Electromagnetic compatibility of systems autonomous voltage inverter - induction motor with a power source

Abstract

For electric power industry in railway transport, the problem of “clogging” of electrical networks with conductive conjugacy with the consumer has become (valve inverters and other nonlinear loads are the source of higher harmonics and subharmonics of the current, i.e. harmonics with a frequency lower than the frequency of the supply voltage). Within the framework of this article, we will limit ourselves to: consideration of optimal systems of autonomous voltage inverter - induction motor (AVI – IM); for estimate the filter parameters in the system of AVI - IM, we determine the ripple coefficient and the amplitude of the ripple of the input current; Consider the question of conductive coupling of AVI - IM with a power source; consider pulsation reduction methods and increasing the frequency of the input current.