| 发明名称 |
SYSTEM AND METHOD FOR ISLANDING DETECTION AND PREVENTION IN DISTRIBUTED GENERATION |
| 摘要 |
A method for detecting and preventing islanding includes issuing a command to an inverter connected to a power source, where the inverter is coupled to a power grid and supplies power to the power grid, the command causes a frequency of a waveform output by the inverter to vary, and the frequency of the waveform output by the inverter is a command frequency, determining that a amount of change of the command frequency is a constant value for a predetermined amount of time, removing the power supplied by the inverter from the power grid, and determining whether the power grid is valid. |
| 申请公布号 |
US2015380940(A1) |
申请公布日期 |
2015.12.31 |
| 申请号 |
US201514737468 |
申请日期 |
2015.06.11 |
| 申请人 |
Bhowmik Shibashis;Mazhar Iman;Parkhideh Babak |
发明人 |
Bhowmik Shibashis;Mazhar Iman;Parkhideh Babak |
| 分类号 |
H02J3/38 |
主分类号 |
H02J3/38 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for preventing islanding comprising:
issuing a command to an inverter connected to a power source, wherein the inverter is coupled to a power grid and provides power from the power source to the power grid, wherein the command causes a frequency of a waveform output by the inverter to vary, and wherein the frequency of the waveform output by the inverter is a command frequency; determining that a amount of change of the command frequency is a constant value for a predetermined amount of time; removing the power supplied by the inverter from the power grid; and determining whether the power grid is valid. |
| 地址 |
Charlotte NC US |
