CN204633347U - A kind of intelligent micro-grid control system - Google Patents
A kind of intelligent micro-grid control system Download PDFInfo
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- CN204633347U CN204633347U CN201520186669.4U CN201520186669U CN204633347U CN 204633347 U CN204633347 U CN 204633347U CN 201520186669 U CN201520186669 U CN 201520186669U CN 204633347 U CN204633347 U CN 204633347U
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
A kind of intelligent micro-grid control system disclosed in the utility model, comprise micro battery device, static switch and electric energy detection module, described micro battery device is connected by inverter and becomes owner of in the supply line of electrical network, described electric energy detection module is connected with main electrical network and is controlled main electrical network by static switch and inputs the power supply of load, described micro battery device connects and is controlled by electric energy detection module, this micro grid control system both can control micro battery device and main grid network runs, again can isolated operation, when main grid collapses, the power supply of main electrical network can be disconnected rapidly and provide continual electric energy to load, require and improve in power supply reliability etc. have plurality of advantages meeting the multiple quality of power supply, make it completely can as a kind of beneficial complement form of bulk power grid, can be efficient, realize the variation to user economically, the power reguirements of high reliability.
Description
Technical field
The utility model relates to power grid control technical field, especially a kind of intelligent micro-grid control system.
Background technology
along with the development of national economy, electricity needs increases rapidly, and power department concentrates on investment in the construction of the large-scale centralized power supplys such as thermoelectricity, water power and nuclear power and superhigh pressure remote conveying electrical network mostly.In the past in decades, electric power system has developed into the Large-Scale Interconnected network system of centralized power generation, long distance power transmission, but use the continuous increase of electric loading in recent years, and power grid construction does not have synchronized development, the transmission capacity of long-distance transmission line is constantly increased, the degree of dependence that receiving end electrical network externally carrys out electric power also improves constantly, and the stability of operation of power networks and fail safe are declined.So along with the continuous expansion of electrical network scale, the drawback of ultra-large electric power system also shows especially day by day, and cost is high, run difficulty large, be difficult to adapt to the more and more higher safety of user and reliability requirement and diversified power demands.Especially occur in succession in world wide in recent years several times after large area blackout, the fragility of electrical network fully exposes out.
In view of the above problems, people begin one's study distributed generation technology.Distributed power generation refers to the power generating equipment being directly arranged in power distribution network or being distributed near load, can economical, efficiently, reliably generate electricity.Distributed electrical source position flexibly, dispersion, can be for subsequent use each other with bulk power grid, shared the function of power transmission network and bulk power transmission remote from power plant to user to a certain extent.But distributed power source is a uncontrollable power supply relative to bulk power grid, bulk power grid also often limits or isolation distributed power source, cannot solve the contradiction between bulk power grid and distributed power source.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of intelligent micro-grid control system, shows as single controlled unit relative to bulk power grid, can realize the highly reliable supply to load various energy resources form.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of intelligent micro-grid control system, comprise micro battery device, static switch and electric energy detection module, described micro battery device is connected by inverter and becomes owner of in the supply line of electrical network, described electric energy detection module is connected with main electrical network and is controlled main electrical network by static switch and inputs the power supply of load, and described micro battery device connects and is controlled by electric energy detection module.
This micro battery device with main grid network and use, or can disconnect isolated operation with main electrical network, when main grid collapses, static switch disconnects, and micro battery device proceeds to islet operation, to ensure the uninterrupted power supply of sensitiveness load, after Failure elimination, micro battery device can be incorporated into the power networks again.
Preferably, above-mentioned micro battery device comprises wind power generation module, photovoltaic generating module and batteries to store energy module, described wind power generation module and photovoltaic generating module respectively with batteries to store energy model calling, namely this micro battery device comprises solar powered and powered by wind energy two parts, wind power generation module and photovoltaic generating module preferentially charge a battery, after storage battery is full of, disconnect the connection of two electricity generation modules and storage battery, carry out inversion grid connection, significant for raising efficiency of energy utilization, Optimization of Energy Structure, minimizing environmental pollution etc.
Preferably, described wind power generation module, photovoltaic generating module and batteries to store energy module are respectively equipped with circuit breaker, can the operation of each module of available protecting.
Preferably, described micro battery device is connected with DC load, and described DC load is provided with circuit breaker, utilizes this micro battery device directly to power to DC load, uses convenient.
Preferably, described electric energy detection module comprises current transformer, voltage transformer, electric energy metering machine and master controller, described electric energy metering machine is connected by current transformer and voltage transformer the detection that main electrical network carries out electric current and voltage respectively, the output of described electric energy metering machine connects master controller, and described master controller exports and connects static switch and micro battery device respectively.This electric energy detection module, mainly for detection of the voltage and current quality of main electrical network incoming line, when voltage generation relatively large deviation, exports the connection controlling static switch disconnection and main electrical network.
Preferably, also include control display module and be connected with master controller, described control display module is provided with the LED light for pointing out operation.
Preferably, described master controller is provided with the communication interface for Long-distance Control.
The beneficial effects of the utility model: this micro grid control system both can control micro battery device and main grid network runs, again can isolated operation, micro grid control system can and become owner of the electric energy that electrical network provides good quality, and when main grid collapses, the power supply of main electrical network can be disconnected rapidly and provide continual electric energy to load, can ensure under the environment such as bad weather customer power supply, require and improve in power supply reliability etc. have plurality of advantages meeting the multiple quality of power supply, make it completely can as a kind of beneficial complement form of bulk power grid, can be efficient, realize the variation to user economically, the power reguirements of high reliability.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Fig. 1 is the schematic layout pattern of micro battery device in the utility model;
Fig. 2 is the structured flowchart of electric energy detection module in the utility model;
Fig. 3 is operation logic block diagram of the present utility model.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model provides a kind of intelligent micro-grid control system, comprise micro battery device 1, static switch and electric energy detection module 2, described micro battery device 1 is connected by inverter 14 and becomes owner of in the supply line of electrical network 3, described electric energy detection module 2 is connected with main electrical network 3 and the power supply being controlled the 3 pairs of loads of main electrical network by static switch is inputted, and described micro battery device 1 connects and is controlled by electric energy detection module 2.
The micro battery device 1 adopted in this micro grid control system comprises wind power generation module 12, photovoltaic generating module 11 and storage battery 13 energy-storage module, described wind power generation module 12 and photovoltaic generating module 11 are connected with storage battery 13 energy-storage module respectively, namely this micro battery device 1 comprises solar powered and powered by wind energy two parts, wherein wind power generation module 12 is realized by wind-driven generator, generator terminal voltage is maintained by excitation regulation, current transformer front end adopts uncontrollable diode rectifier, then connect and rise by 6 insulated gate bipolar power the voltage source inverter 14 that husband (IGBT) forms, rear end is LC filter, for filtering harmonic wave, photovoltaic generating module 11 adopts solar panel to generate electricity, and storage battery 13 adopts 12V storage battery 13.
Wind power generation module 12 and the preferential accumulators 13 of photovoltaic generating module 11 charge, and after storage battery 13 is full of, disconnect the connection of two electricity generation modules and storage battery 13, carry out inversion grid connection, in heavy load situations, storage battery 13 also can be powered in inversion.Significant for raising efficiency of energy utilization, Optimization of Energy Structure, minimizing environmental pollution etc.Preferably, described wind power generation module 12, photovoltaic generating module 11 and storage battery 13 energy-storage module are respectively equipped with circuit breaker 15, can the operation of each module of available protecting.
This micro battery device 1 can be networked with main electrical network 3 and use, or disconnect isolated operation with main electrical network 3 and claim isolated power grid state, when main electrical network 3 breaks down, static switch disconnects, micro battery device 1 proceeds to islet operation, to ensure the uninterrupted power supply of sensitiveness load, after Failure elimination, micro battery device 1 can be incorporated into the power networks again.Load is divided into one-level load 4(important load in this micro grid control system), the adjustable load of secondary loads 5() and three grades of load 6(can excise load) three classes, independent loop is had to control respectively, and load at different levels is provided with circuit breaker 15, break down at main electrical network 3, when there is no wind energy and luminous energy simultaneously, storage battery 13 is preferentially powered to one-level load 4, ensures the uninterrupted operation of important load.
Preferably, described micro battery device 1 is connected with DC load 16, described DC load 16 is provided with circuit breaker 15, utilizes this micro battery device 1 directly to power to DC load 16, uses convenient.
For the control of power circuit, be generally and ensure that its reliability then needs to adopt PLC or industrial computer, if but directly adopt PLC to carry out measurement mode analog quantity, the structure of circuit then can be made complicated greatly, easily cause the confusion of circuit, cost also increases greatly, and the AD sampling rate of PLC also fails to reach the sample rate of alternating current, this micro grid control system adopts electric energy detection module 2 to control, comprise current transformer 23, voltage transformer 24, electric energy metering machine 22 and master controller 21, described master controller 21 is single-chip microcomputer, described electric energy metering machine 22 is connected by current transformer 23 and voltage transformer 24 detection that main electrical network 3 carries out electric current and voltage respectively, the output of described electric energy metering machine 22 connects master controller 21, described master controller 21 exports and connects static switch and micro battery device 1 respectively, this electric energy detection module 2 is mainly for detection of the voltage and current quality of main electrical network 3 incoming line, namely utilize instrument transformer and single-chip microcomputer to realize the collection of data and to control the break-make of circuit breaker 15, when voltage generation relatively large deviation, export the connection controlling static switch disconnection and main electrical network 3.
Micro grid control system also includes control display module and is connected with master controller 21, and described control display module is provided with the LED light for pointing out operation.
During operation, master controller 21 adopts 485 communications by the communication between communication interface and host computer, single-chip microcomputer processes gathering the data of returning, and is transferred on host computer by 485 buses by energy data, performs corresponding folding in the distance control line-breaker 15.This micro grid control system both can control micro battery device 1 and the networking operation of main electrical network 3, again can isolated operation, micro grid control system can and become owner of the electric energy that electrical network 3 provides good quality, and when main electrical network 3 breaks down, the power supply of main electrical network 3 can be disconnected rapidly and provide continual electric energy to load.The design is when running into bulk power grid and disconnecting suddenly, and run while wind-force and solar energy and storage battery 13 and can drive certain load, and give a warning, reminding user, avoids and reduce the loss of user to a certain extent.
The above, just preferred embodiment of the present utility model, the utility model is not limited to above-mentioned execution mode, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection range of the present utility model.
Claims (7)
1. an intelligent micro-grid control system, it is characterized in that: comprise micro battery device (1), static switch and electric energy detection module (2), described micro battery device (1) is connected by inverter (14) and becomes owner of in the supply line of electrical network (3), described electric energy detection module (2) is connected with main electrical network (3) and is controlled main electrical network (3) by static switch and inputs the power supply of load, and the connection of described micro battery device (1) is controlled by electric energy detection module (2).
2. a kind of intelligent micro-grid control system according to claim 1, it is characterized in that: described micro battery device (1) comprises wind power generation module (12), photovoltaic generating module (11) and storage battery (13) energy-storage module, and described wind power generation module (12) is connected with storage battery (13) energy-storage module respectively with photovoltaic generating module (11).
3. a kind of intelligent micro-grid control system according to claim 2, is characterized in that: described wind power generation module (12), photovoltaic generating module (11) and storage battery (13) energy-storage module are respectively equipped with circuit breaker (15).
4. a kind of intelligent micro-grid control system according to Claims 2 or 3, is characterized in that: described micro battery device (1) is connected with DC load (16), and described DC load (16) is provided with circuit breaker (15).
5. a kind of intelligent micro-grid control system according to claim 1, it is characterized in that: described electric energy detection module (2) comprises current transformer (23), voltage transformer (24), electric energy metering machine (22) and master controller (21), described electric energy metering machine (22) is connected by current transformer (23) and voltage transformer (24) detection that main electrical network (3) carries out electric current and voltage respectively, the output of described electric energy metering machine (22) connects master controller (21), described master controller (21) exports and connects static switch and micro battery device (1) respectively.
6. a kind of intelligent micro-grid control system according to claim 5, is characterized in that: also include control display module and be connected with master controller (21), described control display module is provided with the LED light for pointing out operation.
7. a kind of intelligent micro-grid control system according to claim 5 or 6, is characterized in that: described master controller (21) is provided with the communication interface for Long-distance Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520186669.4U CN204633347U (en) | 2015-03-30 | 2015-03-30 | A kind of intelligent micro-grid control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520186669.4U CN204633347U (en) | 2015-03-30 | 2015-03-30 | A kind of intelligent micro-grid control system |
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| CN204633347U true CN204633347U (en) | 2015-09-09 |
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| CN201520186669.4U Expired - Fee Related CN204633347U (en) | 2015-03-30 | 2015-03-30 | A kind of intelligent micro-grid control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069813A (en) * | 2017-04-14 | 2017-08-18 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of new energy intelligent grid control system |
| CN109001605A (en) * | 2018-09-25 | 2018-12-14 | 五邑大学 | A kind of discharge testing chest in soft straight power station |
-
2015
- 2015-03-30 CN CN201520186669.4U patent/CN204633347U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069813A (en) * | 2017-04-14 | 2017-08-18 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of new energy intelligent grid control system |
| CN109001605A (en) * | 2018-09-25 | 2018-12-14 | 五邑大学 | A kind of discharge testing chest in soft straight power station |
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| 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: 20150909 Termination date: 20180330 |