发明名称 |
DEVICE FOR SUPPLYING ELECTRICAL ENERGY FROM A PLURALITY OF STRINGS OF PHOTOVOLTAIC MODULES TO A POWER GRID |
摘要 |
<p>I n a device (1) for supplying electrical energy from a plurality of strings (2) of photovoltaic modules (3) to a power grid (4), which comprises a connection terminal (7) for each string (2) of the plurality of strings (2), each connection terminal (7) comprising over-current protection means including a power switch (9) for selectively disconnecting the respective string (2), and a central insulation monitoring unit (15) providing an insulation status of the entire plurality of strings (2); the power switch (9) of each over-current protection means is an all-pole disconnecting power switch (9) which can be opened and closed by a controller (11 -13) via a motor in response to the insulation status provided by the central insulation monitoring unit (15) to select and selectively disconnect a string having an insulation failure, and to further supply electrical energy from the remaining strings (2) of the plurality of strings (2) having no insulation failure.</p> |
申请公布号 |
CA2768521(A1) |
申请公布日期 |
2011.02.10 |
申请号 |
CA20102768521 |
申请日期 |
2010.08.03 |
申请人 |
SMA SOLAR TECHNOLOGY AG |
发明人 |
FALK, ANDREAS;GOLDAU, JAN;SCHULZE, GEROLD;FISCHER, JOCHEN |
分类号 |
H02J1/10;H02H3/16;H02N6/00 |
主分类号 |
H02J1/10 |
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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