发明授权
US08587906B2 Photovotaic system including hybrid bi-directional DC contactors and method of detection and isolation of faults therein
失效
包括混合双向直流接触器的光伏系统及其中的故障的检测和隔离方法
- 专利标题： Photovotaic system including hybrid bi-directional DC contactors and method of detection and isolation of faults therein
- 专利标题（中）： 包括混合双向直流接触器的光伏系统及其中的故障的检测和隔离方法
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申请号： US13440275申请日： 2012-04-05
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公开(公告)号： US08587906B2公开(公告)日： 2013-11-19
- 发明人: Vijay Bhavaraju , Tiefu Zhao , Peter J. Theisen
- 申请人： Vijay Bhavaraju , Tiefu Zhao , Peter J. Theisen
- 申请人地址： US OH Cleveland
- 专利权人： Eaton Corporation
- 当前专利权人： Eaton Corporation
- 当前专利权人地址： US OH Cleveland
- 代理机构： Ziolkowski Patent Solutions Group, SC
- 主分类号： H02H3/00
- IPC分类号： H02H3/00
摘要：
A photovoltaic (PV) power system is disclosed that includes hybrid DC contactors corresponding to each of a plurality of PV strings, with each hybrid DC contactor having main contacts, a solid state switching unit positioned in parallel with the main contacts, and sensors configured to measure a voltage and current on respective PV strings. A controller is provided in the PV power system that is configured to receive voltage and current data on the PV strings, detect a fault condition on a respective PV string based on the voltage and current data, cause the main contacts of a respective hybrid DC contactor to remain closed on each PV string for which a fault condition is detected, and cause the main contacts of a respective hybrid DC contactor to open on each PV string for which no fault condition is detected, so as to clear the fault condition.
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