Parallel multi-winding motor

Abstract

The invention relates to a parallel multi-winding motor, which comprises a stator and a rotor, wherein the stator and the rotor are arranged in a casing. The parallel multi-winding motor is characterized in that a plurality of sets of functional windings are wound on the stator in parallel. When all sets of functional windings are connected with an external driver or an alternating current power supply, all the functional windings independently enable the motor to run normally. When a motor structure system is operated, if one set of the windings breaks down, the other windings can maintain normal operation of the system under the condition that the fault winding is not involved in, thereby greatly improving reliability and continuous operation ability of the system. When the parallel multi-winding motor is applied to a high-power motor, a system driving mechanism is simplified, and reliability is improved greatly.

Description

technical field [0001] The invention belongs to the technical field of motor application and relates to a parallel multi-winding motor. Background technique [0002] Traditional motors, especially medium and high-power motors, are an important component of the drive system. There are two system configuration methods in practical applications. One is to use a single large-capacity driver to directly drive the motor, and the other is to use multiple small-capacity drives. The drivers drive the motors in parallel (combining multiple small drives into one large drive is of the same type as this approach). In the first way, the driver can be directly connected to the motor, and the structure is simple. However, because the traditional motor has a single winding structure, the reliability of both the large-capacity driver and the traditional motor will be reduced to varying degrees in complex application environments. If there is a problem with any of the windings or the driver, ...

AI Technical Summary

Problems solved by technology

In the first way, the driver can be directly connected to the motor, and the structure is simple. However, because the traditional motor has a single winding structure, the reliability of both the large-capacity driver and the traditional motor will be reduced to varying degrees in complex application environments. If there is a problem with any of the windings or the drive, the system will be paralyzed and cannot work at all.

In the second way, each small-capacity driver needs to be connected to the motor through a reactance network, the structure is complex, and the reliability is not high in a complex application environment, especially if there is a problem with the motor, the system will not work at all

To sum up, the driving system composed of traditional motors is either not reliable or the system cannot work at all in complex application environments and special requirements application environments.

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