CN202817901U - Intelligent micro electrical network distribution system - Google Patents
Intelligent micro electrical network distribution system Download PDFInfo
- Publication number
- CN202817901U CN202817901U CN2012204344993U CN201220434499U CN202817901U CN 202817901 U CN202817901 U CN 202817901U CN 2012204344993 U CN2012204344993 U CN 2012204344993U CN 201220434499 U CN201220434499 U CN 201220434499U CN 202817901 U CN202817901 U CN 202817901U
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- China
- Prior art keywords
- power
- power supply
- distribution system
- electrical network
- load
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- 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.)
- Expired - Fee Related
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase 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
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to an electric power control system, and specially relates to a micro electrical network distribution system. The micro electrical network distribution system comprises two 10 kV power supplies, each 10 kV power supply is connected with an intelligent box type transformer station, the other end of each intelligent box type transformer station is connected with a user load, and the 10 kV power supplies are connected with a capacitor I. The 10 kV and 0.4 kV power supply networks of the whole system guarantee the power supply reliability of the system. The power supply quality is guaranteed through the parallel operation of a transformer, power failure frequency and time caused by faults are reduced, and the power failure scope is reduced. Simultaneously, power failure time for equipment maintenance is minimized and shortened correspondingly. Simultaneously, through network communication, one phase is selected from A, B, C phases for supplying power for a load through automatic analyzing calculation determination of the system or manual operation by a user, and three-phase imbalance is eliminated.
Description
Technical field
The utility model relates to a kind of electric control system, relates in particular to a kind of distribution system of micro power network.
Background technology
Along with progressively going deep into of economic system reform, the compartmentalization economic development is very fast, the scale construction of each living community, school, enterprises and institutions.Resident family's density increases greatly simultaneously, particularly the straight line along with the each household power consumption rises, the residential quarter power load sharply increases, the distribution system capacity increases sharply, that the single device capacity is more and more large on the one hand, number of devices also increases greatly on the other hand, and the control and management of system is had higher requirement.
Existing distribution system, each user is supply power mode independently, whole supply network does not have unified Control and Schedule, can not realize looped network logic and many power supplys looped network function, as long as break down in a place, then can have a power failure the influence area, operational efficiency is low, and failure rate is higher.Simultaneously, because user load is uneven, caused the three-phase imbalance of system, produced and seriously influence.
Summary of the invention
In order to overcome defects, problem to be solved in the utility model, be exactly low for prior art distribution system operational efficiency, the shortcoming that failure rate is high provides a kind of and can improve power supply reliability and power supply quality, better manages the intelligent micro-grid distribution system of power supply unit.
To achieve these goals, the utility model is achieved by the following technical solution:
A kind of intelligent micro-grid distribution system, this system comprises two 10KV power supplys, each 10KV power supply is connected with an intelligent box substation, and the other end of each intelligent box substation is connected with user load by the load phase switcher, and the 10KV power supply is connected with the capacitor I.
This system also is provided with two 0.4KV power supplys and is connected with intelligent box substation respectively, and one of them 0.4KV power supply is connected with the capacitor II, and another 0.4KV power supply is connected with distributed power source.
Be provided with a plurality of line switchings in this system in the circuit.
Operation principle of the present utility model:
1, the utility model provides a kind of and can improve power supply reliability and power supply quality, better manages the intelligent micro-grid distribution system of power supply unit.
2, the utility model is connected with electrical network by the real-time distribution network state analysis of system or user's switching, realizes the powering mode that whole little mains supply is mutually backed up power supply and powered simultaneously by two 10kV power supplys.
3, the utility model utilization load phase switcher can manually select one to carry out mutually load supplying from A, B, C three-phase according to system's automatic analysis calculating judgement or user, eliminates owing to the uneven three-phase imbalance that causes of electricity consumption.
4, intelligent micro-grid distribution system terminal comprises testing circuit, A/D converter, actuator, controller and communication interface.The testing circuit respectively parameters such as its corresponding voltage, electric current detects, and testing result process A/D conversion becomes digital signal and is input to controller.Controller is processed or is split the pass by communication driving actuator and control by internal processes according to relevant parameter, realizes the distribution control of system.
The beneficial effects of the utility model:
1. the employing automatic control technology realizes the distribution of little electrical network, has improved the operational efficiency of distribution system, has reduced failure rate.Realize many power supplys looped network function, and realize network remote control, improve power supply reliability, improve power supply quality, reduce fault outage number of times and interruption duration, dwindle power failure range.While is corresponding minimizing and shortening overhaul of the equipments interruption duration also.
2. after the intelligent micro-grid distribution system clean energy resource that will comprise the various renewable energy power generations such as photovoltaic generation, wind power generation is incorporated supply network into, can significantly improve power supply reliability and the quality of power supply of load, also can strong support be provided in case of emergency for large electrical network, being one of development trend of 21 century electric power system, also is the important component part that intelligent grid is built.
3. the reactive power compensation point in the zone carries out unified allocation of resources, adopts optimum compensation point and compensation rate, further reduces distribution line power and falls damage, reaches whole Reactive Power Balance.
In the low-voltage network because the existence of single-phase load, the factors such as asynchronism of uncontrollable increase-volume of single-phase user, the access of great power single phase load and single-phase load electricity consumption, cause the tri-phase unbalance factor of distribution transforming transformer increasing, even surpassed the critical value of design of transformer.The three-phase voltage that asymmetric operation causes and the imbalance of electric current can produce adverse influence to electric power system and power equipment.Calculate by the micro-grid system precision net, analyze the threephase load unbalance factor, according to the three-phase imbalance degree, utilize load phase switcher control customer power supply mode.Solve owing to the uneven three-phase imbalance that causes of user power utilization.
5. master station according to the size of customer charge amount, carries out switching to transformer capacity according to the data analysis of communication network, has reduced transformer noload losses, has prolonged transformer useful life.
Description of drawings
Fig. 1 is the theory structure schematic diagram of utility model.
Fig. 2 is the gridless control chart of utility model.
Fig. 3 is the terminal schematic diagram of utility model.
Embodiment
Be elaborated below in conjunction with accompanying drawing 1,2,3 pairs of the utility model:
Fig. 1 is the theory structure schematic diagram of utility model.This system comprises two 10KV power supplys 1, and each 10KV power supply 1 is connected with an intelligent box substation 2, and the other end of each intelligent box substation 2 is connected with user load 4 by load phase switcher 3, and 10KV power supply 1 is connected with capacitor I 5.
This system also is provided with two 0.4KV power supplys 6 and is connected with intelligent box substation 2 respectively, and one of them 0.4KV power supply 6 is connected with capacitor II 7, and another 0.4KV power supply 6 is connected with distributed power source 8.Be provided with a plurality of line switchings 9 in this system in the circuit.
Two supply networks of the 10kV of whole system and 0.4kV have guaranteed the reliability of system power supply.The transformers connected in parallel operation has guaranteed power supply quality, reduces fault outage number of times and interruption duration, dwindles power failure range.While is corresponding minimizing and shortening overhaul of the equipments interruption duration also.
Fig. 2 is the gridless control chart of utility model.
Intelligent micro-grid distribution system terminals all in the system are all carried out data communication by network and master station.Therefore in the system parameter in the links such as analog quantity numerical value such as voltage, electric current, frequency, power, and the switching value such as switch bit can both reach master station in real time, main station system is by intellectual analysis, thereby and issues accordingly control command and improve the reliability of electric power system and strengthen analysis, supervision and debugging management to power supply parameter.Each electric terminal running status of main website on-line real time monitoring, fault alarm, guarantee instruction and remote control distribution switching, the information of fully data of miniature power distribution network and structure being carried out is integrated, reaches and plans as a whole control, the effect of implementing in full.
Fig. 3 is intelligent micro-grid distribution system terminal schematic diagram.
Its composition comprises testing circuit, and AD conversion and signal are processed actuator, controller CPU and communication interface.Testing circuit detects coefficient correlations such as circuit or electric capacity, and the AD conversion of testing result process and signal processing become digital signal and be input in the controller.Controller is processed or communication instruction output control signal by internal processes according to above-mentioned parameter, drives the actuating mechanism controls switch.The data that detect also can be transmitted by communication interface.
Claims (3)
1. intelligent micro-grid distribution system, it is characterized in that: this system comprises two 10KV power supplys (1), each 10KV power supply (1) is connected with an intelligent box substation (2), the other end of each intelligent box substation (2) is connected with user load (4) by load phase switcher (3), and 10KV power supply (1) is connected with capacitor I (5).
2. intelligent micro-grid distribution system according to claim 1, it is characterized in that: this system also is provided with two 0.4KV power supplys (6) and is connected with intelligent box substation (2) respectively, one of them 0.4KV power supply (6) is connected with capacitor II (7), and another 0.4KV power supply (6) is connected with distributed power source (8).
3. intelligent micro-grid distribution system according to claim 1 is characterized in that: be provided with a plurality of line switchings (9) in this system in the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204344993U CN202817901U (en) | 2012-08-30 | 2012-08-30 | Intelligent micro electrical network distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204344993U CN202817901U (en) | 2012-08-30 | 2012-08-30 | Intelligent micro electrical network distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817901U true CN202817901U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204344993U Expired - Fee Related CN202817901U (en) | 2012-08-30 | 2012-08-30 | Intelligent micro electrical network distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202817901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052084A (en) * | 2014-07-14 | 2014-09-17 | 国网上海市电力公司 | 110 kilovolt substation micro-grid system used for large electricity consumption places |
| CN107591825A (en) * | 2016-07-07 | 2018-01-16 | 无锡美凯能源科技有限公司 | One kind compensation unbalanced micro-capacitance sensor device and method of three phase network |
-
2012
- 2012-08-30 CN CN2012204344993U patent/CN202817901U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052084A (en) * | 2014-07-14 | 2014-09-17 | 国网上海市电力公司 | 110 kilovolt substation micro-grid system used for large electricity consumption places |
| CN107591825A (en) * | 2016-07-07 | 2018-01-16 | 无锡美凯能源科技有限公司 | One kind compensation unbalanced micro-capacitance sensor device and method of three phase network |
| CN107591825B (en) * | 2016-07-07 | 2019-05-17 | 无锡美凯能源科技有限公司 | A kind of unbalanced micro-capacitance sensor device and method of compensation three phase network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20170830 |