发明名称 |
UNINTERRUPTIBLE POWER SUPPLY SYSTEM WITH FAST TRANSFER FOR UNDERVOLTAGE SOURCE LINE FAILURES |
摘要 |
A UPS system may be operated selectively in either a high efficiency mode or a low efficiency mode. An inductor is connected in series between the transfer switch and a secondary power source. The transfer switch includes thyristors arranged in a reverse connected configuration. A controller synchronizes gate commands to the thyristors in order to synchronize reserve voltage introduced by the inverter. If the load currents are not in phase with a fundamental voltage of the secondary power source, the controller waits up to a first time period in order to estimate when current through the switches will reach zero. If the out of phase current will reach zero by the end of a second time period, the inverter is switched on at the end of the second time period. |
申请公布号 |
WO2014041523(A2) |
申请公布日期 |
2014.03.20 |
申请号 |
WO2013IB58548 |
申请日期 |
2013.09.14 |
申请人 |
CHLORIDE SRL |
发明人 |
COSTA, PIER UGO;BONORA, MARCO;GALUPPI, GRAZIANO |
分类号 |
H02J9/00 |
主分类号 |
H02J9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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