CN204316340U

CN204316340U - Single-phase and three-phase contactless automatic coupling voltage regulator

Info

Publication number: CN204316340U
Application number: CN201420513512.3U
Authority: CN
Inventors: 龚秋声
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-30
Filing date: 2014-08-30
Publication date: 2015-05-06
Anticipated expiration: 2024-08-30

Abstract

A kind of Contactless self-coupling voltage regulator, it has single-phase and three-phase, is single-phasely made up of filter capacitor C, filter inductance L, step-up auto-transformer T, master control electronic switch S1, afterflow electronic switch S2 and control circuit thereof.Master control electronic switch S1 is made up of 2 diodes and 2 triodes, and afterflow electronic switch S2 is made up of 2 unidirectional thyristors.Input 220 volts of alternating voltages of 2 ends, through master control electronic switch S1 copped wave, afterflow electronic switch S2 afterflow, LC filtered alternating voltage supply step-up auto-transformer T boosting, regulates triode V1 copped wave make-to-break ratio in master control electronic switch S1, can obtain the adjustable alternating voltage of single-phase 0 ~ 250V.Three-phase, by the Y-connection of 3 single-phase contactless automatic coupling voltage regulators, can obtain the adjustable alternating voltage of three-phase 0 ~ 420V.Compared with Contactless self-coupling voltage regulator, have structure simply, the advantage such as contactless continuously, be the renewal product of the automatic coupling voltage regulator that existing carbon brush regulates.

Description

Single-phase and three-phase contactless automatic coupling voltage regulator

[one] technical field the present invention relates to automatic coupling voltage regulator, relates in particular to certainly put automatic coupling voltage regulator by the nothing of alternating-current chopper circuit pressure regulation.

[two] background technology is single-phase: input ac voltage 220V, output AC voltage 0 ~ 250V contact automatic coupling voltage regulator and three-phase: input ac voltage 380V, output AC voltage 0 ~ 420V contact self-regulated voltage regulator, apply very extensive, their small-powers adopt ring structures, high-power employing pole structure, all there is the problem that the slow and carbon brush contact of manufacturing process complexity, governing speed has been damaged.Great renewal is not had over more than 100 year.

[three] summary of the invention the object of the invention is simplified structure, cancels carbon brush pressure regulation contact, transforms this series products upgrading automatic coupling voltage regulator manufacturing by power electronic technology.

The single-phase contactless automatic coupling voltage regulator of the design, by filter capacitor C, C1, filter inductance L, step-up auto-transformer T, master control bidirectional electronic switch S1, afterflow bidirectional electronic switch S2 and control circuit composition thereof, it is characterized in that: master control bidirectional electronic switch is made up of 4 diode D1 ~ D4 and 1 triode V1, the two-way sub-switch of afterflow is by 2 unidirectional thyristor V3, V4 forms, and has 2 ac input ends (1, 2), 2 ac output ends (1, 6), input 1 end (2) and filter capacitor C1 one end is exchanged, master control bidirectional electronic switch S1 one end connects, the master control bidirectional electronic switch S1 other end (4) and continuous bidirectional electronic switch S2 one end, filter inductance L one end connects, the filter inductance L other end (5) and filter capacitor C one end, step-up auto-transformer T centre tap connects, 1 termination (6) of step-up auto-transformer with exchange output 1 and hold and be connected, another 1 termination (1) of step-up auto-transformer inputs the other end with exchanging, exchange and export the other end, the filter capacitor C1 other end, the filter capacitor C other end, the afterflow bidirectional electronic switch S2 other end connects, at interchange input 2 end (1, 2) during voltage 220V, the triode make-to-break ratio in master control bidirectional electronic switch S1 is regulated, at interchange output 2 end (1, 6) 0 ~ 250V alternating voltage is exported.

The three-phase contactless automatic coupling voltage regulator of the design, it is by the Y-connection of 3 single-phase contactless automatic coupling voltage regulators, 1 is had to exchange input and AC voltage-stabilizing output public zero curve N, 3 three-phase alternating current input A1, B1, C1 and 3 three-phase alternating current output end of pressure-stabilizing A2, B2, C2, can export three-phase 0 ~ 420V alternating voltage has the single-phase 0 ~ 250V of public zero curve N to exchange burning voltage with three simultaneously, with the triode control signal make-to-break ratio regulation output voltage in adjustment 3 master controls two-way full control electronic switch S1A, S1B, S1C.

[four] appended drawings 1 is single-phase contactless automatic coupling voltage regulator main circuit of the present invention.Accompanying drawing 2 is three-phase contactless automatic coupling voltage regulator main circuits of the present invention, and it is by 3 the single-phase contactless automatic coupling voltage regulators Y-connection shown in accompanying drawing 1.

[five] embodiment accompanying drawing 1 is known: it is with 2 diode D1, D2 and 2 triode V1, V2 forms master control bidirectional electronic switch S1, with 2 unidirectional thyristor V3, V4 composition reads stream bidirectional electronic switch S2, triode copped wave on master control bidirectional electronic switch S1 and read stream bidirectional electronic switch S2 afterflow, 4, chopping voltage U14 is cut out at 1 two ends, through inductance L and the filtered voltage U 15 of electric capacity C, be exactly and exchange input 2 end (1, 2) same frequency is synchronous cuts control ratio by S1, regulate the alternating voltage of input step-up auto-transformer, alternating voltage U16 after step-up auto-transformer T boosts, the alternating voltage being connected to Contactless self-coupling voltage regulator exports 2 ends (1, 6), when the full conducting of master control bidirectional electronic switch S1, input 220V alternating voltage is raised to 250V and exchanges output by step-up auto-transformer T.When master control bidirectional electronic switch S1 contract fully, step-up auto-transformer T output voltage is zero, therefore, as long as regulate the make-to-break ratio of master control bidirectional electronic switch S1 just can realize the alternating voltage in output 2 end (1,6), the pressure regulation between 0 ~ 250V.

Also it is emphasized that the contactless self-regulated voltage regulator of the design, as long as voltage voltage regulator being exported 2 ends carries out negative feedback, the make-to-break ratio of master control electronic switch S1 should be controlled, pressure regulation can also be realized and export the stable of each point voltage.

Three-phase contactless automatic coupling voltage regulator shown in accompanying drawing 2,3 single-phase contactless automatic coupling voltage regulators Y-connection that it is shown by accompanying drawing 1 forms, it has 1 to exchange input and AC voltage-stabilizing exports public zero curve N, 3 three-phase alternating current input A1, B1, C1 and 3 three-phase alternating current output terminals A 2, B2, C2, three-phase 0 ~ 420V alternating voltage can be exported simultaneously and have three of public zero curve N single-phase 0 ~ 250V alternating voltages, with the make-to-break ratio regulation output voltage of the triode in adjustment 3 master controls two-way full control electronic switch S1A, S1B, S1C.

The present invention has that structure is simple, continuous stepless, contactless, precision advantages of higher, and they are carbon brush contact automatic coupling voltage regulator renewal products, have an economic benefit and social benefit.

Claims

1. single-phase contactless automatic coupling voltage regulator, by filter capacitor C, C1, filter inductance L, step-up auto-transformer T, master control bidirectional electronic switch S1, afterflow bidirectional electronic switch S2 and control circuit composition thereof, it is characterized in that: master control bidirectional electronic switch is made up of 4 diode D1 ~ D4 and 1 triode V1, the two-way sub-switch of afterflow is by 2 unidirectional thyristor V3, V4 forms, and has 2 ac input ends (1, 2), 2 ac output ends (1, 6), input 1 end (2) and filter capacitor C1 one end is exchanged, master control bidirectional electronic is opened and S1 one end connects, the master control bidirectional electronic switch S1 other end (4) and continuous bidirectional electronic switch S2 one end, filter inductance L one end connects, the filter inductance L other end (5) and filter capacitor C one end, step-up auto-transformer T centre tap connects, 1 termination (6) of step-up auto-transformer with exchange output 1 and hold and be connected, another 1 termination (1) of step-up auto-transformer inputs the other end with exchanging, exchange and export the other end, the filter capacitor C1 other end, the filter capacitor C other end, the afterflow bidirectional electronic switch S2 other end connects, at interchange input 2 end (1, 2) during voltage 220V, the triode make-to-break ratio in master control bidirectional electronic switch S1 is regulated, at interchange output 2 end (1, 6) 0 ~ 250V alternating voltage is exported.

2. three-phase contactless automatic coupling voltage regulator, comprise 3 single-phase contactless automatic coupling voltage regulators according to claim 1, it is characterized in that: the Y-connection of 3 single-phase contactless automatic coupling voltage regulators according to claim 1, 1 is had to exchange input and AC voltage-stabilizing output public zero curve N, 3 three-phase alternating current input A1, B1, C1 and 3 three-phase alternating current output end of pressure-stabilizing A2, B2, C2, can export three-phase 0 ~ 420V alternating voltage has the single-phase 0 ~ 250V of public zero curve N to exchange burning voltage with three simultaneously, with the triode control signal make-to-break ratio regulation output voltage in adjustment 3 master control bidirectional electronic switch.