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Non-contact commutator for speed and voltage regulator of winding electric motor rator

A stator voltage and speed regulation and control device technology, applied in the electronic field, can solve the problems of slow motor start-up response, long action pull-in time, and large contactor volume, and achieve the effects of fast start-up response, low cost, and small size

Inactive Publication Date: 2005-07-27
鞍山起重控制设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pull-in time of the contactor is 80-90ms. The motor starts to respond slowly. In the motor speed control device, the commutation circuit is realized by a contactor, which has defects such as large volume, expensive price, and long action pull-in time.

Method used

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  • Non-contact commutator for speed and voltage regulator of winding electric motor rator
  • Non-contact commutator for speed and voltage regulator of winding electric motor rator
  • Non-contact commutator for speed and voltage regulator of winding electric motor rator

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Embodiment Construction

[0010] The present invention is used for the non-contact commutator of the stator voltage regulation and speed regulation control device of the winding type motor, which is realized in this way, and will be described in detail below in conjunction with the accompanying drawings. See figure 1 , the non-contact commutator circuit used for the stator voltage regulation and speed regulation control device of the winding type motor is: the phase shift pulse trigger signal is input from the six terminals of U+, U-, V+, V-, W+, W- respectively, and the control The signals are respectively input from 5A and 5BC, and the relay contacts of the control relays K1, K2, K3, and K4 respectively control two sets of six-phase trigger pulse signal power supplies; terminal 3ABC is the zero-current commutation signal input via one end of the resistors R34, R35, and the resistor R35 The other end is grounded, the other end of resistor R34 is connected to pin 8 and pin 9 of integrated block D2, and...

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Abstract

The features of the invention includes following points:the phase shift pulse triggering signals are inputted from six ends of U+, U-,V+,V-,W+ W-, and are compared with zero current signal and make conversion; U+, U- are common ports. V+,V-,W+,W- two of each are two group output. The conversion of two groups signals are controlled by interlocking of relay contacts. The coil of relay is controlled by rising and falling signals, which is implemented through non touch commutator circuit used in variable voltage speed control device of stator of motor, signal conversion circuit and main loop circuit.

Description

technical field [0001] The invention belongs to the field of electronic technology, and relates to a non-contact commutator used for a stator voltage regulation and speed regulation control device of a winding type motor. Background technique [0002] At present, in the prior art, the reversing of the wound motor is achieved by means of a contactor. The pull-in time of the contactor is 80-90ms, and the motor starts to respond slowly. In the motor speed control device, the commutation circuit is realized by a contactor, which has defects such as large volume, expensive price, and long action pull-in time. Contents of the invention [0003] The present invention overcomes the above existing defects, and aims to provide a non-contact commutator for a stator voltage regulation and speed regulation control device of a winding type motor in order to solve the problem of the non-contact commutation of the motor speed regulating device. [0004] Brief description of the content o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P1/40
Inventor 田刚
Owner 鞍山起重控制设备有限公司