Rotor double-winding pole-changing asynchronous starting vernier motor
A technology for asynchronous starting and vernier motors, which is applied to the rotating parts of the magnetic circuit, the shape/style/structure of winding conductors, and electromechanical devices, etc. It can solve the problems that the starting performance and steady-state performance of asynchronous starting vernier motors cannot be balanced, and achieve Increased torque density, high efficiency, and steady-state performance
Active Publication Date: 2019-04-23
HUAZHONG UNIV OF SCI & TECH
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Abstract
The invention discloses a rotor double-winding pole-changing asynchronous starting vernier motor which comprises a stator and a rotor. The stator comprises a stator core and stator windings. The rotorcomprises a rotor core, rotor damping windings, rotor starting windings and permanent magnets. The stator iron core is annular, and the inner ring surface of the stator iron core is provided with a plurality of open slots used as stator slots along the circumferential direction and used for accommodating stator windings. The rotor iron core is coaxially sleeved with the stator iron core. A plurality of rotor grooves are formed in the outer surface, opposite to the inner ring surface of the stator iron core, of the rotor iron core in the circumferential direction. The tops of the rotor groovesare used for containing rotor damping windings, and the bottoms of the rotor grooves are used for containing rotor starting windings. The plurality of permanent magnets are arranged in the rotor ironcore. According to the rotor double-winding variable-pole asynchronous starting vernier motor provided by the invention, the double-winding rotor is adopted, and a pole changing mode is utilized. Therefore, the electromagnetic torque exceeding a common asynchronous starting permanent magnet motor is output during steady-state operation. Meanwhile, the starting performance can be ensured, and thesteady-state performance can be also considered.
Application Domain
Magnetic circuit rotating partsMagnetic circuit stationary parts +1
Technology Topic
PhysicsElectromagnetic torque +2
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- Experimental program(1)
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