本研究針對直流電力系統設計一套性能檢測儀器。直流電力系統內的電池,充電器及直流電壓轉換器的設計規格乃由選用的系統元件規格推算而得,然而實際系統是否符合設計規格仍需要經由測試驗證,為協助衛星酬載開發執行規格快速驗證,本研究設計電力系統性能檢測儀器,以利執行系統負載測試,直流電壓轉換器性能測試,電池最大電量測試,以及電池充電器效率測試,以幫助直流電力系統開發人員驗證其設計。 為驗證本儀器之功能,本研究以此檢測儀器對過去本實驗室開發之探空八號回收艙電源模組與罐頭衛星的無線電通訊模組進行測試,分析其電力負載特性。另外,也對本實驗室過去實作的降壓型直流電壓轉換器以及SEPIC型直流電壓轉換器進行性能驗證。 The purpose of this paper is to develop a measurement platform for DC electric power systems. This paper designed four testing processes which include a test for measuring system loading characteristic, a test for DC to DC converting efficiency, a test for battery charging efficiency and a test for measuring the max capacity of battery to support developers examining their system. This paper designed and implemented the measurement platform and used it to test the RF module of CAN-SAT and the power module of SRV8 recovery system, and to examine the design of a step down converter and a SEPIC converter.