CN106099959A - A kind of three-phase imbalance based on cloud platform regulation system - Google Patents
A kind of three-phase imbalance based on cloud platform regulation system Download PDFInfo
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- CN106099959A CN106099959A CN201610686422.8A CN201610686422A CN106099959A CN 106099959 A CN106099959 A CN 106099959A CN 201610686422 A CN201610686422 A CN 201610686422A CN 106099959 A CN106099959 A CN 106099959A
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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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- 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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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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
- 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
- Y02E40/30—Reactive power compensation
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention is that a kind of three-phase imbalance based on cloud platform regulates system, it is characterized in that including intelligent terminal, three-phase load balancing device, cloud platform, and wherein cloud platform is connected with intelligent terminal, three-phase load balancing device by GPRS network.Advantage: use native system, makes three-phase load unbalance regulation more scientific, timely, to reduce line loss, it is ensured that transformer safety, stable, economical operation.
Description
Technical field
The present invention is that a kind of three-phase imbalance based on cloud platform regulates system, belongs to electric power quality and controls skill
Art field.
Background technology
The main cause of low-voltage network three-phase load unbalance is that three-phase load is asymmetric, due to the inequality of single-phase user
Even distribution and uncontrollable increase-volume, the access of great power single phase load, electricity consumption behavior is had randomness by seasonal effect, and right
The reasons such as three-phrase burden balance management thinks little of so that three-phase load unbalance problem is more serious.
Three-phase load unbalance mainly has the following aspects to the safety of low-voltage power supply system, the impact of economical operation:
1, the electric energy loss of low-voltage circuit is increased；
2, affect power supply quality, cause user's " voltage is low "；
3, the electric energy loss of distribution transformer is increased；
4, distribution transforming is exerted oneself minimizing.Cause distribution transforming to run under overload conditions, easily cause distribution transforming heating, even can cause time serious
Distribution transforming scaling loss；
5, motor efficiency reduces.
The three-phrase burden balance work of low-voltage network has had been subjected to power department and has more and more paid close attention to and pay attention to, but
Limited by state of the art and measuring instrument, the balancing work of low-voltage three-phase load the most only rest on routine test and
Rule of thumb remove Load adjustment, and equilibrium point is only conceived at the minority test points such as step down side outlet balance, and do not have
In view of the balance within low-voltage power network, so the DeGrain adjusted.
Three-phase load unbalance for low-voltage network is automatically adjusted, and is currently mainly used low pressure SVC scheme and low pressure
SVG scheme.But low pressure SVC device is expensive, and input cost is excessive, floor space is big, and electric capacity puts into improper meeting to humorous
Ripple has diffusion, and low pressure SVG volume is excessive, and device own loss is big.Therefore both schemes have certain limitation
Property.
Summary of the invention
What the present invention proposed is that a kind of three-phase imbalance based on cloud platform regulates system, its object is to overcome existing skill
Drawbacks described above existing for art；Science, the in time unbalanced three-phase load of regulation, reduce line loss, it is ensured that transformer safety,
Stable, economical operation.Accurately, safety, economical and easily controllable, improve three-phase load unbalance regulating effect.
The technical solution of the present invention: a kind of three-phase imbalance based on cloud platform regulation system, is characterized in that including
Intelligent terminal, three-phase load balancing device, cloud platform, wherein cloud platform is put down with intelligent terminal, three-phase load by GPRS network
Weighing apparatus device connects.
The beneficial effects of the present invention is: use native system, make three-phase load unbalance regulation more scientific, timely, to reach
To reducing line loss, it is ensured that transformer safety, stable, economical operation.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of a kind of three-phase imbalance based on cloud platform regulation system;
Accompanying drawing 2 is the operational flow diagram of three-phase load balancing device;
Accompanying drawing 3 is cloud platform operational flow diagram.
Detailed description of the invention
As it can be seen, a kind of three-phase imbalance based on cloud platform regulation system, including intelligent terminal, three-phrase burden balance
Device, cloud platform, wherein cloud platform is connected with intelligent terminal, three-phase load balancing device by GPRS network.
Described intelligent terminal is by monitoring total outlet metering ammeter of distribution transformer, it is thus achieved that distribution transformer runs number
According to, and uploading to cloud platform by GPRS network, described three-phase load balancing device has N number of, is arranged on distribution line branch line end
In the cell list case of end, in order to gather branch current, phase information, upload to cloud platform by GPRS network, and put down according to cloud
Platform control command carries out power phase switching；Described N=platform district distribution line branch line end three-phase and four-line turns the list of single phase power supply
Unit's table case number, and N≤30.When platform district distribution line branch line end three-phase and four-line, to turn the cell list case number of single phase power supply big
In 30 time, select load the highest Qian 30 tunnel.Selecting N≤30 is to consider economy.
The method using three-phase imbalance based on cloud platform regulation system fading margin three-phrase burden balance, when finding that distribution becomes
When at depressor always appearance, current imbalance exceedes limit value:
1) cloud platform directly obtains electric current and the phase place of three-phase load balancing device under affiliated platform district by GPRS network；
2) optimum commutation strategy is calculated by the solution of nonlinear discrete integer multi-objective optimization question；
Specific algorithm is:
Object function 1: at distribution transformer low-pressure line-outgoing, three-phase current unbalance degree is minimum；
Object function 2: in commutation process, three-phase load balancing device switch adjusts least number of times；
Because problem scale is less and superpower by cloud platform computing capability, use the method for exhaustion, the overall situation that what the method for exhaustion obtained must be is
Excellent solution；
3) according to the optimum commutation strategy calculated, directly issued control command by GPRS network, control three-phase load and put down
Weighing apparatus device adjusts power phase switching, reaches three-phrase burden balance.
Embodiment 1: install intelligent terminal at distribution transformer low-pressure line-outgoing, intelligent terminal is connected by GPRS and cloud platform
Connect.Intelligent terminal uses the DJGZ23-XLJ101 type product that Nanjing XinLian Electron Co., Ltd produces.
Embodiment 2: turn the load sequence at the cell list case of single phase power supply according to distribution line branch line end three-phase and four-line,
N number of three-phase load balancing device is installed.Each three-phase load balancing device is connected by GPRS and cloud platform.Three-phrase burden balance
Device uses the DP-XLK208 type product of Nanjing XinLian Electron Co., Ltd.
Embodiment 3: be illustrated in figure 2 the operational flow diagram of three-phase load balancing device.
Embodiment 4: cloud platform uses Nanjing newly to join adapted pyroelectric monitor and the management system of electric energy cloud service company limited.As
Fig. 3 show cloud platform operational flow diagram.
Claims (4)
1. three-phase imbalance based on a cloud platform regulation system, is characterized in that including intelligent terminal, and three-phrase burden balance fills
Putting, cloud platform, wherein cloud platform is connected with intelligent terminal, three-phase load balancing device by GPRS network.
A kind of three-phase imbalance based on cloud platform the most according to claim 1 regulation system, is characterized in that described intelligence
Terminal is by monitoring total outlet metering ammeter of distribution transformer, it is thus achieved that distribution transformer service data, and by GPRS net
Network uploads to cloud platform.
A kind of three-phase imbalance based on cloud platform the most according to claim 1 regulation system, is characterized in that described three-phase
Load equalizer has N number of, is arranged in the cell list case of distribution line branch line end, in order to gather branch current, phase place letter
Breath, uploads to cloud platform by GPRS network, and carries out power phase switching according to cloud platform control command；Described N is platform
District's distribution line branch line end three-phase and four-line turns the cell list case number of single phase power supply, and N≤20, and when platform district, distribution line props up
When line end three-phase and four-line turns the cell list case number of single phase power supply more than 20, select load the highest Qian 20 tunnel.
4. the method using three-phase imbalance based on cloud platform regulation system fading margin three-phrase burden balance, is characterized in that when finding
When at distribution transformer always appearance, current imbalance exceedes limit value:
1) cloud platform directly obtains electric current and the phase place of three-phase part bascule under affiliated platform district by GPRS network；
2) optimum commutation strategy is calculated by the solution of nonlinear discrete integer multi-objective optimization question；
Specific algorithm is:
Object function 1: at distribution transformer low-pressure line-outgoing, three-phase current unbalance degree is minimum；
Object function 2: in commutation process, three-phase load balancing device switch adjusts least number of times；
Because problem scale is less and superpower by cloud platform computing capability, use the method for exhaustion, the method for exhaustion obtains globally optimal solution；
3) directly issue control command by GPRS network, control three-phase load balancing device and adjust power phase switching, reach
Three-phrase burden balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610686422.8A CN106099959A (en) | 2016-08-16 | 2016-08-16 | A kind of three-phase imbalance based on cloud platform regulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610686422.8A CN106099959A (en) | 2016-08-16 | 2016-08-16 | A kind of three-phase imbalance based on cloud platform regulation system |
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| CN106099959A true CN106099959A (en) | 2016-11-09 |
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| CN201610686422.8A Pending CN106099959A (en) | 2016-08-16 | 2016-08-16 | A kind of three-phase imbalance based on cloud platform regulation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471127A (en) * | 2018-05-05 | 2018-08-31 | 石家庄科林电气股份有限公司 | A kind of three-phase load unbalance Automatic adjustment method realized using simulation transition algorithm |
| CN110838717A (en) * | 2019-11-15 | 2020-02-25 | 国网湖南综合能源服务有限公司 | Electric energy replacing efficient energy-saving control system for low-voltage distribution network and application method thereof |
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| CN102347972A (en) * | 2011-05-24 | 2012-02-08 | 中国电力科学研究院 | Non-contact type device in rural grid power distribution station area and using method thereof |
| CN102751724A (en) * | 2012-06-19 | 2012-10-24 | 中国科学院计算技术研究所 | Prediction-based three-phase load scheduling method and device responding to demand side |
| CN104852394A (en) * | 2015-05-07 | 2015-08-19 | 陈鸽 | Power load balancing system applied to low-voltage power distribution network |
| CN105207239A (en) * | 2015-10-23 | 2015-12-30 | 国网山东乳山市供电公司 | Intelligent three phase load unbalance adjusting device and three phase load adjusting method |
| CN205017015U (en) * | 2015-10-17 | 2016-02-03 | 国网福建省电力有限公司 | Novel adjustment of low -voltage power supply network three -phase unbalanced load device |
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2016
- 2016-08-16 CN CN201610686422.8A patent/CN106099959A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347972A (en) * | 2011-05-24 | 2012-02-08 | 中国电力科学研究院 | Non-contact type device in rural grid power distribution station area and using method thereof |
| CN102751724A (en) * | 2012-06-19 | 2012-10-24 | 中国科学院计算技术研究所 | Prediction-based three-phase load scheduling method and device responding to demand side |
| CN104852394A (en) * | 2015-05-07 | 2015-08-19 | 陈鸽 | Power load balancing system applied to low-voltage power distribution network |
| CN205017015U (en) * | 2015-10-17 | 2016-02-03 | 国网福建省电力有限公司 | Novel adjustment of low -voltage power supply network three -phase unbalanced load device |
| CN105207239A (en) * | 2015-10-23 | 2015-12-30 | 国网山东乳山市供电公司 | Intelligent three phase load unbalance adjusting device and three phase load adjusting method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471127A (en) * | 2018-05-05 | 2018-08-31 | 石家庄科林电气股份有限公司 | A kind of three-phase load unbalance Automatic adjustment method realized using simulation transition algorithm |
| CN110838717A (en) * | 2019-11-15 | 2020-02-25 | 国网湖南综合能源服务有限公司 | Electric energy replacing efficient energy-saving control system for low-voltage distribution network and application method thereof |
| CN110838717B (en) * | 2019-11-15 | 2021-09-21 | 国网湖南综合能源服务有限公司 | Electric energy replacing efficient energy-saving control system for low-voltage distribution network and application method thereof |
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