子式過電流保護電路功能的斷路器設備之測試。為此，在分析上將斷路器的阻抗特性可近似為電感性負載。利用PWM的規劃求得角度作為開關的動作命令，搭配濾波器來提升特定諧波分量與消除其它諧波，藉以輸出特定諧波電流提供給斷路器作測試用。最後，本文所提出之系統架構，已由MATLAB/Simulink建立其架構並模擬分析，實作則使用數位訊號處理器TMS320LF2407A作為系統控制器，以提供開關觸發訊號並處理回授訊號，由模擬與實作之結果驗證本文提出之系統架構確實具有可行性。

The purpose of this thesis is to develop a programmable high AC current source for testing, and this current source’s output current is applied to circuit-breakers providing over-current protection by electronic means. For this, being analyzing the impedance characteristic of circuit-breaker is analytically similar to an inductance. The angle that was solved by PWM programming is switch’s command, then collated the filter to promote selective harmonic and eliminate others. Output the selective harmonic current to supply the circuit-breaker for testing. Finally, the proposed system of this thesis has been established and simulated by MATLAB/Simulink. A digital signal processor, TMS320LF2407A, is used to implement the controller of system. Both the simulation and experimental results are obtained to illustrate the validity of the proposed system.

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