A squirrel cage conductor rotor brushless power feedback type permanent magnet governor

Abstract

The invention discloses a squirrel-cage conductor rotor brushless power feedback type permanent magnet governor, which comprises an input shaft connected to a prime mover and an output shaft connected to a load arranged on the same central shaft, and a permanent magnet rotor is pierced on the input shaft , the output shaft is pierced with a squirrel-cage conductor rotor that can rotate concentrically; the outer side of the conductor rotor is surrounded by a three-phase winding stator fixed to the casing; the input shaft is connected to the casing through the first bearing, and the output shaft passes through The second bearing is connected with the casing, and the input shaft is connected and supported with the output shaft through the third bearing. This structure can realize the brushless transmission of the conductor rotor slip power to the stator side, realize the efficient operation of the speed control system within a wide speed control range, and improve the energy saving efficiency of the speed control system.

Description

technical field [0001] The invention belongs to the field of permanent magnet motors, in particular to a squirrel-cage conductor rotor brushless power feedback type permanent magnet governor. Background technique [0002] With the promotion and application of high-performance permanent magnet materials, the permanent magnet speed control technology, which has developed rapidly, is a new type of speed control and energy-saving technology for motor drive systems applied between the prime mover and the load. The speed-regulating permanent magnet coupler has a good energy-saving effect, reduces operating costs, and can also realize the soft start and soft stop functions of the motor. It can operate in harsh environments such as flammable, explosive, humid, and high dust content, and it is a mechanical structure that can adapt to situations such as unstable power grid quality and impact loads caused by current changes. Mainly used in the chemical industry, petrochemical industry...

AI Technical Summary

Problems solved by technology

In addition, the slip power between the two rotors of the traditional permanent magnet eddy current speed control device is consumed in the form of heat energy through the eddy current loss of the conductor rotor conductor. On the one hand, cooling devices must be added to solve the problem of heat dissipation; on the other hand, the slip power It is converted into heat energy and consumed, which reduces the effect of speed regulation and energy saving

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