System for seamless estimation of speed and/or position,...

Details System for seamless estimation of speed and/or position,... System for seamless estimation of speed and/or position,...

2011-08-30

2011-08-30

Benson, Walter (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S400140, C318S400320

Reexamination Certificate

active

08008878

ABSTRACT:
Procedure for determining the electrical drive speed (ωef) and/or position (φe) in a permanent magnet rotor of a brushless electrical linear or rotary motor from a measurement of a multi-phase stator current (i1,i2). Speed is determined using a mathematical motor model (9). From the influence of a rotor reverse EMK that affects the stator current (i1,i2) conclusions are made about the rotor speed (ωef) and/or position (φe) and an appropriate model speed value (13,19,23) is generated.

REFERENCES:
patent: 6163127 (2000-12-01), Patel et al.
patent: 6763622 (2004-07-01), Schulz et al.
patent: 6809496 (2004-10-01), Anghel et al.
patent: 6831439 (2004-12-01), Won et al.
patent: 6894454 (2005-05-01), Patel et al.
patent: 7026772 (2006-04-01), Quirion
patent: 7577545 (2009-08-01), Hu
patent: 7759897 (2010-07-01), Piippo
patent: 2004/0189240 (2004-09-01), Islam et al.
patent: 2005/0151502 (2005-07-01), Quirion
patent: WO2005/099082 (2005-10-01), None

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