Internal control excitation pole-changing three-phase motor

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

Inactive Publication Date: 2016-02-24
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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  • Internal control excitation pole-changing three-phase motor

Examples

Experimental program
Comparison scheme
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, inner I-shaped magnetizer, output wire package, outer output 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 internal control excitation pole-changing three-phase motor is composed of 1. excitation wire package, 2. inne...

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Abstract

The invention discloses an internal control excitation pole-changing three-phase motor. The internal control excitation pole-changing three-phase motor is composed of an 1 excitation solenoid, an 2 internal I-shaped magnetizer, a 3 stator solenoid, an 4 external stator magnetizer and an 14 active magnetic control system lidesheng. The built-in control information of the 14 active magnetic control system lidesheng is respectively outputted by an 9 active magnetic control system lidesheng control port 1 and outputted by an 7 input port 1 and an 13 active magnetic control system lidesheng control port 2 to supply power to the 1 excitation solenoid through an 10 input port 2. The 1 excitation solenoid is electrified to generate an N/S variable hetero-polarity magnetic field. The variable hetero-polarity magnetic field generated by the 1 excitation solenoid and a rotor synchronously cut the 3 stator solenoid. The magnetic lines of force of the 3 stator solenoid are cut to generate AC voltage passing through an 15 output port 1 and an 16 output port 2. An 17 output port 3, an 18 output port 4, an 19 output port 5 and an 20 output port 6 are completely closed to generate a cutting magnetic field. The objective of speed regulation and driving can be realized by utilizing a reverse cutting magnetic field.

Description

technical field [0001] The present invention relates to an internally controlled excitation pole changing technology for multi-field applications such as excitation pole changing, and in particular to a device that uses an internal I-shaped magnetizer to control the magnitude of the current in the excitation wire; A device that uses a drive motor and adjusts the speed at any time (referred to as "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 internally controlled excitation pole-changing three-phase motor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P25/20
CPCH02P25/20
Inventor 李德生
Owner 李德生
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