Fast rotor flux control of direct-field-oriented induction motor operating at maximum efficiency using adaptive rotor flux observer

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:419517

Matsuse, Kouki; Katsuta, Seiji; Tsukakoshi, Masahiko; Ohta, Masaru ^[1]; Huang, L ^[2]

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1. Meiji Univ., Kawasaki (Japan). Dept. of Electrical Engineering
2. Tsinghua Univ., Beijing (China). Dept. of Electrical Engineering

A method of using an adaptive rotor flux observer to rapidly control the rotor flux of direct-field-oriented induction motors driven by a deadbeat rotor flux controller has been developed. The method ensures maximum efficiency in the steady state without degradation of the dynamic response. Furthermore, to solve the problem of flux current variations that arise from small errors in the measurement of the stator voltage and current, a flux current reference is calculated from the appropriate rotor flux in the steady state. Simulation and experimental results for an induction motor have demonstrated that this method yields the maximum efficiency and good speed response to changes in both torque and motor speed without any degradation in the transient characteristics.

• OSTI ID: 419517
• Report Number(s): CONF-9510203--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CONTROL THEORY
ELECTRIC MOTORS
ENERGY EFFICIENCY
LEARNING
STABILITY