CN108923444A - A kind of hybrid control method and application adjusting power distribution station tri-phase unbalance factor - Google Patents
A kind of hybrid control method and application adjusting power distribution station tri-phase unbalance factor Download PDFInfo
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- CN108923444A CN108923444A CN201810843173.8A CN201810843173A CN108923444A CN 108923444 A CN108923444 A CN 108923444A CN 201810843173 A CN201810843173 A CN 201810843173A CN 108923444 A CN108923444 A CN 108923444A
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- 238000004891 communication Methods 0.000 claims abstract description 28
- 230000003993 interaction Effects 0.000 claims abstract description 14
- 238000012546 transfer Methods 0.000 claims abstract description 3
- 230000006870 function Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 7
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
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Classifications
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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
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- H02J13/0075—
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to low-voltage power supply platform area three-phase electric energy quality field is improved, a kind of hybrid control method and application for adjusting power distribution station tri-phase unbalance factor is particularly disclosed.The hybrid control method of the adjustment power distribution station tri-phase unbalance factor, it is characterised in that：Including the network hardware being made of intelligent phase-change switch, Centralized Controller, server and terminal device, and the data transfer platform constructed by communication network, communication apparatus, server and human-computer interaction terminal；Intelligent phase-change switch is divided into the switch for having function of wireless remote control and does not have the switch of function of wireless remote control, wherein the switch for having function of wireless remote control is installed on distribution transforming neighbouring position, the switch for not having function of wireless remote control is installed on distribution line end.Control mode of the present invention is simple and clear, and two kinds of control modes cooperate, and distribution transforming outlet side three-phase current unbalance degree can be adjusted, the area Ye Keduitai line end non-equilibrium among three phase voltages carry out fining adjustment.
Description
（One）Technical field
The present invention relates to low-voltage power supply platform area three-phase electric energy quality field is improved, in particular to a kind of adjustment power distribution station three-phase is not
The hybrid control method of the degree of balance and application.
（Two）Background technique
Using the control of intelligent phase-change switch for the method for radio area tri-phase unbalance factor, it is divided into two kinds at present：First is that being controlled by concentrating
Each phase-change switch in Zhi Qi unified console area realizes platform area distribution transforming output by control phase-change switch three-phase current distribution
Side three-phase current tends to balance；Second is that according to the three-phase voltage of each user access point of platform area power grid, phase angle, power factor, it is real
When distribution of the adjust automatically load in power grid three-phase, be in the threshold range of setting to control tri-phase unbalance factor.This
Two kinds of control methods respectively have certain drawbacks, and distribution transforming outlet side three-phase balance can be achieved in method one, but can not achieve
Platform area distribution line end threephase load balance；The threephase load that platform area distribution line end can be achieved in method two balances, but
Distribution transforming outlet side three-phase balance cannot be controlled under the conditions of the economy of platform area installation cost is restricted well.Therefore,
During controlling power distribution station three-phrase burden balance, the three-phase voltage balance of power distribution station line end how is realized, together
When can be good at again control distribution transforming outlet side three-phase current the degree of balance, be the new striving direction of platform area control method.
（Three）Summary of the invention
In order to compensate for the shortcomings of the prior art, the present invention provides a kind of adjusting three-phase equilibrium, the adjustment of raising power quality to match
The hybrid control method of radio area tri-phase unbalance factor and application.
The present invention is achieved through the following technical solutions：
A kind of hybrid control method adjusting power distribution station tri-phase unbalance factor, it is characterised in that：Including being opened by intelligent commutation
The network hardware that pass, Centralized Controller, server and terminal device are constituted, and by communication network, communication apparatus, server and
The data transfer platform of human-computer interaction terminal building；Every server covers several Centralized Controllers, each Centralized Controller
The data information that several intelligent phase-change switches in platform area locating for it issue is received, and the information received is uploaded to service
Device, server are connected with the terminal device of human-computer interaction terminal；Intelligent phase-change switch, which is divided into, has function of wireless remote control
It switchs and does not have the switch of function of wireless remote control, wherein the switch for having function of wireless remote control is installed on distribution transforming neighbouring position,
The switch for not having function of wireless remote control is installed on distribution line end.
More excellent technical solution of the invention is：
The data transmission network in every area is made of a Centralized Controller, several intelligent phase-change switches, centralized control
Device is installed on the outlet side of platform area distribution transforming, for being connected to intelligent phase-change switch and server.Centralized control its be used to acquire distribution transforming
Collected information is uploaded to server by the voltage and current information of outlet, while Centralized Controller receives in this TV station area
The data packet that all intelligent metering casees for having networking function are sent, and the data packet received is uploaded to by GPRS network
Server；Centralized Controller is also responsible for receiving the control instruction information from server, sends information to specified ID coding
Intelligent phase-change switch.Centralized Controller is in the hub site of platform area information transmission, be all information transmission in platform area it is total go out
Mouth and main entrance.
Server completes the data monitoring and data processing task in multiple areas, while the operation data that the area Jiang Getai uploads
It saves.
The terminal device is with the computer terminal PC of corresponding human-computer interaction interface or intelligent mobile phone terminal, PC computer
Ethernet or wireless communication are used between terminal and server, it is logical using GPRS between intelligent mobile phone terminal and server
Letter.
The communication network includes the LORA local area network of intelligent phase-change switch and Centralized Controller in connected unit area, Yi Jilian
GPRS network between the area Jie Getai Centralized Controller and director server.
Intelligence phase-change switch inlet wire in a manner of three-phase and four-line, the backbone or each branched line of the power supply of access platform area.
The intelligence phase-change switch is configured with intelligent switch central processing unit, and intelligent switch central processing unit is connected with display
Module, electric energy acquisition chip, communication module, clock memory module, power module, electrical energy pulse acquisition module, commutation mechanism and
Key module；Wherein, the communication module is one of carrier communication, wireless network, GPRS, 485/232 communication.
The application of the hybrid control method of the present invention, including two kinds of control models.Control model 1：It is installed on the distribution transforming of platform area
Neighbouring intelligent phase-change switch has function of wireless remote control, and the Centralized Controller being controlled by platform area, intelligent phase-change switch will be adopted
The load information collected is transmitted to Centralized Controller by wireless communication networks, and Centralized Controller is according to the three-phase of distribution transforming outlet side
Current data, COMPREHENSIVE CALCULATING judge the commutation scheme of next step, load distribution by adjusting the phase-change switch near distribution transforming, so that
Distribution transforming outlet side three-phase current is within the scope of given threshold；Control model 2：The intelligent phase-change switch of platform area lines branch end
Have self-adjusting function, commutation scheme can be automatically determined according to access point three-phase voltage, phase angle, power factor, so that access
Point non-equilibrium among three phase voltages are controlled in the threshold range of setting；Above two control model carries out simultaneously, does not interfere with each other.
Control model 1 is used for the coarse regulation of three-phase current unbalance degree, by adjusting the load of phase-change switch near distribution transforming
Distribution, adjustment distribution transforming outlet side three-phase current are substantially in the threshold range of setting；Control model 2 uses the accurate of line end
Adjustment distributes distribution network three-phase load on the basis of control model 1 adjusts again, thus accurately control distribution line end
End non-equilibrium among three phase voltages are within the scope of given threshold, and are controlled distribution transforming outlet side three-phase current unbalance degree and be in setting
In threshold range, to simultaneously, utmostly reduce line end in effectively control distribution transforming outlet side three-phase current unbalance degree
Line loss.
The Centralized Controller is installed on distribution transforming outlet side, three-phase voltage, the three-phase current, phase of acquisition distribution transforming output
Angle, power factor carry out non-equilibrium among three phase voltages and calculate and the calculating of three-phase current unbalance degree；Meanwhile Centralized Controller is logical
Cross wireless communication networks and receive the relevant information from intelligent phase-change switch, Centralized Controller according to these information received,
By the operation of own system, the commutation scheme of next step phase-change switch is obtained, and send instructions to corresponding intelligent commutation and open
It closes, it is made to make defined commutation movement.
It is configured with human-computer interaction interface on the terminal device, the use in all regulated station areas is inquired on human-computer interaction interface
Power information, operation of power networks status information, intelligent metering case operation information, and by human-computer interaction interface remotely control intelligently change
It mutually switchs, realizes various set movements.
Control mode of the present invention is simple and clear, and two kinds of control modes cooperate, and distribution transforming outlet side three-phase electricity can be adjusted
Degree of unbalancedness is flowed, the area Ye Keduitai line end non-equilibrium among three phase voltages carry out fining adjustment, so kind mixing controlling party
Three-phase voltage current degree of unbalancedness is regulated and controled comprehensively in the area Fa Keduitai, comprehensively accurate console area tri-phase unbalance factor, real
Now real three-phase equilibrium, to guarantee power distribution station power quality to greatest extent, reduce line loss.
（Four）Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is the schematic diagram of the intelligent phase-change switch data transmission link of the present invention；
Fig. 2 is the installation site distribution schematic diagram of intelligent phase-change switch in platform area of the present invention；
Fig. 3 is the intelligent phase-change switch connection principle schematic diagram of the present invention；
Fig. 4 is separate unit intelligent switch hardware architecture schematic diagram of the present invention.
（Five）Specific embodiment
Embodiment：
A kind of hybrid control method adjusting power distribution station tri-phase unbalance factor, including by intelligent phase-change switch, centralized control
The data processing network hardware that device, server and terminal device are constituted, and by communication network, communication apparatus, server and people
The data transmission network of machine interactive terminal building；Every server covers several Centralized Controllers, and each Centralized Controller connects
The data information that several intelligent phase-change switches in platform area locating for it issue is received, and the information received is uploaded to service
Device, server are connected with the terminal device of human-computer interaction terminal.
As shown in Fig. 1, every server can cover 300（It is determined according to specific installation situation）A Centralized Controller, often
A Centralized Controller receives the data information that the intelligent phase-change switch in platform area locating for it issues, and will be in the information that received
Reach server；Server can connect the computer terminal PC and intelligent mobile phone terminal, and have corresponding man-machine friendship in each terminal
Mutual interface.LORA local area network communication is used between intelligent metering case and Centralized Controller（It is not limited only to such communication modes）,
It is communicated between Centralized Controller and server using GPRS network, Ethernet or nothing is used between PC terminal and server
Line network communication is communicated between server and intelligent mobile phone terminal using GPRS.Pass through the end PC or the application circle of smart phone
The remote controlled intelligent phase-change switch in face realizes commutation movement and trip operation.
As shown in Fig. 2, the data transmission network in every area is by 1 Centralized Controller, several intelligent phase-change switch structures
At.Centralized Controller is installed on the outlet side of platform area distribution transforming, will be collected for acquiring the voltage and current information of distribution transforming outlet
Information is uploaded to server；Concentrator receives the data packet that all intelligent metering casees are sent in this TV station area simultaneously, and will connect
The data packet received is uploaded to server by GPRS network；Concentrator is also responsible for receiving the control instruction letter from server
Breath, and send this information to the intelligent phase-change switch of specified ID coding.Centralized Controller is in the hinge of platform area information transmission
Position is the general export of all information transmission and main entrance in platform area.Intelligent phase-change switch is divided into band wireless remote control function in platform area
Can intelligent phase-change switch and intelligent phase-change switch two types without function of wireless remote control.As shown, with wireless remote control
The intelligent phase-change switch selection of function is installed apart from the closer region in platform area distribution transforming position, without the intelligence of function of wireless remote control
Phase-change switch is selected in the end of platform area route（Apart from platform area distribution transforming remote position）Installation, the proportion of installation root of two kinds of switches
It is determined according to platform area electricity consumption situation.After platform area intelligence phase-change switch, which starts, to be run, platform area Centralized Controller goes out according to distribution transforming first
The intelligent phase-change switch that mouth side three-phase current unbalance degree situation control has function of wireless remote control carries out commutation movement, to platform area
Tri-phase unbalance factor carries out coarse adjustment, and distribution transforming outlet side tri-phase unbalance factor is greatly reduced；Then, without wireless remote control
The intelligent phase-change switch of function carries out a new wheel adjustment, according to the three-phase voltage of access point, phase angle and power factor into
Row sharing of load, executes commutation movement, and console area line end non-equilibrium among three phase voltages are within the scope of given threshold.Cause
Basic inversely prroportional relationship is presented in three-phase electricity voltage and current, i.e., when phase current load a certain in ABC three-phase increases, then its line is electric
Pressure drop is low, conversely, line voltage increases.So adjusting voltage tri-phase unbalance factor by adjusting platform area line end sharing of load
While, distribution transforming outlet side three-phase current unbalance degree in the area Ye Duitai has carried out new round adjustment, so that distribution transforming outlet side three-phase
Current unbalance factor controls within the allowable range.
If the WLAN communication between Centralized Controller and intelligent phase-change switch interrupts, intelligent phase-change switch is automatic
It is transferred to system operating mode, determines that commutation acts by detection access point three-phase voltage, phase angle and power factor；Work as channel radio
After news restore normal, it is transferred to networking operating mode automatically, intelligent phase-change switch is controlled by Centralized Controller transmission commutation instruction and is held
Row commutation movement.
As shown in Fig. 3, intelligent phase-change switch accesses the backbone or each branch line of the power supply of platform area with three-phase and four-line inlet wire
Road.Output single-phase power supply is switched, several user's electric energy meters are tapped.All electric energy meters of switch tap pass through signal wire and intelligence
Phase-change switch I/O port is connected, and the electrical energy pulse acquisition interface of each electric energy meter is sent out the pulse signal itself generated by signal wire
It send to intelligent phase-change switch, total electric energy that intelligent phase-change switch calculates all electric energy meters in this batch meter special time period uses
Amount.
As shown in Fig. 4, intelligent phase-change switch has central processing unit, is connected with display module, electric energy acquisition chip, leads to
Believe module（Carrier wave, wireless, GPRS, 485/232 optional one）, clock memory module, power module, electrical energy pulse acquire mould
Block, commutation mechanism and key module.
The application range of the method for the present invention：It is final to realize for cell or rural power grids tri-phase unbalance factor comprehensive adjustment
Controllably in the reasonable scope, optimization power quality reduces line loss for power distribution station three-phase voltage and three-phase current unbalance degree.
Claims (10)
1. a kind of hybrid control method for adjusting power distribution station tri-phase unbalance factor, it is characterised in that：Including by intelligent commutation
The network hardware that switch, Centralized Controller, server and terminal device are constituted, and by communication network, communication apparatus, server
With the data transfer platform of human-computer interaction terminal building；Every server covers several Centralized Controllers, each centralized control
Device receives the data information that several intelligent phase-change switches in platform area locating for it issue, and the information received is uploaded to clothes
Business device, server are connected with the terminal device of human-computer interaction terminal；Intelligent phase-change switch, which is divided into, has function of wireless remote control
Switch and do not have the switch of function of wireless remote control, wherein the switch for having function of wireless remote control be installed on distribution transforming nearby position
It sets, the switch for not having function of wireless remote control is installed on distribution line end.
2. the hybrid control method of adjustment power distribution station tri-phase unbalance factor according to claim 1, it is characterised in that：
The data transmission network in every area is made of a Centralized Controller, several intelligent phase-change switches, Centralized Controller peace
Outlet side loaded on the distribution transforming of platform area, for being connected to intelligent phase-change switch and server.
3. the hybrid control method of adjustment power distribution station tri-phase unbalance factor according to claim 1, it is characterised in that：
The terminal device is with the computer terminal PC of corresponding human-computer interaction interface or intelligent mobile phone terminal, the computer terminal PC kimonos
It is engaged in using Ethernet or wireless communication between device, be communicated between intelligent mobile phone terminal and server using GPRS.
4. the hybrid control method of adjustment power distribution station tri-phase unbalance factor according to claim 1, it is characterised in that：
The communication network includes the LORA local area network of intelligent phase-change switch and Centralized Controller in connected unit area, and each area of connection
GPRS network between Centralized Controller and director server.
5. the hybrid control method of adjustment power distribution station tri-phase unbalance factor according to claim 1, it is characterised in that：
Intelligence phase-change switch inlet wire in a manner of three-phase and four-line, the backbone or each branched line of the power supply of access platform area.
6. the hybrid control method of the tri-phase unbalance factor of adjustment power distribution station according to claim 1, feature exist
In：It is described intelligence phase-change switch be configured with intelligent switch central processing unit, intelligent switch central processing unit be connected with display module,
Electric energy acquisition chip, communication module, clock memory module, power module, electrical energy pulse acquisition module, commutation mechanism and key mould
Block.
7. the hybrid control method of the tri-phase unbalance factor of adjustment power distribution station according to claim 6, feature exist
In：The communication module is one of carrier communication, wireless network, GPRS, 485/232 communication.
8. the application of the hybrid control method of the tri-phase unbalance factor of adjustment power distribution station according to claim 1,
It is characterized in that：Control model 1：It is installed on the intelligent phase-change switch near the distribution transforming of platform area and has function of wireless remote control, be controlled by platform
Collected load information is transmitted to centralized control by wireless communication networks by the Centralized Controller in area, intelligent phase-change switch
Device, Centralized Controller judge the commutation scheme of next step, pass through tune according to the three-phase current data of distribution transforming outlet side, COMPREHENSIVE CALCULATING
Phase-change switch near whole distribution transforming loads distribution, so that distribution transforming outlet side three-phase current is within the scope of given threshold；Control mould
Formula 2：The intelligent phase-change switch of platform area lines branch end has self-adjusting function, can according to access point three-phase voltage, phase angle,
Power factor automatically determines commutation scheme, so that access point non-equilibrium among three phase voltages are controlled in the threshold range of setting；
Above two control model carries out simultaneously, does not interfere with each other.
9. the application of the hybrid control method of three degrees of unbalancedness of adjustment power distribution station according to claim 8,
It is characterized in that：The Centralized Controller is installed on distribution transforming outlet side, three-phase voltage, the three-phase current, phase of acquisition distribution transforming output
Angle, power factor carry out non-equilibrium among three phase voltages and calculate and the calculating of three-phase current unbalance degree；Meanwhile Centralized Controller is logical
Cross wireless communication networks and receive the relevant information from intelligent phase-change switch, Centralized Controller according to these information received,
By the operation of own system, the commutation scheme of next step phase-change switch is obtained, and send instructions to corresponding intelligent commutation and open
It closes, it is made to make defined commutation movement；Or Centralized Controller is realized specific by control instruction of the forwarding from server
The commutation of intelligent phase-change switch acts.
10. the application of the hybrid control method of the tri-phase unbalance factor of adjustment power distribution station according to claim 8,
It is characterized in that：It is configured with human-computer interaction interface on the terminal device, all regulated station areas are inquired on human-computer interaction interface
Power information, operation of power networks status information, intelligent metering case operation information, and intelligence is remotely controlled by human-computer interaction interface
Phase-change switch realizes various set movements.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810843173.8A CN108923444B (en) | 2018-07-27 | 2018-07-27 | Hybrid control method for adjusting three-phase unbalance degree of power distribution area and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810843173.8A CN108923444B (en) | 2018-07-27 | 2018-07-27 | Hybrid control method for adjusting three-phase unbalance degree of power distribution area and application |
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| CN108923444B CN108923444B (en) | 2022-06-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109995058A (en) * | 2019-03-27 | 2019-07-09 | 国网青海省电力公司黄化供电公司 | A kind of device and its workflow of the improvement three-phase imbalance for low voltage electric network |
| CN110133391A (en) * | 2019-05-14 | 2019-08-16 | 珠海万力达电气自动化有限公司 | The monitoring method and monitoring system of a kind of electric system platform area three-phase imbalance |
| CN111146790A (en) * | 2020-01-03 | 2020-05-12 | 深圳供电局有限公司 | Commutation switch control system |
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| CN108923444B (en) | 2022-06-24 |
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