Simulation and experiment show the UPS system has the merits of strong ability with three-phase unbalanced load,low total harmonic distortion(THD) of output voltage,high work efficiency.

• 通过仿真和实验结果表明,该UPS系统具有带三相不对称负载能力强,输出电压波形总谐波失真度(THD)小,工作效率高等优点。