CN202679070U - Intelligent micro-grid - Google Patents
Intelligent micro-grid Download PDFInfo
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- CN202679070U CN202679070U CN 201220181019 CN201220181019U CN202679070U CN 202679070 U CN202679070 U CN 202679070U CN 201220181019 CN201220181019 CN 201220181019 CN 201220181019 U CN201220181019 U CN 201220181019U CN 202679070 U CN202679070 U CN 202679070U
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Abstract
An intelligent micro-grid relates to a micro-grid technology using renewable energy. At present, the large power grid has some obvious disadvantages, for example, the change of the load can not be flexibly tracked, the power supply for remote regions is not ideal, and local accidents are prone to spread in the large power grid causing large-area power failure. The intelligent micro-grid is an independent controllable system, and comprises a power generation unit, a power generation management system, an energy storage unit, an energy storage management system, a user terminal distribution line, a user terminal monitoring system, a central control unit, a remote monitoring system and an external access controller. For a power generation terminal, the intelligent micro-grid can access multiple forms of renewable power generation units, and user terminals are greatly used for power generation, so that the loss during the transmission process is small; and for a user terminal, a response can be given in a short time so as to meet the requirements of internal loads of the intelligent micro-grid and the requirements of electricity quality of the user.
Description
Technical field
The invention belongs to new energy field, particularly a kind of little electric power network technique of utilizing regenerative resource.
Background technology
Along with energy supply constant tension in the world wide with to the pay attention to day by day of environmental problem, the rational exploitation and utilization green energy resource has become an important topic, and regenerative resource is the main outlet that solves the future source of energy problem.Now generally adopt the mode of centralized transmission of electricity, be exactly by large-scale thermal power or water generating, then by ultra high voltage, high voltage power transmission, there are some obvious drawbacks, the for example flexibly variation of follow load, can not carry out desirable power supply to remote districts, Local Accidents very easily spreads in the large-scale power grid, causes large-area power-cuts.And generation of electricity by new energy generally is the distributed power generation form, very near the terminal use, usually capacity is very little, can isolate power supply also can be incorporated into the power networks, the simultaneously combination in distributed power generation generator unit and energy storage source, have significant differently with traditional electrical network, under the main framework of present large electrical network, be necessary to develop a kind of intelligent micro-grid of suitable generation of electricity by new energy.
Summary of the invention
For above problem, the invention provides a kind of intelligent micro-grid, this intelligent micro-grid is a system that independence is controlled, bring in generating, intelligent micro-grid can access various ways can be again can energy generator unit, more be to adopt the user side generating, loss is less in the course of conveying, at user side, can react at short notice to satisfy the demand of intelligent micro-grid internal load, satisfy simultaneously the user to the requirement of the quality of power supply.Although intelligent micro-grid also is the decentralized power supply form, but it is not the simple regression to the isolated mini system at power system development initial stage, but adopt a large amount of advanced modern electric technology, such as electronic power switch fast and advanced inversion transformation technique, efficient energy storage device etc., so the technical solution adopted for the present invention to solve the technical problems is:
Intelligent micro-grid is comprised of generator unit, electric generation management system, energy-storage units, energy storage management system, user side distribution line, user side supervisory control system, central control unit, long distance control system and outside access controller.
1, described generator unit is comprised of solar energy power generating, small-sized fan generating, miniature gas turbine generating and inverter.Generator unit access user end distribution line, system links to each other with electric generation management, and each generating equipment of generator unit is subjected to electric generation management system monitoring and control.
2, described electric generation management system generating watch-dog, the automatic conditioning equipment of power supply form.The electric generation management system connects generator unit, link to each other with central control unit, accept the central control unit instruction control generator unit is in operation or unloaded state, and the generating equipment running state information sent it back central control unit, the auto-adjustment control generating equipment is in optimal operational condition simultaneously.
3, described energy-storage units is comprised of high-performance batteries and two-way inverter.Energy-storage units access user end distribution line connects the electric generation management system by the energy storage management system and links to each other with central controller, and energy-storage units utilizes two-way inverter can store the energy of generating equipment, can provide energy to the user side load.
4, described energy storage management system is comprised of energy storage watch-dog, energy storage information evaluation and the safe xegregating unit of energy storage.The energy storage management system connects electric generation management system and central control unit, the energy storage watch-dog shows the state of energy-storage units, the running status of energy storage information evaluation system real-time assessment energy-storage units, in-problem high-performance batteries is warned, and enable the safe xegregating unit of energy storage in-problem high-performance batteries is isolated, prevent the energy-storage units overall losses.The energy storage management system is sent the energy-storage units running status back to central control unit, accepts central control unit instruction control energy and flows between energy-storage units and user side load.
5, described user side distribution line connects the various power consumption equipments of user side.
6, described user side supervisory control system Real Time Monitoring user side distribution line power change sends relevant information to central control unit, and provides the emergency safety defencive function to ustomer premises access equipment.
7, described central control unit is comprised of electric generation management system port, energy storage management system port, outside access controller port, long distance control system port, analysis of information collection device, central processing unit, Simulation Control unit.The corresponding connected system of each port of central control unit, the analysis of information collection device obtains each system's operation running state information from each port, after central processing unit is processed, analysis result is sent to the Simulation Control unit, the Simulation Control unit mainly carries out intelligent micro-grid energy output variation tendency and the prediction of user side energy consumption, make intelligent decision-making according to the information that central processing unit sends, the stable effectively operation of control intelligent micro-grid.Center-control will be delivered to long distance control system with the intelligent micro-grid running status by the analysis of information collection device, and accept the long distance control system operational order.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing:
Be the intelligent micro-grid structure chart such as figure:
(1) be generator unit, (2) are the electric generation management system, and (3) are energy-storage units, (4) energy storage management system, and (5) user side distribution line, (6) user side supervisory control system, (7) central control unit,
(8) long distance control system, (9) outside access controller.
Specific embodiments
With reference to the accompanying drawings, intelligent micro-grid comprises generator unit, electric generation management system, energy-storage units, energy storage management system, user side supervisory control system, central control unit, long distance control system, the several parts of outside access controller.Now take certain residential quarter as example, make up the little electrical network of terminal intelligent under the large electrical network.
Generating equipment is that power station, solar energy power generating roof, small-sized fan and combustion gas wheel form, and links to each other with the user side distribution line through inverter.
Energy-storage units is LiFePO4 high-performance batteries, also links to each other with the user side distribution line by two-way inverter.
User side supervisory control system supervisory control system is connected on the user side distribution line.
Electric generation management system, energy storage management system, user side supervisory control system, long distance control system access respectively the central control unit corresponding ports.
Outside access controller connects user's distribution line and outside public electric wire net or the little electrical network of external smart, accesses simultaneously the central control unit corresponding ports, carries out information and instruction intercommunication with central control unit.
Long distance control system by the modern network communication technology can the remote real-time monitoring intelligent micro-grid running status, manual operation is carried out in emergency.
Intelligent micro-grid is under running status, when the electric energy that provides when generating equipment is higher than the user side loading demand, the outside access controller of central controller controls is in off-state, generating equipment is transmitted electricity to user's distribution line, and to LiFePO4 high-performance battery charging, according to circumstances can unload the part generating equipment simultaneously.
When the electric energy that provides when generating equipment is lower than the user side loading demand, the outside access controller of central controller controls is in off-state, controlling simultaneously LiFePO4 high-performance batteries transmits electricity to user's distribution line, guarantee that the user side load normally moves, also can control outside access controller to the transmission of electricity of user's distribution line, simultaneously LiFePO4 high-performance batteries be charged.
The charging of the LiFePO4 high-performance batteries of energy-storage units and generating state are by the Simulation Control unit of central controller Based Intelligent Control as the case may be.
Claims (6)
1. intelligent micro-grid system, it is characterized in that: by generator unit, the electric generation management system, energy-storage units, the energy storage management system, the user side distribution line, the user side supervisory control system, central control unit, long distance control system and outside access controller form, outside access controller and user side supervisory control system connect respectively user side distribution line and central control unit, generator unit connects the user side distribution line, connect central control unit by the electric generation management system simultaneously, energy-storage units connects the user side distribution line, connect central control unit, the external long distance control system of central control unit by the energy storage management system simultaneously.
2. according to the described intelligent micro-grid of right 1 system, it is characterized in that: generator unit is comprised of solar energy power generating, small-sized fan generating, miniature gas turbine generating and inverter, generator unit access user end distribution line, system links to each other with electric generation management, and each generating equipment of generator unit is subjected to electric generation management system monitoring and control.
3. according to the described intelligent micro-grid of right 1 system, it is characterized in that: electric generation management system generating watch-dog, the automatic conditioning equipment of power supply form, the electric generation management system connects generator unit, link to each other with central control unit, accept the central control unit instruction control generator unit is in operation or unloaded state, and the generating equipment running state information is sent it back central control unit.
4. according to the described intelligent micro-grid of right 1 system, it is characterized in that: energy-storage units is comprised of high-performance batteries and two-way inverter, energy-storage units access user end distribution line connects the electric generation management system by the energy storage management system and links to each other with central controller.
5. according to the described intelligent micro-grid of right 1 system, it is characterized in that: the energy storage management system is comprised of energy storage watch-dog, energy storage information evaluation and the safe xegregating unit of energy storage.
6. according to the described intelligent micro-grid of right 1 system, it is characterized in that: central control unit is comprised of electric generation management system port, energy storage management system port, outside access controller port, long distance control system port, analysis of information collection device, central processing unit, Simulation Control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181019 CN202679070U (en) | 2012-04-26 | 2012-04-26 | Intelligent micro-grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220181019 CN202679070U (en) | 2012-04-26 | 2012-04-26 | Intelligent micro-grid |
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| Publication Number | Publication Date |
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| CN202679070U true CN202679070U (en) | 2013-01-16 |
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| CN 201220181019 Expired - Fee Related CN202679070U (en) | 2012-04-26 | 2012-04-26 | Intelligent micro-grid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613893A (en) * | 2023-07-20 | 2023-08-18 | 南方电网调峰调频发电有限公司信息通信分公司 | Regional electric energy intelligent management method and device for power generation enterprises |
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2012
- 2012-04-26 CN CN 201220181019 patent/CN202679070U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613893A (en) * | 2023-07-20 | 2023-08-18 | 南方电网调峰调频发电有限公司信息通信分公司 | Regional electric energy intelligent management method and device for power generation enterprises |
| CN116613893B (en) * | 2023-07-20 | 2024-01-16 | 南方电网调峰调频发电有限公司信息通信分公司 | Regional electric energy intelligent management method and device for power generation enterprises |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20180426 |