TH25570A - An efficient control system for induction motors? - Google Patents

Abstract

It will be disclosed here about an efficient control system for an induction motor that is optimized for Calculate the actual and ideal slip of an induction motor and will maintain such a slip at the optimal value that responds to Load torque variation on one side and optimized. To operate with a power transducer in order to control the force The pressure is fed to the induction motor. In order to obtain Optimal efficiency of an induction motor, on the other side, is a voltage, current and power frequency signal Supplied by the power transducer to the induction motor will Receive separate real-time monitoring Will calculate the actual slip And the most ideal slip from these signs And thus a new pressure command signal is fed to the power transducer.

Claims (2)

1. An efficient control system for induction motors includes the induction motor itself, a power transducer connected to the induction motor, and sensors optimized for separately real-time sensing of voltage signals, current signals, and frequency signals of the power supplied from the power transducer to the induction motor. This allows for control of the induction motor's output during operation, with these signals responding to the load torque. Such an efficient control system for induction motors comprises: a slip signal processor containing a program written with equations to calculate the actual slip of the induction motor during operation based on the voltage, current, and frequency signals of the power supplied from the power transducer to the induction motor and the motor constant; an optimized slip signal processor containing a program written with equations to calculate the desired optimal slip for maximum induction motor efficiency; and a voltage command transmitter containing a program written with equations... This is used to calculate the voltage command signal, which in this case will supply the voltage command signal to the power transducer and control the slip to be maintained at the optimal value, so that the induction motor can operate at its maximum efficiency depending on the load torque. 2. An efficient control system for an induction motor that complies with claim 1, in which the slip signal processor is contained, written by equation: (chemical formula), which is used to calculate the slip (S(n)) from the voltage (Vl(n)), current (Il(n)), and frequency (f(n)) signals of the power supplied from the power transducer to the induction motor and the motor constant; in which the optimal slip signal processor is contained, written by equation: (chemical formula), which is used to calculate the optimal slip S* (n+l) at the next point in time; and in which the voltage signal transmitter is contained, written by the program. Written as the equation: (chemical formula) which is used to calculate the scalar value (Vl(n+l)) of the voltage command signal at the next point in time from the scalar value (vl(n)) of the voltage signal (Vl(n)) (2 claims, 2 figures).