| 发明名称 |
METHOD AND APPARATUS FOR DETECTING AN ARC IN A DC CIRCUIT |
| 摘要 |
The disclosure relates to a method for detecting an arc in a DC circuit. The method includes measuring and analyzing an AC component (IAC) of a current (I) flowing in the circuit and determining at least one parameter of the AC component (IAC). The level of a DC component (IDC) of the current (I) is varied and a degree of correlation between the level of the DC component (IDC) of the current (I) flowing in the DC circuit and the at least one parameter of the AC component (IAC) is determined. An arc is detected and selectively signaled based on the degree of the determined correlation. The disclosure also relates to an apparatus for carrying out the method and to an inverter comprising such an apparatus. |
| 申请公布号 |
US2014210485(A1) |
申请公布日期 |
2014.07.31 |
| 申请号 |
US201414230423 |
申请日期 |
2014.03.31 |
| 申请人 |
SMA Solar Technology AG |
发明人 |
Lang Johannes;Wegener Thomas;Kratochvil Marcel;Behrends Holger;Viotto Michael |
| 分类号 |
G01R31/02 |
主分类号 |
G01R31/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for detecting an arc in a DC circuit, comprising:
measuring and analyzing an AC component of a current flowing in the DC circuit and determining at least one parameter of the AC component; varying a level of a DC component of the current; determining a degree of correlation between the level of the DC component of the current flowing in the DC circuit and the at least one parameter of the AC component, and selectively detecting and signaling an arc based on the determined degree of correlation. |
| 地址 |
Niestetal DE |
