发明名称 |
Apparatus and method for an adaptive level transition of an NPC-inverter within a transformerless uninterruptible power supply |
摘要 |
<p>Systems and methods are provided for controlling an uninterruptible power supply (UPS) to transition between three- or higher-level operation and two-level operation in a neutral-point-clamped (NPC) inverter (22). In an example, a UPS system (10) includes an NPC inverter (22) and a controller (24). The NPC inverter (22) may supply power to a load (14). The controller (24) may control the inverter (22) to operate in a three-level mode or higher when the load (14) is substantially balanced and to operate in a two-level mode when the load (14) is substantially unbalanced.</p> |
申请公布号 |
EP2693627(A2) |
申请公布日期 |
2014.02.05 |
申请号 |
EP20130177856 |
申请日期 |
2013.07.24 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
KOLHATKAR, YASHOMANI Y.;COLOMBI, SILVIO;PIEMONTESI, MARCO;PRASAD, LAKSHMI;STROZZI, LAURO |
分类号 |
H02M7/487;H02J9/00;H02M7/5387 |
主分类号 |
H02M7/487 |
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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