Title :
Modeling and analysis of closed-loop slip energy recovery induction motor drive using a linearization technique
Author :
Akpinar, Eyup ; Trahan, R.E. ; Nguyen, A.D.
Author_Institution :
Dept. of Electr. Eng., New Orleans Univ., LA, USA
fDate :
12/1/1993 12:00:00 AM
Abstract :
A fourth order nonlinear model is derived from a previously developed model (Krause et al., 1988) for an open-loop slip energy recovery induction motor drive. The nonlinear transient model of the open-loop drive is linearized around a steady-state operating point using a small signal perturbation technique and the transfer functions which relate the input and output variables are derived. The block diagram for the closed-loop control system is obtained. The responses of the proportional plus integral (PI) controller employed to control the rotor speed and the PI controller used to control the DC link current are predicted and compared with experimental results
Keywords :
closed loop systems; electric current control; electric drives; induction motors; linearisation techniques; machine control; machine theory; rotors; slip (asynchronous machines); transfer functions; two-term control; velocity control; DC link current; PI control; block diagram; closed-loop control system; fourth order nonlinear model; linearisation; machine control; machine theory; response; rotor speed; slip energy recovery induction motor drive; small signal perturbation technique; steady-state operating point; transfer functions; Control systems; Frequency conversion; Induction motor drives; Inverters; Open loop systems; Pi control; Proportional control; Rectifiers; Steady-state; Transfer functions;
Journal_Title :
Energy Conversion, IEEE Transactions on
