Electric power conversion systems – Current conversion – Including automatic or integral protection means
Reexamination Certificate
2011-04-12
2011-04-12
Behm, Harry (Department: 2838)
Electric power conversion systems
Current conversion
Including automatic or integral protection means
C323S906000
Reexamination Certificate
active
07924582
ABSTRACT:
The subject matter of the invention is an inverter (3), more specifically for use in a photovoltaic plant (1) with a direct voltage input (connection terminals4; 5) for connection to a generator (2) and an alternating voltage output (connection terminals7; 8) for feeding into an energy supply network (6) as well as with a DC-AC converter (12) with semiconductor switch elements (15) and an intermediate circuit (11), at least one short-circuit switch element (18) being connected in parallel to the generator (2), so that the voltage will not exceed a maximum voltage value neither at the connection terminals (4; 5) of the generator (2) nor between the connection terminals (9; 10) of the inverter. This is achieved in that the inverter (3) comprises, in the intermediate circuit (12), a buffer capacitor (14) that is connected to the generator (2) through a protection diode (17) so that said buffer capacitor (14) will not be discharged upon actuation of the short-circuit switch element (18), the generator (2) working according to a clock rate in the short-circuit mode of operation.
REFERENCES:
patent: 4691159 (1987-09-01), Ahrens et al.
patent: 4761722 (1988-08-01), Pruitt
patent: 6549441 (2003-04-01), Aigner et al.
patent: 6611441 (2003-08-01), Kurokami et al.
patent: 2001/0054881 (2001-12-01), Watanabe
patent: 2005/0105224 (2005-05-01), Nishi
patent: 2630597 (1977-01-01), None
patent: 3725476 (1989-02-01), None
patent: 4041672 (1992-06-01), None
patent: 4102069 (1992-07-01), None
patent: 4325436 (1995-02-01), None
patent: 10312921 (2004-10-01), None
patent: 1039621 (2000-09-01), None
patent: 7241077 (1995-09-01), None
patent: 11312022 (2000-11-01), None
patent: 2005070709 (2004-03-01), None
patent: 2004254447 (2004-09-01), None
patent: 2006238629 (2006-09-01), None
Greizer Frank
Müller Burkhard
Behm Harry
Eschweiler & Associates LLC
Grubb Matthew
SMA Solar Technology AG
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