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:
Jan. 09, 2018
Filed:
Aug. 12, 2011
Massimo Valiani, Corciano, IT;
David Martini, Valdarno, IT;
Andrea Marcianesi, Arezzo, IT;
ABB Technology AG, Zurich, CH;
Abstract
There is described an electrical energy conversion system comprising: at least a first inverter () and at least a second inverter (), whose outputs are connected in parallel; at least a first DC voltage source (PV) connected to the input of the first inverter () and a second DC voltage source (PV) connected to the input of the second inverter (); a ground connection of the first inverter () and a ground connection of the second inverter (). The ground connection of said inverters comprises a ground connection branch (G;G) with a current sensor () which supplies a signal proportional to a leakage grounding current (I) measured in said ground connection branch (G;G). Through the signal proportional to the leakage current measured a feedback signal is generated to control the leakage current (I).