CN103545921A - Urban distribution transformer area autonomous control optimization power system and monitoring system thereof - Google Patents
Urban distribution transformer area autonomous control optimization power system and monitoring system thereof Download PDFInfo
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- CN103545921A CN103545921A CN201310438466.5A CN201310438466A CN103545921A CN 103545921 A CN103545921 A CN 103545921A CN 201310438466 A CN201310438466 A CN 201310438466A CN 103545921 A CN103545921 A CN 103545921A
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention relates to an urban distribution transformer area autonomous control optimization power system and a monitoring system thereof. The monitoring system comprises a high-end user intelligent terminal, a transformer area intelligent base station set and a public transformation transformer area control main station set. The high-end user intelligent terminal is installed inside a high-end user distribution cabinet of distribution transformer area low-voltage outgoing wires and is provided with an EPON communication interface. The high-end user intelligent terminal is connected to an EPON fiber network through an optical network unit and an optical splitter. The high-end user intelligent terminal is in communication connection with the transformer area intelligent base station set through the EPON fiber network. The transformer area intelligent base station set is in communication connection with the public transformation transformer area control main station set through a wireless network. The high-end user intelligent terminal acquires reliable electricity and protection information of high-end users and uploads the information to the transformer area intelligent base station set through the EPON fiber network. The transformer area intelligent base station set collects transformer area information to the public transformation transformer area control main station set through the wireless communication network. Therefore, real-time operation conditions of high-end load groups in all public transformation transformer areas can be centrally monitored and managed.
Description
Technical field
The invention belongs to the Distribution Automation Technology field of power engineering, relate to the autonomous management and control in a kind of city power distribution platform district and optimize electric power system and supervisory control system thereof.
Background technology
Because power electronic technology is in the extensive use of power supply system and the access of all kinds of novel electric power load, a large amount of non-linear, impacts, wavy load in distribution system, have been increased, cause that distortion and harmonic pollution occur for power network current, voltage waveform, three-phase imbalance is on the rise, cause electric energy loss to increase the weight of, the fail safe of power consumption equipment reduces, and has weakened reliability and the economy of operation of power networks.Along with further developing of intelligent grid, on the basis of and economy reliable in Electrical Safety, customizable optimization and the interaction of distribution are had higher requirement.
The supply line of existing electric power system mainly realizes power reguirements; but also cannot realize for user's safe and reliable electricity consumption and the real-time management and control of protection information; especially for the monitoring of the power supply information of some important high-end users; cannot the realizing of these monitoring just cannot be avoided the fault occurring in responsible consumer power supply process in time, and loss is reduced to minimum.Existing intelligent terminal can be realized electric parameters collection, load calculating in real time, load control and Voltage Instability and Voltage unbalance protection; one that prevents supply power voltage and electric current changes and burns the functions such as power consumption equipment; if but directly increase intelligent terminal in electric power system; wiring, the communication line burden of whole supply line will be increased greatly; affect the signal transmission of whole circuit, maybe can cause supply line influenced.
Summary of the invention
The object of this invention is to provide the autonomous management and control in a kind of city power distribution platform district and optimize electric power system and supervisory control system thereof, to realize user's safe and reliable electricity consumption and the real-time management and control of protection information.
For achieving the above object, electric power system is optimized in the autonomous management and control in city power distribution platform of the present invention district, comprise supply line and the supervisory control system of powering for high-end user, described supervisory control system comprises high-end user intelligent terminal ,Tai district intelligent base station device He Gongbiantai district's management and control master station device, described high-end user intelligent terminal is installed in the high-end user power distribution cabinet of power distribution station low-pressure line-outgoing, high-end user intelligent terminal possesses EPON communication interface, by optical network unit and optical splitter access EPON fiber optic network; High-end user intelligent terminal is connected ，Tai district intelligent base station device with described district's intelligent base station device by the communication of EPON fiber optic network and connects by the communication of wireless network Yu Gongbiantai district management and control main website.
Described district's intelligent base station adopts IEC60870-5-104 agreement to be connected with the communication of high-end user intelligent terminal.
Described high-end user intelligent terminal is that IEC60870-5-104 server end ，Gong Biantai district intelligent base station is client.
Described wireless communication networks is 3G network.
Described Gong Biantai district's management and control master station device comprises for the interface with peripheral system communication.
The supervisory control system that electric power system is optimized in the autonomous management and control in city power distribution platform of the present invention district comprises high-end user intelligent terminal ,Tai district intelligent base station device He Gongbiantai district's management and control master station device, described high-end user intelligent terminal is installed in the high-end user power distribution cabinet of power distribution station low-pressure line-outgoing, high-end user intelligent terminal possesses EPON communication interface, by optical network unit and optical splitter access EPON fiber optic network; High-end user intelligent terminal is connected ，Tai district intelligent base station device with described district's intelligent base station device by the communication of EPON fiber optic network and connects by the communication of wireless network Yu Gongbiantai district management and control main website.
Described district's intelligent base station adopts IEC60870-5-104 agreement to be connected with the communication of high-end user intelligent terminal.
Described high-end user intelligent terminal is that IEC60870-5-104 server end ，Gong Biantai district intelligent base station is client.
Described wireless communication networks is 3G network.
Described Gong Biantai district's management and control master station device comprises for the interface with peripheral system communication.
Electric power system and supervisory control system thereof are optimized in the autonomous management and control in city power distribution platform of the present invention district, reliable electricity consumption and the protection information of high-end user intelligent terminal Real-time Collection high-end user, and by EPON fiber optic network, information is uploaded to platform district intelligent base station, Gai Tai district intelligent base station collects and controls for the information of each intelligent terminal, and be pooled to Gong Biantai district management and control main website by wireless communication networks Jiang Tai district information, realize the high end load group's in all Gong Biantai district real time execution situation centralized monitor and management, set up integrated distribution user profile model, carry out global statistics analysis (the power supply reliability statistics of high end load, comprehensive line loss statistics etc.) and power supply optimization.The quality of power supply is carried out to monitoring in real time and gather, realize adjusting control, the quality of power supply and the line loss backstage of overall high end load and analyze.
Accompanying drawing explanation
Fig. 1 is single urban electricity supply Gong Biantai district configuration schematic diagram;
Fig. 2 Shi Gongbiantai district secondary device configuration schematic diagram;
Fig. 3 is the autonomous managing and control system schematic diagram in city power distribution platform district.
Embodiment
As shown in Figure 1, single urban electricity supply Gong Biantai district includes the configuration mode such as public change and integrated case change on post, the public affairs change of standard configuration generally has three to four groups of low-pressure line-outgoings, every group of low-pressure line-outgoing extends to user by cable and overhead wire, by low-voltage distribution cabinet or feeder pillar, access high-end large user, for resident, further by small-sized feeder pillar, receive floor and load.The electrical integrated autonomous managing and control system of low pressure adapted based on Gong Biantai district high-end user group mainly be take the public change of distribution, low-pressure line-outgoing and low pressure high-end user and is realized the full process automatization management of adapted electricity as research object.
As shown in Fig. 2 Gong Biantai district secondary device allocation plan, in Gong Biantai district, single city, in high-end user power distribution cabinet by the important low-pressure line-outgoing in needs concern, high-end user intelligent terminal is installed, a plurality of intelligent terminals are by ONU and optical splitter access EPON fiber optic network, Gong Biantai district intelligent base station device and OLT equipment in becoming room/JP cabinet, public affairs are installed, adopt IEC60870-5-104 agreement and serial high-end user intelligent terminal information interaction, intelligent base station can access public power transformation amount collecting unit simultaneously.
As shown in Figure 3, it is management object that all Gong Biantai district that electric power system take in power supply area is optimized in the autonomous management and control in city power distribution platform district, realize the high end load group's in all Gong Biantai district real time execution situation centralized monitor and management, system adopts the layer distributed framework of terminating layer, Access Layer, system layer, and terminating layer mainly comprises the intelligent terminal that is installed on each high-end user outlet power distribution cabinet/minute electronic box; Access Layer mainly comprises near the intelligent communication base station equipment being installed on each district's distribution transforming, under complete the access of all intelligent terminals, to above completing platform district, be that the information of unit uploads to autonomous management and control main station system.
Below in conjunction with accompanying drawing embodiment of the present invention, be described.
As shown in Figure 3, the autonomous management and control in city power distribution platform district is optimized electric power system and is comprised supply line and supervisory control system, and this supervisory control system comprises intelligent base station ,Gong Biantai district, high-end user intelligent terminal ,Tai district management and control main website.Some high-end user (large user) intelligent terminals that are installed on power distribution station low-pressure line-outgoing end, by the EPON fiber optic network communication Dao Tai district intelligent base station of powering, when the information that intelligent base station completes each intelligent terminal is collected and controls, with other system interface communication of power distribution station, the intelligent base station in each district is pooled to city power distribution platform district's management and control main station system by 3G network Jiang Tai district information again, autonomous centralized decision-making and the regulation and control in a plurality of Gong Biantai district in feasible region, improve power supply reliability and rate of qualified voltage, the quality of power supply etc., and effectively reduce line loss.
At distribution Gong Biantai district low-pressure line-outgoing end, high-end (large user) intelligent terminal is installed; this terminal mainly completes that function comprises electric parameters collection, three-phase imbalance regulation and control of the calculating in real time of loading, load control, relaying protection, outlet level, Power Quality Detection, remote-control circuit breaker etc., possesses EPON communication interface.High-end user (large user) terminal provides EPON communication interface, in optical fiber mode, by after optical splitter, accesses OLT, then is pooled to the intelligent base station device in Gong Biantai district.
Gong Biantai district intelligent base station device mainly completes the three-phase imbalance regulation and control of become more meticulous line loss calculating, the reactive power compensation ,Tai district level of the information of each low-pressure line-outgoing intelligent terminal of platform district, anti-electricity-theft control, each low-pressure line-outgoing branched line, possesses 3G communication interface, access region Gong Biantai district management and control main station system.Communication between the intelligent base station device in high-end user (large user) terminal He Gongbiantai district adopts IEC60870-5-104 communication protocol, and high-end user terminal is that IEC60870-5-104 server end ，Gong Biantai district intelligent base station device is client.
Gong Biantai district management and control main website has the interface of communicating by letter with peripheral system, for concentrating according to Ge Gongbiantai district information in the region of uploading and the peripheral system information that receives by interface; Peripheral system information comprises power utilization information collection system, supply power voltage on-line monitoring system, distribution automation system and distribution generalized information system.
Region Gong Biantai district management and control main station system longitudinally receives the data of all Gong Biantai district intelligent base station in power supply area, all Gong Biantai district of take in power supply area is management object, realize the high end load group's in all Gong Biantai district real time execution situation centralized monitor and management, the integrated distribution user profile model of foundation based on IEC61968, and laterally collect and access power information acquisition system, supply power voltage on-line monitoring system, the existing existing system data such as distribution automation system, adopt colony's optimisation technique of knowledge-based inference and artificial intelligence, realize optimal path and optimum energy-conservation Tai district autonomous management, carry out global statistics analysis (the power supply reliability statistics of high end load, comprehensive line loss statistics etc.) and power supply optimization.The quality of power supply is carried out to monitoring in real time and gather, realize adjusting control, the quality of power supply and the line loss backstage of overall high end load and analyze, finally realize the integrated autonomous management and control of low-voltage distribution.
The autonomous management and control in this city power distribution platform district is optimized its relatively traditional extensive style of electric power system and is had incomparable advantage for distribution management, is to have merged sensor technology, automated control technology, cluster optimisation technique and network communications technology etc. in the advanced Real-time running system of one.
The autonomous management and control in city power distribution platform district is optimized electric power system, by uprise end load/large load in each city power distribution public affairs, customizable intelligent distribution terminal is installed, the public intelligent base station that becomes is installed in each Gong Biantai district, realize public varying duty group's autonomy optimization, regulation and control management, on the basis of load group's regional autonomy management, realize power load to a certain degree and the interaction of control centre, greatly alleviate the complexity of the system of urban distribution network automation, improve reliability simultaneously.Along with the mechanicss of communication such as radio communication, band optical fiber and power carrier and communications cost lower, the public intelligent base station that becomes is sent to load management center and distribution automation system in time by load operation real time information, important state information and warning information etc.
High-end user intelligent terminal adopts the integrated protection control technology towards high-end user, the public step-down of usining presses high-end large user as an independent low-voltage power supply unit, realize the safe and reliable electricity consumption of various power distribution networks extremely and under malfunction, comprehensive integrated electricity protection method comprises short circuit, overload protection, and off zero, the Voltage Instability that phase shortage and single-phase high resistant cause over the ground etc. and Voltage unbalance protection, prevent the ANOMALOUS VARIATIONS of supply power voltage and electric current and burn power consumption equipment, by protection and control device, guarantee the continuity for electricity consumption, reliability and power supply quality, avoid impact load loss, harmonic load loss and uncompensated load loss, fully demonstrating safety is also energy-conservation theory.
High-end user intelligent terminal adopts the customizable electric load control method towards high-end user, and technical way comprises:
A. load customizes power regulation: the rated capacity that the present invention declares according to user, setting exceeds electricity consumption ratio and carries out single-phase and Load Regulation three-phase, can independently set the definite value instructions such as coefficient, alarm number of times and reclosing number of times and interval time of floating carries out corresponding control mode and controls the modification of parameter, and can upload to the center of load control by communication modes, and notify client by aural warning.
B. three-phase power balance regulation and control: the present invention is according to the load electricity consumption situation of every phase feeder assembly, and in conjunction with the parameter request of coulomb balance, the residual current of the three-phase electricity consumption uncompensated load in customizable permission along separate routes, carries out corresponding single-phase load alarm and control.
C. closed-loop control: the present invention receives the tripping operation control command from higher level main website, alarm delay time by setting and the time of rationing the power supply are controlled to controlled on-load switch, terminal is notified client by aural warning simultaneously, and record the trip time, tripping operation wheel is inferior, at display screen, should show execution result, and active reporting is to higher level main website.
Power distribution station autonomous management and control main website as shown in Figure 3, all Gong Biantai district of take in power supply area is management object, realize the high end load group's in all Gong Biantai district real time execution situation centralized monitor and management, the integrated distribution user profile model of foundation based on IEC61968, access power information acquisition system, supply power voltage on-line monitoring system, distribution automation system etc. are existing system data now, carries out global statistics analysis (power supply reliability statistics, comprehensive line loss statistics etc.) and the power supply optimization of high end load.The quality of power supply is carried out to monitoring in real time and gather, realize adjusting control, the quality of power supply and the line loss backstage of overall high end load and analyze, finally realize the integrated autonomous management and control of low pressure adapted electricity.
Distribution is announced the platform district main technological means of autonomous management and control main website part and is comprised:
A. the panorama information model of the distribution high-end user based on IEC61968: realize distribution low-pressure side high-end user machine account data information, real-time information collection and history data store, comprise the real time datas such as the three-phase voltage, electric current of high end load, meritorious, idle, power factor, residual voltage, electric current, active energy, capacity of idle power, Voltage unbalance rate; Maximum load rate, the highest minimum voltage value and time of occurrence, the highest minimum current value occur and the time, the highest minimum load value and time of occurrence, rate of qualified voltage, the historical datas such as maximum unbalance rate and time.
B. anti-electricity-theft and line loss fine-grained management: it is the poor of total amount of power supply and total electricity volume sold that general bus damages, power-steeling quantity cannot correctly reflect among being mixed in line loss, stealing degree is on earth much, account for how many ratios, the present invention makes full use of autonomous management platform integrated data, and by collecting total amount of power supply, the electric weight gathering with user's side contrasts, utilize line loss computation model and method, the line loss of carrying out step by step the full power supply process in the platform district analysis that becomes more meticulous; According to platform district line loss historical variations curve and real-time line loss analyzing, find out line loss rate lifting factor ，An Tai district and carry out specific aim decomposition statistical analysis, provide to optimize and fall damage solution, realize overall line loss analyzing and optimize management and control.
C. quality of power supply computational methods and the quality of power supply are controlled: the present invention is around being mainly voltage indexes with the closely-related power quality index of user, as: voltage fluctuation, flickering, voltage falls, rises sharply, short supply interruption etc.Current quality problem is mainly harmonic problem, and it also can be reflected to a certain extent in voltage harmonic.By continuing to monitor of low pressure high-end user quality of voltage, in conjunction with voltage fall, the feature of voltage swells, calculating voltage magnitude shift, duration and the phase hit that may occur together in real time, the extent of injury of reflecting voltage quality is also carried out early warning fast.By to voltage sampling signal through fast fourier transform, obtain harmonic voltage amplitude, phase angle and total percent harmonic distortion of each harmonic component, utilize the technology such as mathematical method and artificial intelligence, complete the INTELLIGENT IDENTIFICATION classification of disturbance, the detection of harmonic source and location, worsen rational explanation and guidance to custom power quality index be provided.
D. Intelligent power failure stops labour management: the present invention, according to interruption duration and the power failure range of the plan that has a power failure, is combined with integration management and control platform data, is automatically identified each number of users and the distribution of this supply district by system, realizes intelligence notice forewarning management automatically.
E. high end load group's cluster optimization: the present invention is by balance scheduling and guiding to three-phase load, realize the load equalization of three-phase line load balancing and supply path, guarantee for the equilibrium of electricity consumption energy flow efficient, reduce electric energy loss, by intelligent optimization algorithm and economic means, regulate the electricity consumption of optimization load to arrange simultaneously, realization Pinggu of avoiding the peak hour, improves electricity consumption economy.
Claims (10)
1. electric power system is optimized in the autonomous management and control in city power distribution platform district, comprise supply line and the supervisory control system of powering for high-end user, it is characterized in that, described supervisory control system comprises high-end user intelligent terminal ,Tai district intelligent base station device He Gongbiantai district's management and control master station device, described high-end user intelligent terminal is installed in the high-end user power distribution cabinet of power distribution station low-pressure line-outgoing, high-end user intelligent terminal possesses EPON communication interface, by optical network unit and optical splitter access EPON fiber optic network; High-end user intelligent terminal is connected ，Tai district intelligent base station device with described district's intelligent base station device by the communication of EPON fiber optic network and connects by the communication of wireless network Yu Gongbiantai district management and control main website.
2. electric power system is optimized in the autonomous management and control in city power distribution platform according to claim 1 district, it is characterized in that: described district's intelligent base station adopts IEC60870-5-104 agreement to be connected with the communication of high-end user intelligent terminal.
3. electric power system is optimized in the autonomous management and control in city power distribution platform according to claim 2 district, it is characterized in that: described high-end user intelligent terminal is that IEC60870-5-104 server end ，Gong Biantai district intelligent base station is client.
4. electric power system is optimized in the autonomous management and control in city power distribution platform according to claim 1 district, it is characterized in that: described wireless communication networks is 3G network.
5. according to the autonomous management and control in the city power distribution platform district described in any one in claim 1-4, optimize electric power system, it is characterized in that: described Gong Biantai district's management and control master station device comprises for the interface with peripheral system communication.
6. the supervisory control system of electric power system is optimized in the autonomous management and control in city power distribution platform district, it is characterized in that: described supervisory control system comprises high-end user intelligent terminal ,Tai district intelligent base station device He Gongbiantai district's management and control master station device, described high-end user intelligent terminal is installed in the high-end user power distribution cabinet of power distribution station low-pressure line-outgoing, high-end user intelligent terminal possesses EPON communication interface, by optical network unit and optical splitter access EPON fiber optic network; High-end user intelligent terminal is connected ，Tai district intelligent base station device with described district's intelligent base station device by the communication of EPON fiber optic network and connects by the communication of wireless network Yu Gongbiantai district management and control main website.
7. the supervisory control system of electric power system is optimized in the autonomous management and control in city power distribution platform according to claim 6 district, it is characterized in that: described district's intelligent base station adopts IEC60870-5-104 agreement to be connected with the communication of high-end user intelligent terminal.
8. the supervisory control system of electric power system is optimized in the autonomous management and control in city power distribution platform according to claim 7 district, it is characterized in that: described high-end user intelligent terminal is that IEC60870-5-104 server end ，Gong Biantai district intelligent base station is client.
9. the supervisory control system of electric power system is optimized in the autonomous management and control in city power distribution platform according to claim 6 district, it is characterized in that: described wireless communication networks is 3G network.
10. according to the autonomous management and control in the city power distribution platform district described in any one in claim 6-9, optimize the supervisory control system of electric power system, it is characterized in that: described Gong Biantai district's management and control master station device comprises for the interface with peripheral system communication.
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| CN104330679A (en) * | 2014-11-25 | 2015-02-04 | 国家电网公司 | Electric energy quality monitoring system |
| CN104538958A (en) * | 2014-12-31 | 2015-04-22 | 广东电网有限责任公司佛山供电局 | Intelligent analysis method and system for power grid access point of electricity customer |
| CN104538958B (en) * | 2014-12-31 | 2015-10-21 | 广东电网有限责任公司佛山供电局 | The intelligent analysis method of Electricity customers electrical network access point and system |
| CN104931802A (en) * | 2015-03-26 | 2015-09-23 | 广东电网有限责任公司江门供电局 | Outgoing line load three-phase integration protection, regulation and control method |
| CN106097147A (en) * | 2016-06-20 | 2016-11-09 | 国网江苏省电力公司泰州供电公司 | A kind of customer power supply paths based on electricity consumption acquisition system data intelligent analysis system |
| CN106788707A (en) * | 2016-12-13 | 2017-05-31 | 国家电网公司 | A kind of method for leading passive probe cooperative adapted electric channel quality |
| CN106788707B (en) * | 2016-12-13 | 2019-03-29 | 国家电网公司 | A method of leading passive probe cooperative adapted electric channel quality |
| CN110674158A (en) * | 2019-10-15 | 2020-01-10 | 广东电网有限责任公司 | Method and system for automatically updating local area for low-voltage user |
| CN110674158B (en) * | 2019-10-15 | 2022-02-15 | 广东电网有限责任公司 | Method and system for automatically updating local area for low-voltage user |
| CN113489147A (en) * | 2021-06-29 | 2021-10-08 | 海南电网有限责任公司 | Harmonic monitoring system |
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|---|---|
| CN103545921B (en) | 2017-09-26 |
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