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. 17, 2010
Filed:
Mar. 12, 2009
Leonardo Serpa, Zürich, CH;
Srinivas Ponnaluri, Untersiggenthal, CH;
Leonardo Serpa, Zürich, CH;
Srinivas Ponnaluri, Untersiggenthal, CH;
ABB Schweiz AG, Baden, CH;
Abstract
A method is disclosed for the operation of a converter circuit, wherein the converter circuit has a converter unit having a multiplicity of actuatable power semiconductor switches and an LCL filter which is connected to each phase connection of the converter unit, in which the actuatable power semiconductor switches are actuated by means of an actuation signal (S) formed from a hysteresis active power value (d), from a hysteresis reactive power value (d) and from a selected flux sector (θ). The hysteresis active power value (d) is formed from a differential active power value (P). In addition, the hysteresis reactive power value (d) is formed from a differential reactive power value (Q). An apparatus for carrying out the method is also disclosed.