Reversible frequency converters in the composition of multimotor electric drives

Abstract

Abstract The article deals with the modeling of multi-motor electric drives based on reversible frequency converters (RFC) based on Autonomous voltage inverters and current inverters in the program Matlab 13. The possibilities of energy recovery using keys with twoway conductivity are shown. The interaction of reversible converters with the supply network, as well as the influence of recovery processes on the capacitor of the DC link is presented. A comparative analysis of three schemes using RFC based on autonomous current inverters (ACI) and voltage inverters (AVI). Technical solutions are proposed to direct the braking energy into the supply network and reduce the voltage level on the capacitor plates without loss of energy efficiency