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:
Dec. 10, 2019
Filed:
Jan. 13, 2017
Siemens Aktiengesellschaft, München, DE;
Richard H. Osman, Pittsburgh, PA (US);
SIEMENS AKTIENGESELLSCHAFT, München, DE;
Abstract
Systems and method for controlling an alternating current (AC) electrodynamic machine () with a variable frequency drive (VFD) () include a control system () with a phase-locked-loop (PLL) circuit () for providing a stator flux angle signal () to the VFD (), the PLL circuit () comprising a proportional integral (PI) regulator () providing an output signal (); and a feedforward generator () in communication with the PLL circuit (), wherein the feedforward generator () tracks a stator flux position of the AC electrodynamic machine () such that the feedforward generator () determines a stator frequency signal () based on stator flux signals () and supplies the stator frequency signal () downstream of the PI regulator (), and wherein the stator frequency signal () is summed with the output signal () of the PI regulator () to provide a dynamically adapted output signal () of the PI regulator (), and wherein the adapted output signal () is used to determine the stator flux angle signal ().