Hybrid-energized synchronous electric machine

Electrical generator or motor structure – Dynamoelectric – Rotary

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310156, 310162, 310261, H02K 2104

Patent

active

057316473

ABSTRACT:
A hybrid-energized synchronous machine includes a laminated stator core that is arranged in a magnetic yoke and is divided axially into at least two core halves between which there is a field coil, where the rotor of this machine is also divided in two halves, where each rotor half has pole parts that are provided with permanent magnets and those that are not provided with permanent magnets, where one rotor half is equipped with permanent magnets of one polarity (N) and the other rotor half is equipped with permanent magnets of the other polarity (S), and pole parts of both rotor halves that are equipped with permanent magnets are offset by one pole pitch with respect to each other. The synchronous electric machine is also provided with an electric field coil designed as a ring coil. Both scattering losses and line losses can be reduced due to the fact that rotor halves are arranged on rotor shaft with an axial distance between them, and field coil is inserted into the space between rotor halves. The exciter output needed to regulate the speed and voltage can be reduced by the fact that permanent magnets are inserted into receptacle holes provided in the laminated core of rotor halves, and core parts that are adjacent to the receptacle holes in the direction of the periphery of the rotor are connected to pole parts that are not provided with permanent magnets only by using saturation segments.

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