Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Mathematical modeling of process of an active filtration of the higher harmonious components of a current in system “the frequency Converter – the Asynchronous engine” Meshcheriakov V.N., Shein M.A. In this article the way of construction of the control system by the active filter of the electric power adapted for the electric drive of an alternating current, different simplicity and high efficiency is offered. Key words: the active filter, the alternating current electric drive, the frequency converter, harmonious distortions. E-mail: shein07@mail.ru