PUBLICATIONS
Paper
[International Journals] Kyo-Beum Lee and Frede Blaabjerg, “Improved Direct Torque Control for Sensorless Matrix Converter Drives with Constant Switching Frequency and Torque Ripple Reduction,” IJCAS (International Journal of Control, Automation, and Systems), vol. 4, no. 1, pp. 113–123, Feb. 2006. -SCIE
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In this paper, an improved direct torque control (DTC) method for sensorless matrix converter drives is proposed which enables to
minimize torque ripple, to obtain unity input power factor, and to achieve good sensorless speed-control performance in the low
speed operation, while maintaining constant switching frequency and fast torque dynamics. It is possible to combine the
advantages of matrix converters with the advantages of the DTC strategy using space vector modulation and a flux deadbeat
controller. To overcome the phase current distortion by the non-linearity of a matrix converter drive, the simple non-linearity
compensation method using PQR power theory are presented in the proposed scheme. Experimental results are shown to illustrate
the feasibility of the proposed strategy.
