Scientific and Technical Journal


ISSN Print 2221-3937
ISSN Online 2221-3805

A comparative test of two control algorithms for active power factor corrector on variations of direct current link capacitance is fulfilled. The research was carried using a typical algorithm, which is based on the linear model of three-phase controlled converter, and an algorithm that is based on the concept of formation of converter total energy. Research were performed using model convertor created in Matlab / SimPowerSystems, which takes into account the transients in electrical circuits, processes are caused switching power switches, discrete principle of the converter input voltage formation and implements the principle of forming vector PWM.

Established that the control algorithm based on forming of converter full power provides the stable operation with capacity of direct current link three times smaller comparatively tothestandard algorithm.


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