External control excitation pole-changing three-phase motor

A technology of three-phase motor and excitation transformer, which is applied to electrical components, control systems, AC motor control, etc., and can solve the problems of component burnout, high product cost, and high price

Inactive Publication Date: 2016-01-27
李德生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the motors directly control the current or voltage and frequency of the main line package on-line. The frequency converter is mainly composed of electronic components. Damaged; the frequency converter is an online frequency conversion mode, and the product cost is high; the price of the frequency converter and the motor of this power is similar and high

Method used

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  • External control excitation pole-changing three-phase motor

Examples

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Effect test

Embodiment 1

[0016] Embodiment 1: A 40 kilowatt AC motor: excitation voltage 90V; current 5A, power=450VA. The active magnetic control system slidesheng only controls the power 450VA load, which is relatively easy in process structure, low in cost, and relatively stable in braking and speed regulation.

[0017] The structure of the present invention includes: excitation wire package, outer annular magnetizer, stator wire package, inner stator magnetizer, N / S magnetic pole, cutting magnetic force line direction 1, input port 1, rotor rotation direction, active magnetic control system slidesheng control port 1 , input port 2, magnetic force line direction 2, S / N magnetic pole, active magnetic control system slidesheng control port 2, active magnetic control system slidesheng, output port 1, output port 2, output port 3, output port 4, output port 5, output port 6 etc.

[0018] The external control excitation pole-changing three-phase motor is composed of 1. excitation wire package, 2. oute...

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PUM

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Abstract

The invention discloses an external control excitation pole-changing three-phase motor. The external control excitation pole-changing three-phase motor comprises 1. excitation coils, 2. an annular magnetizer, 3. a stator coil, 4. an internal stator magnetizer and 14. an active magnetic control system lidesheng. The internal control information in 14. the active magnetic control system lidesheng is respectively output through 9. a control port 1 for the active magnetic control system lidesheng, and is output through 7. an input port 1 and 13. a control port 2 for the active magnetic control system lidesheng, and supplies power for 1. the excitation coils through 10. an input port 2; as the 1. excitation coils obtain power, an N / S changeable heteropolarity magnetic field is generated; a 3. stator coil is cut by the changeable heteropolarity magnetic field generated from the 1. excitation coils and a rotor; the 3. Stator coil generates AC voltage by means of cutting of a magnetic line; the AC voltage passes through 15. an output port 1 and 16. an ouput port 2; and by means of complete closing of 17. an output port 3, 18. an output port 4, 19. an output port 5 and 20. an output port 6, the magnetic field is cut so that speed adjusting and driving can be realized by means of reverse cutting of magnetic field.

Description

technical field [0001] The present invention relates to an externally controlled excitation type pole change technology for multi-field applications such as excitation pole change, and in particular to a device that uses an outer annular magnetizer to control the magnitude of the current in the excitation wire; And other devices that use the drive motor and adjust the speed at any time (referred to as "external and internal control excitation pole-changing three-phase motor"). Background technique [0002] At present, the motors directly control the current or voltage and frequency of the main line package on-line. The frequency converter is mainly composed of electronic components. Damage; the frequency converter is an online frequency conversion mode, and the product cost is high; the price of the frequency converter and the motor of this power is similar and high. Contents of the invention [0003] The invention provides an externally controlled excitation pole-changin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/20
Inventor 李德生
Owner 李德生
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