CN207039200U - A kind of new phase-change switch formula three-phase current unbalance controlling device - Google Patents

A kind of new phase-change switch formula three-phase current unbalance controlling device Download PDF

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Publication number
CN207039200U
CN207039200U CN201721001632.5U CN201721001632U CN207039200U CN 207039200 U CN207039200 U CN 207039200U CN 201721001632 U CN201721001632 U CN 201721001632U CN 207039200 U CN207039200 U CN 207039200U
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China
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phase
communication module
change switch
main control
switch
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Inventor
黄海宇
王莉
马庆华
潘洲
潘一洲
陈琛
黄岳平
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Hangzhou Cheng Cheng Power Polytron Technologies Inc
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Hangzhou Cheng Cheng Power Polytron Technologies Inc
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/50Arrangements for eliminating or reducing asymmetry in polyphase networks

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Abstract

It the utility model is related to Electric control field, a kind of more particularly to new phase-change switch formula three-phase current unbalance controlling device, including Main Control Tank, some phase-change switches and single-phase load, Main Control Tank includes processing module and the first communication module, phase-change switch includes combination switch, current transformer and the second communication module, Main Control Tank connects the first communication module, the current transformer is located at three-phase input end, combination switch one end connects three-phase input end, the other end connects single-phase load, second communication module one end connects combination switch, another end communication connects the first communication module, combination switch includes voltage transformer, control module and relay IGCT.The beneficial effects of the utility model are:When wireless telecommunications are disturbed or Main Control Tank failure, phase-change switch remain to continue to run with work, the utilization rate, reliability and stability of three-phase current unbalance controlling device are added;Intelligent terminal can receive current data information of the first communication module upload etc..

Description

A kind of new phase-change switch formula three-phase current unbalance controlling device
Technical field
Electric control field is the utility model is related to, more particularly to a kind of new phase-change switch formula three-phase current unbalance is controlled Manage device.
Background technology
Phase-change switch be a kind of integrated modern test and control, power electronics, wireless telecommunications, Automated condtrol, etc. advanced technology be The three-phase current unbalance controlling device of one, it is made up of 1 Main Control Tank and several phase-change switches, have be lost it is low, no The advantages that powered adjustment three-phase load, three-phase current unbalance regulation effect are good, small volume.Due to Main Control Tank and phase-change switch it Between by GPRS wireless telecommunications, and at present in low-voltage network system, the more serious phenomenon of three-phase imbalance is primarily present in agriculture Entoilage area, this area is with a varied topography, signal difference, radius of electricity supply are generally longer, so easily there is GPRS jitters, easily quilt Phenomena such as interference, cause the uncontrollable phase-change switch of Main Control Tank, make equipment can not normal work, reduce utilization rate of equipment and installations and make With value, it is impossible to meet the needs of market is growing.
Therefore, designer of the present utility model in view of it is above-mentioned the defects of, by concentrating on studies and designing, comprehensive low pressure is matched somebody with somebody The actual conditions and associate power knowledge of net, research and design go out a kind of new phase-change switch formula three-phase current unbalance and administer dress Put, its phase-change switch has based on independent control function of the end three-phase voltage as switching foundation, to overcome drawbacks described above.
The content of the invention
The purpose of this utility model is to provide a kind of new phase-change switch formula three-phase current unbalance controlling device, its Utilization rate and reliability are higher.
To solve the problems, such as appeal, the utility model discloses a kind of new phase-change switch formula three-phase current unbalance to administer dress Put, including Main Control Tank, some phase-change switches and single-phase load, the Main Control Tank include processing module and the first communication mould Block, the phase-change switch include combination switch, current transformer and the second communication module, the communication of Main Control Tank connection first Module, the current transformer are located at three-phase input end, and described combination switch one end connects three-phase input end, and other end connection is single Phase load, described second communication module one end connect combination switch, and another end communication connects the first communication module, described compound to open Pass includes voltage transformer, control module and relay IGCT, and described voltage transformer one end connects three-phase input end, separately One end link control module, the control module connect relay IGCT.
Preferably, in addition to intelligent terminal, the first communication module wireless connection intelligent terminal.
Preferably, the phase-change switch also includes breaker of plastic casing, and the breaker of plastic casing connects combination switch.
The beneficial effects of the utility model are:When wireless telecommunications are disturbed or Main Control Tank failure, phase-change switch remain to continue Work is run, adds the utilization rate, reliability and stability of three-phase current unbalance controlling device;Intelligent terminal can receive Current data information that first communication module uploads etc..
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the utility model service chart in distribution network systems;
Fig. 2 is Tthe utility model system connection diagram;
Fig. 3 is the utility model module connection diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is further described, but the utility model and unlimited In these embodiments.
With reference to accompanying drawing 1, wherein, distribution transformer 1 provides electric energy, and 2 voltage is designated as U at the distribution transforming A phase low tension outlets2, 3 voltage is designated as U at the phase-change switch wiring of the circuit A phases end3, " at the distribution transforming A phase low tension outlets " and " circuit A phases At the phase-change switch wiring of end " between circuit 4 all-in resistance be R, average current I, the phase-change switch 5 is apparatus system Execution module, end three-phase voltage and rear end single-phase load currents are can detect, and commutation operation is carried out to end single-phase load.
Remembered as described above, U can be obtained3=U2- IR, it is known that U during normal operation in supplying power allocation system2, R be basically unchanged, Then U3With the linear inverse relations of I, i.e. there is linear relationship in circuit three-phase current with end three-phase voltage.Thus as the master Control between case and the phase-change switch can not normal communication when, the phase-change switch is voluntarily according to end three-phase voltage as switching Control parameter has certain reasonability.Moreover this decision logic is intended only as Back Up Option, make up the Main Control Tank failure or The GPRS wireless telecommunications the defects of phase-change switch is stopped when being disturbed, substantially increase utilization rate, the reliability of device And stability.
Referring to Fig. 2-3, Fig. 2 shows system connection diagram of the present utility model, and Fig. 3 is the connection of the utility model module Schematic diagram.
The Main Control Tank 6 is the control terminal of whole device, and it includes processing module and the first communication module;The end Hold the single-phase user in end that single-phase load 7 is distribution network systems;GPRS wireless telecommunications 8 between " Main Control Tank " and " phase-change switch " Purpose is to realize that " Main Control Tank " is connected with the communication between " phase-change switch ", information exchange;The three-phase current samples transformer 9 For sampling of the Main Control Tank to the three-phase total current of the distribution transformer, in this, as the phase-change switch switching according to According to making three-phase total current always remain at the state closest to three-phase equilibrium;The three-phase and four-line 10 is A, B, C of distribution network systems Three-phase firewire and N phase zero lines, the phase-change switch are exactly the switching between A, B, C three-phase firewire, make the end single-phase load 7 Can free linked network between A, B, C three-phase firewire.
There was only a Main Control Tank per covering device, it is responsible for gathering the various status informations and data of whole device, leads to The logical operation for crossing processing module sends the manipulation that whole device is completed in various instructions, and it detects the voltage x current with network bus and believed Number;The load current data that phase-change switch uploads, the computational load degree of balance and distribution situation are received, is calculated by analyzing to each The phase-change switch sends commutation order;Running status and the fault message that the phase-change switch uploads are received, then makes phase The control operation answered.
Phase-change switch is the branch and executing agency of device, can spirit according to the capacity of distribution transforming and the distribution situation difference of load The capacity and quantity living for selecting the phase-change switch.Phase-change switch includes combination switch, current transformer and the second communication mould Block, the Main Control Tank connect the first communication module, and the current transformer is located at three-phase input end, and described combination switch one end connects Three-phase input end, other end connection single-phase load are connect, described second communication module one end connects combination switch, and another end communication connects Connect the first communication module, the first communication module wireless connection intelligent terminal.
Combination switch includes voltage transformer, control module, breaker of plastic casing and relay IGCT, and the voltage is mutual Sensor one end connects three-phase input end, other end link control module, and the control module connects relay IGCT, the modeling Case circuit breaker connects combination switch.Voltage transformer is responsible for gathering rear end single-phase load currents and three-phase voltage data, with itself Status information be uploaded to the Main Control Tank by GPRS wireless telecommunications together;The commutation order for receiving the Main Control Tank is changed Mutually operate;The error protection order for receiving the Main Control Tank is operated accordingly;Show the running state information of itself.When So, the phase-change switch can not the normal communication between the Main Control Tank when, the phase-change switch is switched to automatic mode, from The dynamic end three-phase voltage according to sampling carries out switching work as switching control parameter.
Intelligent terminal can receive current data information of the first communication module upload etc., realize the long-range of data and adopt Collection.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (3)

1. a kind of new phase-change switch formula three-phase current unbalance controlling device, it is characterised in that including Main Control Tank, some commutations Switch and single-phase load, the Main Control Tank include processing module and the first communication module, and the phase-change switch includes compound Switch, current transformer and the second communication module, the Main Control Tank connect the first communication module, and the current transformer is located at Three-phase input end, described combination switch one end connect three-phase input end, other end connection single-phase load, second communication module One end connects combination switch, and another end communication connects the first communication module, and the combination switch includes voltage transformer, control mould Block and relay IGCT, described voltage transformer one end connect three-phase input end, other end link control module, the control Molding block connects relay IGCT.
2. new phase-change switch formula three-phase current unbalance controlling device according to claim 1, it is characterised in that:Also wrap Include intelligent terminal, the first communication module wireless connection intelligent terminal.
3. new phase-change switch formula three-phase current unbalance controlling device according to claim 1, it is characterised in that:It is described Phase-change switch also includes breaker of plastic casing, and the breaker of plastic casing connects combination switch.
CN201721001632.5U 2017-08-11 2017-08-11 A kind of new phase-change switch formula three-phase current unbalance controlling device Active CN207039200U (en)

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Application Number Priority Date Filing Date Title
CN201721001632.5U CN207039200U (en) 2017-08-11 2017-08-11 A kind of new phase-change switch formula three-phase current unbalance controlling device

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Application Number Priority Date Filing Date Title
CN201721001632.5U CN207039200U (en) 2017-08-11 2017-08-11 A kind of new phase-change switch formula three-phase current unbalance controlling device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108347061A (en) * 2018-04-28 2018-07-31 淄博康润电气有限公司 Intelligent positioning commutation point device and method in three-phase imbalance improvement
CN108427071A (en) * 2018-05-15 2018-08-21 国网福建省电力有限公司电力科学研究院 A kind of phase-change switch intelligent detection device and method
CN111146790A (en) * 2020-01-03 2020-05-12 深圳供电局有限公司 Commutation switch control system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108347061A (en) * 2018-04-28 2018-07-31 淄博康润电气有限公司 Intelligent positioning commutation point device and method in three-phase imbalance improvement
CN108427071A (en) * 2018-05-15 2018-08-21 国网福建省电力有限公司电力科学研究院 A kind of phase-change switch intelligent detection device and method
CN108427071B (en) * 2018-05-15 2024-01-23 国网福建省电力有限公司电力科学研究院 Intelligent detection device and method for phase change switch
CN111146790A (en) * 2020-01-03 2020-05-12 深圳供电局有限公司 Commutation switch control system
CN111146790B (en) * 2020-01-03 2021-10-12 深圳供电局有限公司 Commutation switch control system

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