| 发明名称 | Connecting a photovoltaic array at a high open circuit voltage | ||
| 摘要 | For connecting a PV array via an inverter to an AC power grid, at first a DC link at the input side of the inverter is pre-charged from the AC power grid. A link voltage of the DC link is adjusted to a pre-set value with the inverter connected to the AC power grid, the pre-set value being lower than an open circuit voltage of the PV array, and then the PV array at its open circuit voltage is directly connected to the DC link, while the link voltage is continuously adjusted to the pre-set value. | ||
| 申请公布号 | US9331564(B2) | 申请公布日期 | 2016.05.03 |
| 申请号 | US201213479488 | 申请日期 | 2012.05.24 |
| 申请人 | SMA SOLAR TECHNOLOGY AG | 发明人 | Lehmann Reinhard |
| 分类号 | H02J3/00;H02M1/36;H02J3/38 | 主分类号 | H02J3/00 |
| 代理机构 | Eschweiler & Associates, LLC | 代理人 | Eschweiler & Associates, LLC |
| 主权项 | 1. A method of connecting a photovoltaic (PV) array to an AC power grid via an inverter including a DC link at its input side, the method comprising: pre-charging the input DC link of the inverter from the AC power grid; adjusting a link voltage of the DC link to a pre-set value by means of the inverter connected to the AC power grid, the pre-set value being lower than an open circuit voltage of the PV array; and connecting the PV array to the DC link, while executing the step of adjusting, wherein, in the step of connecting, the PV array at its open circuit voltage is directly connected to the DC link. | ||
| 地址 | Niestetal DE | ||