Photovoltaic power generation apparatus

Details Photovoltaic power generation apparatus Photovoltaic power generation apparatus

1998-05-01

2000-08-22

Chapman, Mark

Batteries: thermoelectric and photoelectric

Photoelectric

Panel or array

H01L 2500

Patent

active

061075604

ABSTRACT:
A solar cell array used in a photovoltaic power generation apparatus for housing covers a relatively large outside area for installation, and a considerably large earth capacitance Ca exists between the solar cell array and the ground. Further, as an inverter for converting direct-current electric power generated by the solar cell array into alternating-current electric power, a transless-type inverter is used for reducing cost. Therefore, a slight leak current flows via the earth capacitance Ca, which may cause undesirable operation of an earth leakage circuit breaker inserted between the inverter and a commercial AC power system. In the photovoltaic power generation apparatus of the present invention, by designing it so that the relationship between the earth capacitance Ca[.mu.F] and leak current detection sensitivity EL[mA] of the earth leakage circuit breaker is Ca<EL/3, the undesirable operation of the earth leakage circuit breaker due to the leak current is prevented.

REFERENCES:
patent: 5111127 (1992-05-01), Johnson
patent: 5677833 (1997-10-01), Bingley

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