Keywords
input current
reactive power
unbalanced and nonsinusoidal input voltage матричний перетворювач
вхідний струм
реактивна потужність
несиметрія
несинусоїдальність
How to Cite
Abstract
The paper aims to study methods of the matrix converter (MC) control on the base of input reactive power control algorithm for improving the quality of MC input current under unbalanced and/or nonsinusoidal input voltage conditions. Simple assurance of the uniformity of the power consumed by the load in these conditions leads to an additional modulation of the active component of the input current and thereby a distortion of its waveform. A dynamic modulation of its reactive component that does not affect the load is possible in order to correct and improve the quality of current consumed from the network. Different versions of setting of the direction of the current space vector with respect to the input voltage space vector have been generalized. The initial condition is the information about the instantaneous values of the MC input voltage space vector, the space vector of the fundamental harmonic of positive sequence and MC output current space vector. It is shown how the relationship between modulation of the direction of the input current space vector and immediate reference and realization of its reactive component is set. Analytical expressions of reference of the transfer ratio of the active component of the output current to the reactive component of the input current and the algorithm of the implementation have been summarized. The simulation showed the reliability and effectiveness of the proposed approach to improve the waveform of the MC input currents based on actual conditions and switching discrete formation of these currents. References 7, table 1, figures 7.
References
Mykhalskyi V.M., Sobolev V.M., Shapoval I.A., Chopyk V.V. Maximizing the control range of a matrix converter // Tekhnichna Elektrodynamika. – 2015. – No. 1. – Pp. 7–13. (Ukr)
Blaabjerg F., Casadei D., Klumpner C., Matteini M. Comparison of two current modulation strategies for matrix converters under unbalanced input voltage conditions // IEEE Trans. on Industrial Electronics. – Vol. 49. – No.2. – April 2002. – Pp. 289–295.
Casadei D., Serra G., Tani A. A general approach for the analysis of the input power quality in matrix converters // Proc. IEEE-PESC ‘96, Baveno, Italy, June 23-27, 1996. – Vol. II. – Pp. 1128–1134.
Casadei D., Serra G., Tani A. Reduction of the input current harmonic content in matrix converters under input/output unbalance // Proc. of IEEE-IECON ‘95, Orlando, Florida, 6-10 Nov. 1995. – Vol. I. – Pp. 457–462.
Casadei D., Serra G., Tani A. Reduction of the input current harmonic content in matrix converters under input/output unbalance // IEEE Trans. on Industrial Electronics. – Vol. 45. – No.3. – June 1998. – Pp. 401–411.
Mykhalskyi V.M., Sobolev V.M., Chopyk V.V., Polishchuk S.Y., Shapoval I.A. Matrix converter control
strategy maximizing reactive power transfer // Proceeding of the International Conference on Intelligent Energy and Power Systems (IEPS). – Kyiv (Ukraine). – June 02-06, 2014. – Pp. 26–31.
Nielsen P., Casadei D., Serra G., Tani A. Evaluation of the input current quality by three different modulation strategies for SVM controlled matrix converters with input voltage unbalance // Proc. of IEEE-PEDES ’96, New Delhi, India, Jan. 8-11, 1996. – Vol. II. – Pp. 794–800.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2022 Tekhnichna Elektrodynamika