Electricity: motive power systems – Synchronous motor systems – Armature winding circuits
Patent
1988-11-14
1990-04-10
Smith, Jr., David
Electricity: motive power systems
Synchronous motor systems
Armature winding circuits
318798, H02K 1910, H62P 540
Patent
active
049163680
ABSTRACT:
A controlling device for a permanent magnet synchronous motor wherein a permanent magnet is used as a rotor and which includes three-phase armature windings comprises a detecting means for detecting a rotational position and a rotational angle of said rotor, a comparison means for comparing the rotational speed detected by said cetecting means with a predetermined reference speed and for developing a value of a difference between the rotational speed and the reference speed, a converting means for determining currents to be supplied individually to said armature windings in response to a vector value obtained from the rotational position detected by said detecting means and the value of the difference delivered from said comparison means, and a current controlling means for controlling current flows through said individual armature windings in response to values obtained by said converting means.
REFERENCES:
patent: 4629958 (1986-12-01), Kurakake et al.
patent: 4649331 (1987-03-01), Jahns
Leonhard, W., Control of Electrical Drives, Springer Verlag, 1985, pp. 260-270.
Onoda Yoshimitsu
Yamakoshi Takato
Hitachi Elevator Engineering & Service Company, Ltd.
Smith Jr. David
LandOfFree
Controlling method and device for permanent magnet synchronous m does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controlling method and device for permanent magnet synchronous m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlling method and device for permanent magnet synchronous m will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2301041