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:
Oct. 07, 2008
Filed:
Nov. 14, 2005
Charles J. Romenesko, Roscoe, IL (US);
Charles J. Romenesko, Roscoe, IL (US);
Hamilton Sundstrand Corporation, Rockford, IL (US);
Abstract
A controller applies a pattern of pulses to switching elements within a multi-level controller to effectuate control of the fundamental voltage magnitude and phase associated with the converter, as well as providing harmonic minimization of the 5and 7level harmonics. The controller combines a first pattern of pulses with a second pattern of pulses phase shifted by an amount based on the desired fundamental voltage magnitude to create a third pattern of pulses. The controller applies a phase shift to the third pattern of pulses based on the desired fundamental voltage phase. The controller supplies switching control waveforms to active components within the multi-level controller based on the phase shifted third pattern of pulses such that the desired fundamental voltage magnitude and phase is generated and selected harmonics are minimized.