CN102751733B - On-line three-phase load unbalance processing method suitable for low-voltage distribution network - Google Patents
On-line three-phase load unbalance processing method suitable for low-voltage distribution network Download PDFInfo
- Publication number
- CN102751733B CN102751733B CN201210214840.9A CN201210214840A CN102751733B CN 102751733 B CN102751733 B CN 102751733B CN 201210214840 A CN201210214840 A CN 201210214840A CN 102751733 B CN102751733 B CN 102751733B
- Authority
- CN
- China
- Prior art keywords
- load
- phase
- low
- monitoring
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003672 processing method Methods 0.000 title abstract 3
- 238000012544 monitoring process Methods 0.000 claims abstract description 64
- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 12
- 230000001131 transforming effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Classifications
-
- 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 provides an on-line three-phase load unbalance processing method suitable for a low-voltage distribution network. The on-line three-phase load unbalance processing method comprises the following steps of: monitoring three-phase load by three-phase load monitoring units on the low voltage side of a distribution transformer, and transmitting monitoring data to three-phase load unbalance monitoring units of the distribution transformer; judging whether the three-phase load unbalance exceeds a standard value or not by the three-phase load unbalance monitoring units of the distribution transformer; if the three-phase load unbalance exceeds the standard value, transmitting signals to an on-line load phase modulation control unit by a communication unit; judging whether the three-phase load unbalance of the distribution transformer is caused by the three-phase load unbalance of a main low-voltage circuit or not by the on-line load phase modulation control unit; and if so, setting an on-line load phase modulation strategy according to the monitoring data of the load monitoring units of branches of three phases of the main low-voltage circuit, sending a control command to an on-line load phase modulation switch combination unit by an on-line load phase modulation judging and controlling unit, and switching the load phases of the branches of users so as to realize the on-line three-phase load unbalance processing.
Description
Technical field
The present invention relates to field of power, be specifically related to a kind of online improvement three-phase load unbalanced method that is applicable to low-voltage network.
Background technology
Power distribution station, certain areas low-voltage circuit is longer, and there is a large amount of single-phase loads, power distribution station three-phase load energy imbalance is general, three-phase current is unequal makes to exist on the neutral line unsymmetrical current, cause distribution transformer and low-voltage circuit loss to increase, the actual reduction of exerting oneself of distribution transformer, and the user's low voltage that easily causes heavy load to go up mutually, cannot meet urban residents' normal production and household electricity demand.Although by adopting three-phase imbalance control measures can reduce to a certain extent the unbalanced order of severity of power distribution station three-phase load, but randomness and uncertainty due to power load, and the uneven situation of three-phase load has a stronger real-time, rely on manually and cannot carry out online frequent adjustment according to actual load unbalance condition, and have to a certain extent potential safety hazard, off-line is adjusted each sharing of load of going up mutually of low-voltage circuit will inevitably affect the power supply reliability to user.The mode that part rural area employing is at present carried out alternate reactive power compensation in distribution low-voltage side is adjusted three-phase load unbalance condition, but which can only be adjusted distribution transforming self problem to a certain extent, and can not solve the uneven situation of three-phase load of low-voltage circuit.The proposition of this method can effectively solve countryside low-voltage electric distribution network three-phase load imbalance problem, the three-phase load that can realize real-time adjustment low pressure basic routing line distributes, make the load on basic routing line and distribution transforming self A, B, C three-phase reach as far as possible balance, countryside low-voltage electric distribution network three-phase load degree of unbalance is controlled in acceptability limit.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of online improvement three-phase load unbalanced method that is applicable to low-voltage network, data communication between distribution low-voltage side monitoring point and low pressure trunk hinge branch monitoring point is provided, the uneven situation of real-time judgment distribution low-voltage side three-phase load and low pressure backbone Ge Xiang branch payload, and real-time online load phase modulation, reach and administer the unbalanced object of low-voltage network three-phase load, effectively reduce Low-voltage Line Loss, improve supply power voltage quality.
A kind of online improvement three-phase load unbalanced method that is applicable to low-voltage network provided by the invention, its improvements are, described method comprises the steps:
(1) distribution transformer low-pressure side three-phase load monitoring means monitoring three-phase load size, and Monitoring Data is passed to distribution transformer three-phase load degree of unbalance monitoring means;
(2) described distribution transformer three-phase load degree of unbalance monitoring means judges whether value of being above standard of three-phase load degree of unbalance, if the value of being above standard is passed to signal at specific electric load phase modulation control unit by downlink communication unit I and uplink communication unit II, otherwise return to step (1);
(3) described in, at specific electric load phase modulation control unit, judge whether distribution transformer three-phase load degree of unbalance is caused by low pressure basic routing line three-phase load degree of unbalance, if customize at specific electric load phase modulation strategy according to the Monitoring Data of each branch's load monitoring unit of low pressure basic routing line three-phase, by at specific electric load phase modulation judgement control unit to sending control command at specific electric load phase modulation diverter switch assembled unit, otherwise in kind step is analyzed successively and judge whether each branch's load of other low pressure basic routing line three-phases of distribution transformer exists three-phase load imbalance situation;
(4) described at specific electric load phase modulation diverter switch assembled unit according to described control command to the separate switching of loading of user branch, realize that online to administer three-phase load uneven.
Wherein, each branch's load of low pressure basic routing line three-phase is connected with each phase line of backbone at specific electric load phase modulation diverter switch assembled unit by described; Described at specific electric load phase modulation control unit, to take distribution transformer low-pressure side three-phase load and low pressure backbone three-phrase burden balance be target, controls each branch's load of three-phase and be connected to corresponding phase line, realizes load and redistributes.
Wherein, the real time data of described distribution transformer low-pressure side three-phase load monitoring means monitoring is passed to information management system by uplink communication unit I.
Wherein, the described standard value of step (2) is according to the load management of industry standard SD292 < < overhead distribution and equipment operating standard > >, the load unbalanced degree of Three-Phase Transformer to be required to set, and its set point is 15%.
Wherein, step (4) is described is connected with user branch on-load switch by each phase branch line terminal board at specific electric load phase modulation diverter switch assembled unit.
Wherein, step (3) is described is according to the data of the data of described distribution transformer low-pressure side three-phase load monitoring means monitoring and the monitoring of low pressure basic routing line three-phase load monitoring means in specific electric load phase modulation control unit judgement distribution transformer three-phase load degree of unbalance, if low-pressure side basic routing line three-phase load imbalance value of being above standard, judge that this low pressure basic routing line three-phase load imbalance is to cause the unbalanced reason of distribution transformer three-phase load, need regulation and control.
Compared with the prior art, beneficial effect of the present invention is:
The present invention can realize online without arc load phase modulation, maintenance power supply continuity, and load phase modulation process is without impact, guarantees low-voltage network power supply reliability and power supply quality.
The present invention can provide the data communication between distribution low-voltage side monitoring point and low pressure trunk hinge branch monitoring point, the uneven situation of real-time judgment distribution low-voltage side three-phase load and low pressure backbone Ge Xiang branch payload, and then be formed on specific electric load phase modulation control strategy, by multichannel (Huo18 road, Ru36 road) code switch, cut-off to control and realize at specific electric load phase modulation, reach and administer the unbalanced object of low-voltage network three-phase load.
The invention solves power supply enterprise and administer the uneven difficult practical problem of low-voltage network three-phase load, provide the core technologies such as comprehensive utilization intellectual monitoring, telecommunication and Based Intelligent Control and multi-channel switch to administer online the unbalanced method of low-voltage network three-phase load, effectively promote distribution transforming power supply capacity, reduce low-voltage circuit loss, improve customer power supply quality of voltage.
Accompanying drawing explanation
Fig. 1 is that low-voltage network provided by the invention is administered online the uneven function of three-phase load and realized block diagram.
Fig. 2 is the specific electric load phase modulation switching principle that is controlled at provided by the invention.
Fig. 3 is provided by the invention at the initial shape of specific electric load phase modulation diverter switch.
Fig. 4 is the diverter switch after specific electric load phase modulation that is controlled at provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The present invention makes full use of advanced monitoring, communication and automatic control technology, according to each phase load size of distribution low-voltage side and three-phase load degree of unbalance monitoring estimate of situation, carry out the alternate switching of switch multichannel, realize the online phase modulation of low-voltage load, in the situation that not affecting power supply reliability, make distribution low-voltage side three-phase load automatically reach balance and distribute, thereby provide a kind of low-voltage network to administer online three-phase load unbalanced method.It utilizes the core technologies such as intellectual monitoring, telecommunication and Based Intelligent Control, first set up two-stage monitoring means, and set up two-stage or three grades of communication networks, be formed on specific electric load phase modulation judgement decision center, be combined in the combination of specific electric load phase modulation diverter switch, and all possess online separate conversion condition by configuration Shi Meixiang branch load, form " monitoring---communication---strategy judgement---is controlled " circulating system, be configured to low-voltage network and administer online three-phase load unbalanced method.
Fig. 1 is that low-voltage network is administered online the uneven function of three-phase load and realized block diagram.As shown in Figure 1, mainly comprise distribution low-voltage side dispensing unit and low pressure backbone branch hinge dispensing unit two parts, wherein distribution low-voltage side dispensing unit comprises again uplink communication unit, distribution low-voltage side A, B, C three-phase load monitoring means, distribution transforming three-phase load degree of unbalance monitoring means, downlink communication unit; Low pressure backbone branch hinge dispensing unit comprises uplink communication unit, low pressure basic routing line A, B, C three-phase load monitoring means; A, B, each branch's load monitoring unit of C three-phase, at specific electric load phase modulation control unit, at specific electric load phase modulation diverter switch assembled unit.Distribution low-voltage side A, B, C three-phase load monitoring means can be realized and being communicated by letter by the uplink communication unit background information management system existing or newly-built with county power supply enterprise; At specific electric load phase modulation diverter switch assembled unit, can be connected with customer charge by each phase branch line terminal board.
According to distribution low-voltage side A, B, the monitoring situation of C three-phase load monitoring means and distribution transforming three-phase load degree of unbalance monitoring means, if distribution transforming three-phase load degree of unbalance value of being above standard (being 15%), by downlink communication unit with in specific electric load phase modulation control unit realization, communicate by letter, at specific electric load phase modulation control unit again according to distribution low-voltage side A, B, to the distribution low-voltage side of payload, each monitors situation and low pressure basic routing line A to C three-phase load monitoring means mutually, B, C three-phase load monitoring means is to low pressure basic routing line A, B, the monitoring situation of C three-phase load, judges whether it is that this basic routing line three-phase load imbalance causes, if it is again according to low pressure basic routing line A, B, the monitoring situation of each branch's load monitoring unit of C three-phase, be formed on specific electric load phase modulation strategy, by sending control command at specific electric load phase modulation control unit, be controlled at specific electric load phase modulation diverter switch combination and realize branch's separate switching of loading, reach low-voltage network and administer online the unbalanced object of three-phase load.
In specific electric load phase modulation control unit judgement distribution transformer three-phase load degree of unbalance, be according to the data of the data of described distribution transformer low-pressure side three-phase load monitoring means monitoring and the monitoring of low pressure basic routing line three-phase load monitoring means, if this low pressure basic routing line three-phase load imbalance value of being above standard 15%, judge that this low pressure basic routing line three-phase load imbalance is to cause one of unbalanced reason of distribution transformer three-phase load, need to be adjusted; If this low pressure basic routing line three-phase load imbalance value of not being above standard (15%), judge that this low pressure basic routing line is not to cause the unbalanced main cause of distribution transformer three-phase load, in kind step is analyzed successively and is judged whether each branch of other low pressure basic routing line three-phases load of distribution transformer exists the uneven situation of three-phase load.
Fig. 2 is for being controlled at specific electric load phase modulation switching principle figure.Low-voltage platform area basic routing line A, B, each branch's load of C three-phase are by being connected with each phase line of backbone in the combination of specific electric load phasing switch, by at specific electric load phase modulation control unit according to the monitoring situation of each phase load, take distribution low-voltage side three-phase load and low pressure backbone three-phrase burden balance is target, control A, B, each branch's load of C three-phase are connected to corresponding phase line, realize load and redistribute.
Fig. 3 is in specific electric load phase modulation diverter switch initial condition.A phase branch load all combines by diverter switch the A phase of receiving low pressure backbone, and carries out A and identify mutually, and the A that is just connected to low pressure backbone as the A11-A1n user on A phase branch line 1 goes up mutually; In like manner, B phase branch load all combines by diverter switch the B phase of receiving low pressure backbone, and carries out B and identify mutually; C phase branch load all combines by diverter switch the C phase of receiving low pressure backbone, and carries out C and identify mutually.
Fig. 4 is for being controlled at diverter switch state after specific electric load phase modulation.According to distribution low-voltage side A, B, C three-phase load monitoring means, distribution transforming three-phase load degree of unbalance monitoring means, low pressure basic routing line A, B, C three-phase load monitoring means; A, B, each branch's load monitoring unit of C three-phase, and comprehensively judge at specific electric load phase modulation control unit, distribution low-voltage side B phase load and low pressure backbone B phase load kick the beam, caused the uneven balance of distribution low-voltage side three-phase load and low pressure backbone three-phase load, the B that customer charge on A phase branch line 1 and A phase branch line i need be connected to low pressure backbone goes up mutually, and corresponding specific electric load sign becomes B from A; Also need the B that customer charge on C phase branch line 1 and C phase branch line i is connected to low pressure backbone to go up mutually, corresponding specific electric load sign becomes B from C simultaneously, realizes the uneven improvement of the online three-phase load of low-voltage network.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (1)
1. an online improvement three-phase load unbalanced method that is applicable to low-voltage network, is characterized in that, described method comprises the steps:
(1) distribution transformer low-pressure side three-phase load monitoring means monitoring three-phase load size, and Monitoring Data is passed to distribution transformer three-phase load degree of unbalance monitoring means;
(2) described distribution transformer three-phase load degree of unbalance monitoring means judges whether value of being above standard of three-phase load degree of unbalance, if the value of being above standard is passed to signal at specific electric load phase modulation control unit by downlink communication unit I and uplink communication unit II, otherwise return to step (1);
(3) described in, at specific electric load phase modulation control unit, judge whether distribution transformer three-phase load degree of unbalance is caused by low pressure basic routing line three-phase load degree of unbalance, if customize at specific electric load phase modulation strategy according to the Monitoring Data of each branch's load monitoring unit of low pressure basic routing line three-phase, by at specific electric load phase modulation control unit to sending control command at specific electric load phase modulation diverter switch assembled unit, otherwise judge whether each branch of other low pressure basic routing line three-phases load of distribution transformer exists the uneven situation of three-phase load;
(4) described at specific electric load phase modulation diverter switch assembled unit according to described control command to the separate switching of loading of user branch, realize that online to administer three-phase load uneven;
Each branch's load of low pressure basic routing line three-phase is connected with each phase line of backbone at specific electric load phase modulation diverter switch assembled unit by described; Described at specific electric load phase modulation control unit, to take distribution transformer low-pressure side three-phase load and low pressure backbone three-phrase burden balance be target, controls each branch's load of three-phase and be connected to corresponding phase line, realizes load and redistributes;
The real time data of described distribution transformer low-pressure side three-phase load monitoring means monitoring is passed to information management system by uplink communication unit I;
Step (3) is described is according to the data of the data of described distribution transformer low-pressure side three-phase load monitoring means monitoring and the monitoring of low pressure basic routing line three-phase load monitoring means in specific electric load phase modulation control unit judgement distribution transformer three-phase load degree of unbalance, if the low pressure basic routing line three-phase load imbalance value of being above standard, judges that this low pressure basic routing line three-phase load imbalance is to cause the unbalanced reason of distribution transformer three-phase load;
The described standard value of step (2) is according to the load management of industry standard SD292 < < overhead distribution and equipment operating standard > >, the load unbalanced degree of Three-Phase Transformer to be required to set, and its set point is 15%;
Step (4) is described to be connected with user branch on-load switch by each phase branch line terminal board at specific electric load phase modulation diverter switch assembled unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210214840.9A CN102751733B (en) | 2012-06-26 | 2012-06-26 | On-line three-phase load unbalance processing method suitable for low-voltage distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210214840.9A CN102751733B (en) | 2012-06-26 | 2012-06-26 | On-line three-phase load unbalance processing method suitable for low-voltage distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102751733A CN102751733A (en) | 2012-10-24 |
| CN102751733B true CN102751733B (en) | 2014-07-23 |
Family
ID=47031707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210214840.9A Active CN102751733B (en) | 2012-06-26 | 2012-06-26 | On-line three-phase load unbalance processing method suitable for low-voltage distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102751733B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106022973A (en) * | 2016-07-04 | 2016-10-12 | 国网江苏省电力公司扬州供电公司 | Greedy algorithm-based scheduling policy for three-phase load balance of real-time-allocating distribution network |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116088B (en) * | 2013-01-14 | 2014-12-10 | 湖北省电力公司电力科学研究院 | Large-scale transformer three-phase parameter inconsistent operation analysis method |
| CN104253431A (en) * | 2013-06-27 | 2014-12-31 | 国家电网公司 | Branching device |
| CN103337867B (en) * | 2013-06-28 | 2015-08-05 | 国家电网公司 | A kind of low-voltage load is in Linear Phasing Device and phase modulation method thereof |
| CN103368190B (en) * | 2013-07-17 | 2015-08-05 | 国家电网公司 | The online phase modulation control method of a kind of low-voltage load |
| CN103823126A (en) * | 2014-03-04 | 2014-05-28 | 中国神华能源股份有限公司 | Method and system for monitoring three-phase current unbalance |
| CN104659797B (en) * | 2015-02-10 | 2019-01-29 | 卢松 | A kind of method that distribution low-pressure side intelligent electric power load three-phase imbalance is administered |
| CN104660056B (en) * | 2015-02-17 | 2017-06-06 | 国家电网公司 | A kind of general three-phase commutation switching main circuit and its method of work |
| CN104852396B (en) * | 2015-05-07 | 2017-04-05 | 陈鸽 | A kind of electrical load equalization methods and its device for low-voltage network |
| CN107979107B (en) * | 2015-05-07 | 2020-04-21 | 江苏红豆电力工程技术有限公司 | Power load balancing system for low-voltage power distribution network |
| CN105117854B (en) * | 2015-09-07 | 2018-08-31 | 国家电网公司 | A kind of taiwan area low pressure split-phase line loss management system of local electric network and method |
| CN105515025B (en) * | 2015-12-23 | 2018-10-16 | 国网甘肃省电力公司金昌供电公司 | A kind of three-phase imbalance optimization method of low-voltage network |
| CN105591396B (en) * | 2016-02-29 | 2018-06-26 | 国家电网公司 | The three-phase imbalance guard method of the distribution transformer of low-voltage distributing line and device |
| CN105790290A (en) * | 2016-04-29 | 2016-07-20 | 广州开能电气实业有限公司 | Unbalance adjustment system for low-voltage station area distribution transformer secondary side |
| CN105720595B (en) * | 2016-05-02 | 2018-07-13 | 广州开能电气实业有限公司 | A kind of three-phase load unbalance adjusting apparatus |
| CN105896693A (en) * | 2016-05-17 | 2016-08-24 | 中能易电新能源技术有限公司 | Charging circuit and charging method and apparatus for intelligent alternating current charging pile |
| CN106684894A (en) * | 2016-12-13 | 2017-05-17 | 国网北京市电力公司 | Method and device for regulating three-phase loads of low-voltage power grid |
| CN107247194B (en) * | 2017-07-17 | 2020-04-14 | 国网江西省电力公司电力科学研究院 | Method and device for detecting phase modulation effect of unbalanced transformer area |
| CN108964093A (en) * | 2018-06-28 | 2018-12-07 | 国网天津市电力公司电力科学研究院 | The low-voltage distribution network three-phase imbalance governing system and method for phase-change switch clustered control |
| CN109193712B (en) * | 2018-11-22 | 2019-05-10 | 国网山东省电力公司莱西市供电公司 | A kind of distribution station arrangement of the three-phase load unbalance adjust automatically of no off interval |
| CN109885922B (en) * | 2019-02-14 | 2022-12-30 | 国网江西省电力有限公司电力科学研究院 | Automatic display method of distribution line standardization schematic diagram |
| CN109900996A (en) * | 2019-04-10 | 2019-06-18 | 浙江蓝嘉电力科技有限公司 | A kind of simulating grid high power three-phase imbalance adjusts and controlling device |
| CN110994650A (en) * | 2019-12-27 | 2020-04-10 | 吉林建筑科技学院 | Three-phase load unbalance intelligent balance adjusting method for electric heating |
| CN112366736B (en) * | 2020-11-11 | 2023-03-31 | 广东电网有限责任公司 | Phase modulation method and device for power distribution network |
| CN115378001B (en) * | 2022-10-25 | 2023-03-24 | 南昌科晨电力试验研究有限公司 | Low-voltage distribution network artificial phase modulation method and system based on load periodicity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1185241A (en) * | 1995-05-22 | 1998-06-17 | 目标－高技术电子学公司 | Apparatus for and method of evenly distributing electrical load across three-phase power distribution network |
| CN1240058A (en) * | 1996-12-09 | 1999-12-29 | 目标－高技术电子学公司 | Apparatus for and method of evenly distributing electrical load across n-phase power distribution network |
| CN1929233A (en) * | 2005-09-07 | 2007-03-14 | 北京英斯泰克视频技术有限公司 | Three load intelligent self-balancing method and system |
| CN101013816A (en) * | 2007-01-29 | 2007-08-08 | 贾书洪 | Power intelligent seamless three-phase leveling system |
| CN102394501A (en) * | 2011-03-18 | 2012-03-28 | 北京潞能麒麟电力设备有限公司 | Energy-saving method and device based on power grid load dynamic balance |
-
2012
- 2012-06-26 CN CN201210214840.9A patent/CN102751733B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1185241A (en) * | 1995-05-22 | 1998-06-17 | 目标－高技术电子学公司 | Apparatus for and method of evenly distributing electrical load across three-phase power distribution network |
| CN1240058A (en) * | 1996-12-09 | 1999-12-29 | 目标－高技术电子学公司 | Apparatus for and method of evenly distributing electrical load across n-phase power distribution network |
| CN1929233A (en) * | 2005-09-07 | 2007-03-14 | 北京英斯泰克视频技术有限公司 | Three load intelligent self-balancing method and system |
| CN101013816A (en) * | 2007-01-29 | 2007-08-08 | 贾书洪 | Power intelligent seamless three-phase leveling system |
| CN102394501A (en) * | 2011-03-18 | 2012-03-28 | 北京潞能麒麟电力设备有限公司 | Energy-saving method and device based on power grid load dynamic balance |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106022973A (en) * | 2016-07-04 | 2016-10-12 | 国网江苏省电力公司扬州供电公司 | Greedy algorithm-based scheduling policy for three-phase load balance of real-time-allocating distribution network |
| CN106022973B (en) * | 2016-07-04 | 2019-08-30 | 国网江苏省电力有限公司扬州供电分公司 | A kind of scheduling strategy of the real-time distribution distribution three-phrase burden balance based on greedy algorithm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102751733A (en) | 2012-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102751733B (en) | On-line three-phase load unbalance processing method suitable for low-voltage distribution network | |
| CN101340095B (en) | Reactive layered self-adapting control method for power distribution network | |
| CN102986110B (en) | Multiterminal DC transmission system and method and the device controlled for it | |
| CN104092229A (en) | Distributed type power supply zone branch circuit three-phase load current balance monitoring method and device | |
| CN106033891B (en) | A kind of automatic commutation device of low-voltage load parallel on-line and its operating method | |
| CN107681672A (en) | The interactive approach of charging pile interactive terminal and charging pile access power network | |
| KR101176100B1 (en) | Power control system in micro-grid | |
| CN207442454U (en) | Intelligent commutation device | |
| CN111224402A (en) | Direct-current multi-microgrid system and control method | |
| CN104410165B (en) | A kind of method and system of micro-internetworking | |
| CN106169758A (en) | A kind of device and method of automatic raising low voltage three-phase line end voltage | |
| CN103474985A (en) | Realization method for function of adaptive load type distribution transformer | |
| CN107204624B (en) | Power transmission system suitable for global energy Internet and control method thereof | |
| CN107134808B (en) | Automatic control system and control method for transformer group | |
| CN202940470U (en) | Double-bus wiring system | |
| CN111371095A (en) | Intelligent switching system and method for platform load transfer | |
| CN209343923U (en) | A kind of homo-phase traction transformer | |
| CN115411723B (en) | Network source load multi-terminal interconnection low-voltage distribution network control system based on load migration strategy | |
| CN208673836U (en) | A kind of compensator transformer | |
| RU2349012C1 (en) | METHOD OF POWER LOSSES REDUCTION IN 6( 10)-0,4 kV DISTRIBUTING CIRCUITS | |
| CN208796792U (en) | A kind of traction-compensator transformer | |
| CN210062722U (en) | Electrified railway cophase traction power supply system | |
| CN207910472U (en) | A kind of flexibility multimode switch | |
| CN208797589U (en) | A kind of negative sequence compensation device of traction-compensator transformer | |
| CN1595757A (en) | Method for optimizing power load of power consuming enterprise |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130508 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130508 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant after: China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Power Research Institute |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA STATE GRID ANHUI E Free format text: FORMER OWNER: STATE GRID CORPORATION OF CHINA Effective date: 20150319 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jinli Inventor after: Ding Nan Inventor after: Sheng Wanxing Inventor after: Wu Ping Inventor after: Fang Hengfu Inventor after: Liang Ying Inventor after: An Siqing Inventor after: Song Qipeng Inventor after: Chen Feng Inventor after: Li Liang Inventor before: Wang Jinli Inventor before: Sheng Wanxing Inventor before: Fang Hengfu Inventor before: Song Qipeng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG JINLI SHENG WANXING FANG HENGFU SONG QIPENG TO: WANG JINLI SHENG WANXING WU PING FANG HENGFU LIANG YING AN SIQING SONG QIPENG CHEN FENG LI LIANG DING NAN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150319 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee after: China Electric Power Research Institute Patentee after: State Grid Corporation of China Patentee after: State Grid Anhui Electric Power Company Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute Patentee before: State Grid Corporation of China |