Invention Grant
- Patent Title: Methods and apparatuses for elimination of torque pulsation in doubly fed induction generators using the field reconstruction method
- Patent Title (中): 使用场重构方法消除双馈感应发电机中的转矩脉动的方法和装置
-
Application No.: US13098273Application Date: 2011-04-29
-
Publication No.: US08742733B2Publication Date: 2014-06-03
- Inventor: Morgan M. Kiani , Wei Wang , Babak Fahimi , Wei-Jen Lee
- Applicant: Morgan M. Kiani , Wei Wang , Babak Fahimi , Wei-Jen Lee
- Applicant Address: US TX Austin
- Assignee: Board of Regents, The University of Texas System
- Current Assignee: Board of Regents, The University of Texas System
- Current Assignee Address: US TX Austin
- Agency: Chowdhury & Georgakis, P.C.
- Main IPC: H02P9/00
- IPC: H02P9/00 ; H02P9/04

Abstract:
Methods and apparatuses for substantially eliminating torque pulsation in a doubly fed induction machine are disclosed. An example method comprises: measuring a stator current of the doubly fed induction machine, measuring a rotor current of the doubly fed induction machine, calculating a total magnetic flux density in an airgap of the doubly fed induction machine, calculating a tangential force density, calculating an electromagnetic torque, repeating the calculation of the electromagnetic torque over one electrical cycle to estimate a torque pulsation, determining a new rotor current that substantially eliminates the torque pulsation by referencing a set of optimal rotor currents in a look-up table, and changing the rotor current in response to the determination. Other embodiments are described and claimed.
Public/Granted literature
Information query