Title :
Implementation of a time-optimal single-step velocity response control scheme of field oriented induction machines considering saturation of flux
Author :
Sangwongwanich, S. ; Ishida, Muneaki ; Okuma, Shigeru ; Uchikawa, Yoshiki ; Iwata, Koji
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
Abstract :
A time-optimal single-step velocity response control scheme for field-oriented induction machines is implemented, taking magnetic saturation of the rotor flux into account. The scheme is based on the analytical solutions of the time-optimal control problem. High velocity response is achieved, despite field-weakening, for low acoustic noise or high efficiency drives. Optimal control is realized by using a lookup table that is included in the indirect field-oriented control system. The problems of rotor speed and constraint on rate of change of acceleration or deceleration are also discussed. The merit of the time-optimal control scheme as compared with other control strategies is described.<>
Keywords :
asynchronous machines; optimal control; rotors; velocity control; acceleration; deceleration; field oriented induction machines; flux saturation; high efficiency drives; low acoustic noise; rotor flux; rotor speed; time-optimal single-step velocity response control; Acceleration; Acoustic noise; Control systems; Induction machines; Magnetic analysis; Magnetic flux; Optimal control; Saturation magnetization; Table lookup; Velocity control;
Conference_Titel :
Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE
Conference_Location :
Kyoto, Japan
DOI :
10.1109/PESC.1988.18246
