The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2013
Filed:
Sep. 09, 2011
Guenther Cramer, Kassel, DE;
Bernd Engel, Wolfenbuettel, DE;
Frank Greizer, Kaufungen, DE;
Joachim Ralf Laschinski, Kassel, DE;
Guenther Cramer, Kassel, DE;
Bernd Engel, Wolfenbuettel, DE;
Frank Greizer, Kaufungen, DE;
Joachim Ralf Laschinski, Kassel, DE;
SMA Solar Technology AG, Niestetal, DE;
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.