The paper deals with the issues of comparative analysis quality speed-controlled electric drives permanent magnet motors, which are most often used in complex technological machines. functional and structural diagrams this type presented, built according to circuits different number current (with three sensors, one sensor without sensors) automated production. Simulation operation accordance re...

Improving the operational reliability of nuclear power plants, combined heat and plants (CHP), as well oil gas pipelines is a priority task in development variable-speed drive for lock valves used at these facilities. This paper analyzes technical requirements such devices: motor has been selected, its electrical equilibrium moment equations have obtained; recommendations selection kinematic sc...