Transient torque maximizing strategy of induction machine in field weakening region

Author

Song, Seung-Ho ; Choi, Jong-Woo ; Sul, SeungKi

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

2

fYear

1998

fDate

17-22 May 1998

Firstpage

1569

Abstract

In this paper, a new field weakening algorithm which maximizes the output torque not only in steady state but also in transient state is proposed, Considering both voltage and current limits of the system, analytic solutions for optimal torque utilization in field weakening region I and region II are obtained. This algorithm finds optimal currents considering dynamic voltage limit based on flux and speed. So the maximum usage of stator voltage even in transient state results in the maximum torque and fast response time. Simulation and experimental results show the effectiveness of the proposed field weakening scheme

Keywords

induction motor drives; machine theory; stators; torque; current limit; drives; dynamic voltage limit; field weakening region; induction machine; maximum stator voltage usage; output torque maximisation; steady state; transient torque maximizing strategy; voltage limit; Equations; Induction machines; Inverters; Pulse width modulation; Research and development; Rotors; Stators; Steady-state; Torque control; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.703387

Filename

703387