Verfahren zur Regelung eines Aggregats und Frequenzumrichter

摘要

The invention relates to the process for regulating a unit driven by a three-phase motor such as a pump or a compressor, including a side channel compressor, with feeding features like volume flow and differential pressure. The three-phase motor is preceded by a frequency converter, inside or after which the power current is measured. In order to improve the regulation process of such a unit, it is suggested to take into account the measured intensity of current when regulating a feeding feature.