Title :
Generalized solution of minimum time current control in three-phase balanced systems
Author :
Choi, Jong-Woo ; Sul, Seung-Ki
Author_Institution :
R&D Center, LG Ind. Syst., Kyongki-do, South Korea
fDate :
10/1/1998 12:00:00 AM
Abstract :
In this paper, a new current controller that guarantees the fastest transient response is proposed. The basic concept is to find the optimal control voltage for tracking the reference current with minimum time under the voltage limit constraint. The generalized solution of the minimum time current control in the systems is presented in this paper. With the generalized solution, the minimum time current controller can be easily applied to all three-phase balanced systems. Through simulation and experiment on an induction motor drive, it is observed that the proposed controller has much less transient time than the conventional synchronous proportional integral regulator
Keywords :
electric current control; induction motor drives; optimal control; transient response; two-term control; variable speed drives; voltage control; current controller; induction motor drives; minimum time current control; optimal control voltage; reference current tracking; synchronous proportional integral regulator; three-phase balanced systems; transient response; voltage limit constraint; Control systems; Current control; Electrical equipment industry; Optimal control; Pulse width modulation; Pulse width modulation converters; Regulators; Steady-state; Transient response; Voltage control;
Journal_Title :
Industrial Electronics, IEEE Transactions on
