An Averaged AC Models Accuracy Evaluation of Non-Isolated Matrix-Reactance PWM AC Line Conditioners

This paper deals with matrix-reactance PWM AC line conditioners (MRACLCs). Theoretical preliminary to averaged modelling of these conditioners with current time averaging operator and averaging errors estimation for fundamental harmonics of state variable is presented. On the base of theoretical consideration there is steady-state averaged AC models quantitative accuracy evaluation formulated in this paper. As an application of the theory, examples of the analysis of averaging errors for conditioners based on buck-boost and Sepic topologies are presented. In this paper one can find averaging errors analysis both as a function of switching frequency as well as a function of load resistance.

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