Аннотация:
The possibility of creating of modifications of high-phase asynchronous motors based
on standard three-phase ones is justified. The authors considered a number of power circuits of
controlled electrical drives in which high-phase power supply of induction motors is provided.
The drives operation to certain by value and nature the load as well as the given adjustment range
is analyzed. As a result of mathematical modeling it is determined that the overheating
temperatures of stator windings of considered high-phase motors do not exceed the permissible
values corresponding the heat resistance insulation class. Comparison of technical and economic
parameters of the considered circuits and motors making it possible to realize an acceptable
determination of options depending on reasonable selection criterion is carried out. The
regularities of changes of the phase currents of high-phase motors in the adjustment range are
determined. The change in the vibro-acoustic characteristics in static and dynamic modes is
investigated. Reduction of these indicators in motors with the number of phases greater than
three is determined. The authors considered a number of circuits of adjustable electric drives in
which two-block rectifiers and high-phase induction motors are used. Automated optimal design
of adjustable six-phase induction motors for three project tasks is carried out. Through
parametric optimization acceptable values of variable parameters in two design criteria are
found.
