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目前,不间断电源供电系统(UPS)的制造技术经过长时间的发展已较为成熟,国内外各大UPS制造厂商均可以提供如下三种主流的UPS机型。1)在线式(Online)UPS供电系统。这种在线式UPS供电系统可以提供了十分理想的输出性能。由于市电电压始终保持着对UPS中的蓄电池组的充电状态,负载由蓄电池组经过逆变器输出供电。所以,这种UPS始终进行着在线运行的状态,当市电发生故障时,旁路开关并不会动作。
At present, the manufacturing technology of the uninterrupted power supply system (UPS) has been relatively mature after a long period of development. Major UPS manufacturers at home and abroad can provide the following three mainstream UPS models. 1) Online UPS power supply system. This on-line UPS power supply system can provide a very good output performance. Since the mains voltage always maintains the state of charge of the battery pack in the UPS, the load is supplied by the battery pack through the inverter output. So, this kind of UPS always carries on the condition that the online operation, when the utility power breaks down, the bypass switch does not move.