The Burn - in Test of ThrePhase UPS by Energy Feedback Method
نویسندگان
چکیده
I n the burn-in test of three-phase on-line unintermptible power supply(UPS) system, R. L. C. is usually used as a load in conventional method. For saving energy and decreasing the test cost of UPS, the energy feedback method is proposed to apply the test o f the on-line UPS. In this method, the utility system is used instead of a load. A voltage regulator is used in parallel operation to turn back the energy, which was dissipated in conventioiml method, to the utility system. The values of real power a>nd reactive power in the output of UPS can be regulated in the proposed method to imitate varioiis load. From the experimental results, the efficiency of saving energy is more than 85 percent at half-load nearby and will be higher while load increasing.
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