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http://dx.doi.org/10.5302/J.ICROS.2003.9.8.632

Time Delay Compensation for Output Voltage Vector Selection in Direct Torque Control of Induction Machine  

최병태 (경북대학교 전자공학과)
박철우 (경북대학교 전자공학과)
권우현 (경북대학교 전자공학과)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.9, no.8, 2003 , pp. 632-639 More about this Journal
Abstract
This paper proposes a simple compensation scheme for the time delay caused by measurement, calculation and selection of voltage vector in Direct Torque Control (DTC) of an induction motor. In general scheme, it is difficult to know the exact delay time, furthermore the delay time can be varied by program routines for calculation and processing of measured data. In this proposed scheme, by applying voltage vector at the beginning of next sampling period, a fixed delay time is achieved and its compensation becomes much simpler. Furthermore, with the simple compensation algorithm, an improved performance can be achieved by shortening sampling period. Experimental results prove the feasibility of the proposed scheme in induction motor control.
Keywords
direct torque control; time delay compensation; induction motor;
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