CN106505594A - A kind of three-phase imbalance adjusts phase-change switch and method - Google Patents
A kind of three-phase imbalance adjusts phase-change switch and method Download PDFInfo
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- CN106505594A CN106505594A CN201611070715.XA CN201611070715A CN106505594A CN 106505594 A CN106505594 A CN 106505594A CN 201611070715 A CN201611070715 A CN 201611070715A CN 106505594 A CN106505594 A CN 106505594A
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- phase
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- igbt device
- commutation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
Abstract
The invention discloses a kind of three-phase imbalance adjusts phase-change switch and method, it is therefore intended that, reduce threephase load and transformer loss that three-phase imbalance causes, improve power supply quality and power supply reliability, the technical scheme adopted by apparatus of the present invention for：Including three phase connections being arranged in housing, IGBT device parallel with one another and catalyst are respectively connected with per phase connection, IGBT device includes that two mutually antiparallel IGBT pipes, the IGBT device and catalyst are connected to trigger board, and trigger board is connected to master control system.
Description
Technical field
The invention belongs to electric and electronic technical field, and in particular to a kind of three-phase imbalance adjusts phase-change switch and method.
Background technology
In low-voltage network system, there is substantial amounts of single-phase, out-of-balance load, three-phase load runs change at random, this
A little loads can make distribution system produce three-phase imbalance, cause the imbalance of electric power system three-phase voltage, electric current, produce negative phase-sequence electricity
Pressure and negative-sequence current, reduce power quality, affect the normal electricity consumption of user when serious, while increasing circuit and transformator damage
Consumption, reduces power supply reliability, or even can cause large-area power-cuts, the serious consequence such as the neutral conductor blows.
The device for being applied to three-phase imbalance improvement at first is switching A.C. contactor, and this is a kind of traditional load switching
Mode, as the phase place of three-phase alternating current is mutually 120 °, controls to A.C. contactor switching, there is theoretically no optimal performance phase
Site so that when it puts into or cuts off electrical network, the transient process of a transient state will be produced,；When capacitive load is switched, due to holding
Property load voltage is unable to transition, during A.C. contactor switching electrical network, as its phase point is random, so amplitude can be produced very
Greatly, the very high surge current of frequency.
With the development and popularization of power electronic devices application, later people develop by IGCT for core IGCT
Switch.Operationally IGCT on-state voltage drop is about 1V or so, and on-state loss is larger, needs to install radiator or forced air cooling dress additional
Put to avoid the thermal breakdown of PN junction, while IGCT is very sensitive to voltage change ratio (dv/dt), run into switching overvoltage and thunder
The situation for the voltage jump such as hitting is easy to mislead and damage of being shoved.
Content of the invention
In order to solve the problems of the prior art, the present invention proposes a kind of to reduce the three-phase that three-phase imbalance causes and bear
Carry and transformer loss, the three-phase imbalance for improving power supply quality and power supply reliability adjusts phase-change switch and method.
In order to realize that object above, the technical solution adopted in the present invention be：
A kind of three-phase imbalance adjusts phase-change switch, including three phase connections being arranged in housing, is all connected with per phase connection
There are IGBT device parallel with one another and catalyst, IGBT device to include two mutually antiparallel IGBT pipes, the IGBT device
Trigger board is connected to catalyst, trigger board is connected to master control system.
The trigger board is zero passage commutation trigger board.
The commutation time of the trigger board is less than or equal to 6.6ms.
M57962AL circuit of the trigger board using MIT's production.
IGZ100N65H5 of the IGBT pipes using the production of company of German Infineon.
DUS-380/C model master control system of the master control system using CLP Purui Technology Co., Ltd's production.
A kind of three-phase imbalance adjusts phase change method, comprises the following steps：
1), after power-up initializing, master control system selects electricity operation in acquiescence work phase, by triggering plate closing acquiescence work
The catalyst of phase, gives tacit consent to the IGBT device locking in work phase and non-default work phase, and acquiescence work mutually normally runs backward main
Control system uploads operation information；
2) after commutation order is connected to, master control system controls the IGBT of acquiescence work phase to master control system by trigger board first
Break-over of device, disconnects the catalyst of acquiescence work phase, is then powered off the IGBT device for giving tacit consent to work phase, and commutation work phase is treated in conducting
IGBT device, finally closure treat commutation work phase catalyst, shut-off treat commutation work phase IGBT device, treat commutation work
Xiang Shang electricity, uploads operation information to master control system after normal operation, completes commutation.
Compared with prior art, apparatus of the present invention are all provided with two-way IGBT device on every phase connection, and two-way IGBT device is simultaneously
Catalyst is associated with, and two-way IGBT device includes two mutually antiparallel IGBT pipes, state is met in power distribution network tri-phase unbalance factor
When mark is required, phase-change switch is maintained at work phase, and work cross streams catalyst closes a floodgate, IGBT device locking；Inoperative cross streams
Catalyst is in gate-dividing state, IGBT device locking.When system tri-phase unbalance factor exceedes Standard, phase-change switch can be cut
Low-load phase is shifted to, the IGBT device conducting of work phase, work cross streams catalyst separating brake, the IGBT device shut-off of work phase are low negative
Phase IGBT device triggering and conducting is carried, low-load cross streams catalyst closes a floodgate, low-load phase IGBT device locking, it is to avoid tradition is changed
The heating problem that semiconductor device longtime running brings in mutually switching, can be adjusted to power distribution network three-phase imbalance, make three
Phase branch road mean allocation load, reduces threephase load and transformer loss that three-phase imbalance causes, improves power supply quality and confession
Electric reliability.Apparatus of the present invention own loss is little, is close to zero loss, to environment no electromagnetic pollution, noise-less pollution；To power distribution network
The improvement of imbalance of three-phase voltage, can avoid shoving in the generation of load switching moment, and alternate switch speed is fast, while avoiding
The heating problem that IGBT longtime runnings bring, commutation process do not have a power failure, while to system without impact, greatly improving power distribution network stable
Operation level.
Further, trigger board is zero passage commutation trigger board, and the commutation time of trigger board is less than or equal to 6.6ms, using zero passage
Commutation technology, can avoid larger the shoving in the generation of load switching moment, it is to avoid produce impact to the electrical equipment of user.
Further, for user's power-off that uniline failure causes, phase-change switch can quickly disconnect failure phase, while main
Control system is quickly calculated, and user is switched to normally mutually running for line current nargin maximum, it is to avoid user's power-off, is carried
High power supply quality.
When power distribution network tri-phase unbalance factor meets Standard, phase-change switch is maintained at work phase to the method for the present invention,
Work cross streams catalyst closes a floodgate, IGBT device locking；Inoperative cross streams catalyst is in gate-dividing state, and IGBT device is closed
Lock.When system tri-phase unbalance factor exceedes Standard, phase-change switch can switch to low-load phase, and work phase IGBT device is led
Logical, work cross streams catalyst separating brake, the IGBT device shut-off of work phase, low-load phase IGBT device triggering and conducting, low-load phase
A.C. contactor closes a floodgate, low-load phase IGBT device locking, it is to avoid semiconductor device longtime running band in traditional phase-change switch
The heating problem for coming, can be adjusted to power distribution network three-phase imbalance, make three-phase branch road mean allocation load, reduce three-phase not
Threephase load and transformer loss that balance causes, improve power supply quality and power supply reliability.
Description of the drawings
Structural representations of the Fig. 1 for apparatus of the present invention；
Flow charts of the Fig. 2 for the inventive method.
Specific embodiment
The present invention is further explained with reference to specific embodiment and Figure of description.
Referring to Fig. 1, apparatus of the present invention include three phase connections being arranged in housing, are respectively connected with per phase connection parallel with one another
IGBT device and catalyst, IGBT device includes two mutually antiparallel IGBT pipes, and the IGBT device and catalyst are equal
Trigger board is connected to, trigger board is connected to master control system.Trigger board is zero passage commutation trigger board, and the commutation time of trigger board is less than
It is equal to 6.6ms, M57962AL circuit of the trigger board using MIT's production.IGBT pipes are using the life of company of German Infineon
The IGZ100N65H5 of product.DUS-380/C model master control system of the master control system using CLP Purui Technology Co., Ltd's production.
Referring to Fig. 2, the inventive method is comprised the following steps：
1), after power-up initializing, master control system selects electricity operation in acquiescence work phase A phase, gives tacit consent to work by triggering plate closing
Make the catalyst of phase A phase, give tacit consent to the IGBT device locking in work phase A phase and non-default work phase B, C phase, give tacit consent to work phase A
Mutually normally run backward master control system and upload operation information；
2) after commutation order is connected to, master control system controls the IGBT of acquiescence work phase to master control system by trigger board first
Device IGBT-A is turned on, and disconnects the catalyst A of acquiescence work phase, is then powered off IGBT device IGBT-A for giving tacit consent to work phase, is led
Logical IGBT device IGBT-B for treating commutation work phase, finally closes the catalyst B for treating commutation work phase, and commutation work phase is treated in shut-off
IGBT device IGBT-B, treat commutation work phase on electricity, after normal operation to master control system upload operation information, complete commutation.
The phase-change switch of the present invention adopts inverse parallel structure using IGBT and A.C. contactor parallel-connection structure, wherein IGBT,
When power distribution network tri-phase unbalance factor meets Standard, phase-change switch is maintained at work phase, and work cross streams catalyst closes a floodgate,
IGBT lockings；Inoperative cross streams catalyst is in gate-dividing state, IGBT lockings.Will more than GB in system tri-phase unbalance factor
When asking, phase-change switch can switch to low-load phase, and the course of work is as follows：Work phase IGBT conducting, work cross streams catalyst point
Lock, work phase IGBT shut-off, low-load phase IGBT triggering and conducting, low-load cross streams catalyst close a floodgate, and low-load phase IGBT is closed
Lock.
The present invention can be adjusted to power distribution network three-phase imbalance, make three-phase branch road mean allocation load, reduce three-phase
Threephase load and transformer loss that imbalance causes, improve power supply quality and power supply reliability, reduce customer complaint rate；Using
Zero passage commutation technology realizes that the switching that do not have a power failure, commutation time maximum 6.6ms can be avoided in the larger of load switching moment generation
Shove, it is to avoid impact is produced on the electrical equipment of user；For user's power-off that uniline failure causes, phase-change switch can be fast
Failure phase is opened in quick-break, while master control system is quickly calculated, and user is switched to the maximum normal phase of line current nargin
Operation, intelligent phase shortage do not have a power failure, it is to avoid user's power-off, improve power supply quality；Using two-way IGBT parallel contactors structure, it is to avoid
The heating problem that semiconductor device longtime running brings in traditional phase-change switch, will greatly improve distribution operation stability and safety
Property, device own loss are little, are close to zero loss, to environment no electromagnetic pollution, noise-less pollution, energy-conservation reliability；Mounting means spirit
Living, it is suitable for the first-class multiple mounting modes of indoor and outdoor, wall hanging, post.
Claims (7)
1. a kind of three-phase imbalance adjusts phase-change switch, it is characterised in that including three phase connections being arranged in housing, often connect
Line is respectively connected with IGBT device parallel with one another and catalyst, and IGBT device includes two mutually antiparallel IGBT pipes, described
IGBT device and catalyst are connected to trigger board, and trigger board is connected to master control system.
2. a kind of three-phase imbalance according to claim 1 adjusts phase-change switch, it is characterised in that the trigger board was
Zero commutation trigger board.
3. a kind of three-phase imbalance according to claim 2 adjusts phase-change switch, it is characterised in that the trigger board is changed
The phase time is less than or equal to 6.6ms.
4. a kind of three-phase imbalance according to claim 3 adjusts phase-change switch, it is characterised in that the trigger board is adopted
The M57962AL circuits of MIT's production.
5. a kind of three-phase imbalance according to claim 1 adjusts phase-change switch, it is characterised in that the IGBT pipes are adopted
The IGZ100N65H5 of German company of Infineon production.
6. a kind of three-phase imbalance according to claim 1 adjusts phase-change switch, it is characterised in that the master control system is adopted
The DUS-380/C model master control systems produced with CLP Purui Technology Co., Ltd.
7. three-phase imbalance described in a kind of any one of employing claim 1-6 adjusts the three-phase imbalance regulation commutation of phase-change switch
Method, it is characterised in that comprise the following steps：
1), after power-up initializing, master control system selects electricity operation in acquiescence work phase, by triggering plate closing acquiescence work phase
Catalyst, gives tacit consent to the IGBT device locking in work phase and non-default work phase, and acquiescence work mutually normally runs backward master control system
System uploads operation information；
2) after commutation order is connected to, master control system controls the IGBT device of acquiescence work phase to master control system by trigger board first
Conducting, disconnects the catalyst of acquiescence work phase, is then powered off the IGBT device for giving tacit consent to work phase, and commutation work phase is treated in conducting
IGBT device, finally closes the catalyst for treating commutation work phase, and the IGBT device of commutation work phase is treated in shut-off, treats commutation work phase
Upper electricity, uploads operation information to master control system after normal operation, completes commutation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070715.XA CN106505594A (en) | 2016-11-28 | 2016-11-28 | A kind of three-phase imbalance adjusts phase-change switch and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070715.XA CN106505594A (en) | 2016-11-28 | 2016-11-28 | A kind of three-phase imbalance adjusts phase-change switch and method |
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| Publication Number | Publication Date |
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| CN106505594A true CN106505594A (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611070715.XA Pending CN106505594A (en) | 2016-11-28 | 2016-11-28 | A kind of three-phase imbalance adjusts phase-change switch and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092286A (en) * | 2018-01-19 | 2018-05-29 | 山东卓尔电气有限公司 | A kind of relay system phase-change switch for preventing installation short circuit |
| CN108808708A (en) * | 2017-04-26 | 2018-11-13 | 秦传勇 | A kind of intelligence phase-change switch |
| CN113054673A (en) * | 2021-03-17 | 2021-06-29 | 浙江双成电气有限公司 | Unbalanced three-phase commutation switch |
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| CN203981776U (en) * | 2014-07-31 | 2014-12-03 | 贾智雪 | The intelligent electric meter of energy self-poise three-phase load |
| CN104362751A (en) * | 2014-11-19 | 2015-02-18 | 北京中电博达科技有限公司 | Intelligent switching switch |
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Patent Citations (3)
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| CN203981776U (en) * | 2014-07-31 | 2014-12-03 | 贾智雪 | The intelligent electric meter of energy self-poise three-phase load |
| CN104362751A (en) * | 2014-11-19 | 2015-02-18 | 北京中电博达科技有限公司 | Intelligent switching switch |
| CN105552939A (en) * | 2016-03-07 | 2016-05-04 | 山东电工电气集团新能科技有限公司 | Three-phase unbalance governance system and method |
Non-Patent Citations (1)
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| 苗振林: ""基于IGBT的快速切换开关研究及保护系统设计"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808708A (en) * | 2017-04-26 | 2018-11-13 | 秦传勇 | A kind of intelligence phase-change switch |
| CN108808708B (en) * | 2017-04-26 | 2021-08-24 | 秦传勇 | Intelligent phase-change switch |
| CN108092286A (en) * | 2018-01-19 | 2018-05-29 | 山东卓尔电气有限公司 | A kind of relay system phase-change switch for preventing installation short circuit |
| CN113054673A (en) * | 2021-03-17 | 2021-06-29 | 浙江双成电气有限公司 | Unbalanced three-phase commutation switch |
| CN113054673B (en) * | 2021-03-17 | 2022-05-20 | 浙江双成电气有限公司 | Unbalanced three-phase commutation switch |
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Application publication date: 20170315 |