H - Electricity – 02 – J
Patent
H - Electricity
02
J
H02J 3/18 (2006.01) H02P 7/628 (1990.01)
Patent
CA 2126398
ABSTRACT OF THE DISCLOSURE An induction motor control apparatus, for converting an AC power supply voltage to a motor supply voltage for an induction motor, includes a feedback control loop for controlling the level of the motor supply voltage such that the induction motor operates close to a predetermined value of power factor, and also includes circuits for deriving a signal which varies in accordance with the motor admittance (or impedance), and for differentiating that signal to obtain a parameter variation signal which indicates an amount and direction of any sudden change in the motor load torque. The parameter variation signal is applied to the control loop such as to immediately increase or decrease the motor supply voltage, as required, when any sudden change in load occurs, thereby ensuring rapid control response together with stability of control.
Hatanaka Takefumi
Kuwahara Naruto
Arex Electronics Corporation
Gowling Lafleur Henderson Llp
LandOfFree
Induction motor control apparatus providing high efficiency... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Induction motor control apparatus providing high efficiency..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Induction motor control apparatus providing high efficiency... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1643791