CONTROL AND REGULATION PROCESS OF AN ASYNCHRONOUS MACHINE POWERED BY A STATIC FREQUENCY CONVERTER WITH INTERMEDIATE CIRCUIT

摘要

P Method for controlling and regulating an asynchronous machine using a static frequency converter with intermediate circuit, comprising a static mains converter, an intermediate circuit delivering a slave current and a self-switched inverter. /P P The frequency and time timing of the inverter 3 is carried out, over its upper frequency range, with use of the voltage of the asynchronous machine 4 as a synchronization signal. Separate timing of the inverter is carried out on its lower frequency range, for which a sufficiently high synchronization voltage is not available. /P