Asynchronous electric drive with an additional switch in the DC link of the frequency converter

摘要

Regulation of power on an inverter entrance - one of key tasks in the modern electric drive. In this article the way of regulation of power on an inverter entrance by means of the additional switchboard in a link of a direct current for the electric drive on the basis of the asynchronous engine with a short-circuited rotor (ADKZ) with vector management, with relay management of transistor keys of AIT was considered. Comparison of frequency of switching of keys of the inverter is carried out, at various levels of restriction of current in a link of a direct current.