MODULAR SYNCHRONOUS ELECTRIC MACHINE Russian patent published in 2011 - IPC H02K19/10 H02K19/16 H02K29/00 H02K1/06 

FIELD: electricity.

SUBSTANCE: invention refers to design of synchronous electric machines with slip rings of any powers - from tenth parts of W to hundreds of kW, and can be used in automation systems as traction controlled and non-controlled electric drives, synchronous electric generators, multi-phase power supplies with electric current. The proposed modular synchronous electric machine includes stator the armature core of which consists of isolated electrotechnical steel sheets with high magnetic permeability and has express poles with coil w-phase winding of armature, each coil of which is arranged on the appropriate express pole of armature, one per a pole, and rotor containing charged inductor core made of electrotechnical steel sheets with high magnetic permeability; the above inductor has express poles and coil excitation winding, and each coil of which is arranged on the appropriate express pole of inductor, one per a pole. Electric connection of excitation winding with source of constant (rectified) voltage is performed through sliding contact by means of brush-and-spring assembly with brushes. When direct (rectified) current flows via excitation winding of inductor, alternating polarity of N - S magnetic inductor poles appears in air gap. At that, certain ratios are fulfilled between the number of express armature poles, number of phases of t-phase armature winding, number of express poles in armature module phase, number of modules and number of express poles of inductor. Available brush-and-contact assembly allows feeding the excitation winding of inductor with considerable constant (rectified) current and smoothly controlling the output parameters of synchronous electric machine.

EFFECT: high energy data, high specific torque moment on the shaft in electric motor mode and high specific power in electric generator mode of modular synchronous electric machine, increasing electromagnetic and thermal loads, absence of restrictions regarding the design of the above high-duty electric machines with larger overall dimensions.

6 cl, 5 dwg