Title:
METHOD FOR DETERMINING THE POSITION AND THE SPEED OF A ROTOR OF A SYNCHRONOUS ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2013/093223
Kind Code:
A3
Abstract:
The invention relates to a method for determining the position θrot
and the speed Ωrot
of a rotor of a synchronous electric machine, said electric machine being provided with at least one means for measuring the position of said rotor, and a means for measuring the voltages and the currents of the phases of said electric machine. For said method, the following steps are carried out: the position θm
and the speed Ω
m
of said rotor of said electric machine are measured by said position-measuring means; the voltages um
and the currents im
of the phases of said electric machine are measured by said current and voltage measuring means; the total magnetic flux ϰαβ
circulating in said electric machine is estimated from the measured voltages um
and currents im
using a state observer; an estimated position θ and speed Ω of said rotor of said electric machine are derived from the total magnetic flux; and the position θrot
and the speed θrot
of said rotor of said electric machine are considered to be equal to the estimated position θ and speed Ω, or are considered to be equal to the position θm
and speed Ωm
measured on the basis of the speed Ωrot
.
Inventors:
MALAIZE JEREMY (FR)
DIB WISSAM (FR)
PRALY LAURENT (FR)
DIB WISSAM (FR)
PRALY LAURENT (FR)
Application Number:
PCT/FR2012/000475
Publication Date:
March 20, 2014
Filing Date:
November 20, 2012
Export Citation:
Assignee:
IFP ENERGIES NOUVELLES (FR)
International Classes:
H02P6/16; H02P21/14
Domestic Patent References:
| WO2009095979A1 | 2009-08-06 | |||
| WO2011112363A2 | 2011-09-15 |
Foreign References:
| JP2010011543A | 2010-01-14 | |||
| JP2009284557A | 2009-12-03 |
Attorney, Agent or Firm:
NGUYEN, Jean-Paul (1 et 4 avenue de Bois Préau, Rueil-Malmaison Cedex, FR)
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