Solar photovoltaic power station system

A solar photovoltaic, solar energy technology, applied in the field of solar photovoltaic power generation, can solve problems such as difficulty in handling unexpected situations

Inactive Publication Date: 2016-07-06
SHINE CHARM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And when an unexpected situation occurs, it will be more difficult to deal with the unexpected situation

Method used

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  • Solar photovoltaic power station system
  • Solar photovoltaic power station system
  • Solar photovoltaic power station system

Examples

Experimental program
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Embodiment Construction

[0030] See attached picture. The junction box described in this embodiment includes a box body, and a printed circuit board is arranged in the box body, and N bus bar connection ends 1 and cable connection ends are printed on the printed circuit board, and the cable connection ends are divided into negative cables The connection end 31 and the positive cable connection end 32; each bus bar connection end 1 is connected to the solar battery string through the bus bar, and each adjacent bus bar connection end 1 is also connected with a diode 2; wherein the first bus bar connection There is an electronic switch 4 in series between the terminal and the negative cable connection end 31, and the electronic switch 4 controls its on-off by the received control signal; the Nth bus bar connection end is connected with the positive cable connection end 32; the two cables The connecting ends are respectively connected with the outside world through cables. A bypass diode 5 is connected b...

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Abstract

The invention discloses a solar photovoltaic power station system. The solar photovoltaic power station system comprises a plurality of solar cell strings, wherein the plurality of solar cell strings are connected in series to a group, the generated voltages are accumulated and then direct current is converted to alternating current by an inverter, a control signal generator is arranged in the power station system, an electronic switch is arranged in a junction box, and the switch-on and the switch-off of the electronic switch are determined by a signal emitted from the control signal generator. By the solar photovoltaic power station system, the voltage in the power station system can be manually or automatically reduced to a safety range when an accident occurs, and thus, site processing is favorably and timely developed.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaic power generation, and in particular relates to a solar photovoltaic power station system. Background technique [0002] The solar power station has developed rapidly in recent years. Its basic structure includes solar photovoltaic battery strings installed on the bracket. After the voltage generated by the battery strings is accumulated by the junction box, the inverter converts the direct current into alternating current, and then merges into the power grid. In a common design scheme, the voltage generated by a single battery string is 30V, and after 14 groups are connected in series, the voltage can reach 420V. And when an unexpected situation occurs, it will be more difficult to deal with the unexpected situation. For example, when a fire breaks out, firefighters cannot enter the power station to put out the fire because there is always a DC high voltage in the power station. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S40/30H02S40/34
CPCH02S40/30H02S40/34Y02E10/50
Inventor 俞益
Owner SHINE CHARM LTD
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