Magnetic flux controls for permanent-magnet motor-generator

摘要

A magnetic flux control means for a motor-generator, in which an annular member(7, 7a, 7b, 7c) regulates the magnetic flux while the on-off operation of a switching means(34,34a,34b,314c) provides more than one constant voltage depending on the rpm of the rotor (3,3a,3b,3c) of permanent-magnet piece(5,5a,5b,5c).;A stator(4,4a,4b,4c) contains high-tension windings, low-tension windings and variable-voltage windings.;A controller(10, 10a, 10b, 10c) conducts the switching operation among the windings to produce any desired voltage of, for example a high-tension of 100V, a low-tension of 27V for automotive electrical equipment and a variable voltage for control of an actuator(9,9a,9b, 9c). The annular member may be arranged for angular movement with respect to the stator, either outside or inside the stator.