Patent · US Active

Device and method for generating alternating current

US8373308B2 · kind B2 · utility

1Cited by

0References

35Claims

0Family size

Assignee

SMA Solar Technology AG · DE

Inventors

Guenther Cramer · Kassel, DE
Bernd Engel · Stuttgart, DE
Frank Greizer · Kaufungen, DE
Joachim Laschinski · Berlin, DE

Key dates

Filing date	Sep 9, 2011
Grant date	Feb 12, 2013
Priority date	—
Expiry date	Sep 9, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/56
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A solar power plant includes at least one photovoltaic module for generating power to be fed in a multi-phase grid. At least one inverter is provided for converting a direct voltage generated by the at least one photovoltaic module into an alternating mains voltage. A mains transformer is coupled to receive the alternating mains voltage from the inverter. The inverter is coupled to a primary side of the mains transformer. A direct voltage source coupled between an output of the at least one inverter and an input of the mains transformer such that a potential of the at least one photovoltaic module is displaced and that a bias voltage is set which is different from zero volts.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.