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Intelligent large-torque starting method of wound-type motor

A starting method, winding technology, applied in the direction of motor generator/starter, single multi-phase induction motor starter, etc., to achieve the effect of high motor energy conversion rate, large starting torque and high power factor

Inactive Publication Date: 2014-08-27
HEBEI UNIV OF ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-torque intelligent starting method for a wound-type motor, which solves the problem that the existing motor starting resistance throwing method does not change with the external load
It is a high torque intelligent starting method for winding motors

Method used

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  • Intelligent large-torque starting method of wound-type motor
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  • Intelligent large-torque starting method of wound-type motor

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] The mechanical characteristics of the motor for speed regulation by using the rotor series resistance of the wound asynchronous motor, the mechanical characteristics of the motor are shown in the figure figure 1 As shown, curve 1 in the figure is the inherent characteristics of the motor, that is, the rotor winding is directly short-circuited when starting, without any external resistance or the mechanical characteristics when the external resistance is equal to zero; curve 2 is the artificial mechanical characteristics of the motor, that is, in the winding type asynchronous motor The mechanical characteristics of the rotor circuit after a certain value of resistance is connected in series, also called artificial mechanical characteristics, referred to as artificial characteristics. from figure 1 It can be seen from the figure that re...

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Abstract

The invention discloses an intelligent large-torque starting method of a wound-type motor. According to the method, multiple stages of loop resistance systems are connected in series on a rotor of the wound-type motor , and the rotating speed of the motor is controlled according to the number of accessed loop resistors; a speed test device is arranged on the rotor of the wound-type motor and conducts real-time measurement on the rotating speed of the motor; the speed test device and the multiple stages of loop resistance systems are connected with a single-chip microcomputer system respectively, and the single-chip microcomputer system controls the number of the accessed loop resistors after processing the real-time rotating speed information of the motor. The intelligent large-torque starting method of the wound-type motor has the advantages that the resistance accessing to the motor system is controlled intelligently in the starting process through speed measurement of the single-chip microcomputer.

Description

technical field [0001] The invention belongs to the technical field of rotor series resistance starting of a wire-wound asynchronous motor, and relates to a large-torque intelligent starting method of a wire-wound motor. Background technique [0002] The starting of the motor is the prerequisite and necessary process for the motor to enter the working state. Starting from the current technology, the starting of the motor can be roughly divided into the following starting methods: [0003] ①Full-voltage starting: including full-voltage starting and transformer-motor unit, ②Decreased voltage starting: including auto-coupling step-down, resistance step-down, phase-controlled step-down, ③decreasing compensation soft start, ④variable frequency start, ⑤mechanical starting method: Small tractor with large overrunning clutch, ⑥Wound-type asynchronous motor rotor series resistor start, ⑦Wound-type asynchronous motor rotor series frequency-sensitive rheostat start, ⑧Wound-type asynch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P1/26
Inventor 于佐东杨庆娥杨庆申
Owner HEBEI UNIV OF ENG
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