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:
Aug. 18, 2009
Filed:
Jan. 08, 2007
Holger Becker, Kassel, DE;
Günther Cramer, Kassel, DE;
Sven Bremicker, Alheim-Baumbach, DE;
Thorsten Dingel, Edemünde, DE;
Bernd Engel, Wolfenbüttel, DE;
Wilfried Groote, Vellmar, DE;
Frank Greizer, Kaufungen, DE;
Ralf Joachim Laschinski, Kassel, DE;
Matthias Victor, Niestetal, DE;
Torben Westphal, Kassel, DE;
Holger Becker, Kassel, DE;
Günther Cramer, Kassel, DE;
Sven Bremicker, Alheim-Baumbach, DE;
Thorsten Dingel, Edemünde, DE;
Bernd Engel, Wolfenbüttel, DE;
Wilfried Groote, Vellmar, DE;
Frank Greizer, Kaufungen, DE;
Ralf Joachim Laschinski, Kassel, DE;
Matthias Victor, Niestetal, DE;
Torben Westphal, Kassel, DE;
SMA Solar Technology AG, Niestetal, DE;
Abstract
A method of converting a direct voltage generated by a decentralized power supply system into three-phase alternating voltage by means of a plurality of single-phase inverters (WR-WR), said alternating voltage being provided for supplying an electric mains, is intended to avoid inadmissible load unbalances using single-phase inverters. This is achieved in that, upon failure of one inverter (WR-WR), an asymmetrical power supply distribution is reduced by limiting the output of the other inverters. The method makes it possible to simplify three-phase voltage monitoring.