CN202395443U - Microgrid system for laboratories - Google Patents
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- CN202395443U CN202395443U CN 201220002686 CN201220002686U CN202395443U CN 202395443 U CN202395443 U CN 202395443U CN 201220002686 CN201220002686 CN 201220002686 CN 201220002686 U CN201220002686 U CN 201220002686U CN 202395443 U CN202395443 U CN 202395443U
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- 238000004146 energy storage Methods 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000005457 optimization Methods 0.000 claims abstract description 8
- 238000010248 power generation Methods 0.000 claims abstract description 6
- 238000004088 simulation Methods 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 17
- 230000001172 regenerating effect Effects 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000002737 fuel gas Substances 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003345 natural gas Substances 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000003326 Quality management system Methods 0.000 abstract 1
- 230000033228 biological regulation Effects 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
- 238000011160 research Methods 0.000 description 6
- 239000002803 fossil fuel Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004140 cleaning Methods 0.000 description 1
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- 238000005094 computer simulation Methods 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model discloses a microgrid system for laboratories, which is capable of providing more theoretical bases and test bases for large-scale high-efficiency utilization of renewable energy sources and the construction of microgrids in China. The microgrid system for the laboratories comprises a dummy bus. Interconnection switches which respectively correspond to the dummy bus are connected with a dummy wind power generation system, a dummy solar power generation system, a dummy generator system, a dummy battery energy storage system, a dummy load system and a dummy power quality management system; the dummy bus is also connected with a power transmission network through the corresponding interconnection switch via a two-way watt-hour meter, therefore, the microgrid system for the laboratories is formed. A microgrid controller is connected with all the interconnection switches; control is performed by the microgrid controller by adopting one or more than one of the grid-connected operation control strategy or the isolated network operation stable control strategy or the active power regulation and reactive power optimization control strategy or the grid-connected/isolated network mode switching strategy or the multi-power supply coordination control strategy and the energy optimization control strategy, and coordination control is performed on a renewable energy source grid-connected device and a power quality management device, therefore, renewable energy source grid-connected harmonic suppression and voltage disturbance resistance can be completed.
Description
Technical field
The utility model relates to a kind of electric power system, specially refers to the micro-grid system that a kind of laboratory is used.
Background technology
The Human's production domestic energy mainly rely on fossil fuel comprise oil, natural gas, coal etc. natural, non-renewable energy resources.Because fossil fuel need pass through thousands of century-old could the formation that, and adds the continuous increase of the size of population, fossil fuel can be consumed to the greatest extent very soon, and the mankind will face the energy starved problem.
Electric energy is the practical secondary energy sources of cleaning, must be through the conversion of primary energy.Solar energy, fire, wind energy, water, morning and evening tides, nuclear energy etc. can obtain electric energy through conversion.Solve energy shortage on the one hand, improve energy resource structure, alleviate environmental pollution; On the other hand, wind energy, solar energy can be gathered materials on the spot, and need not transportation, and is pollution-free, has very big superiority, is the most representative new and renewable sources of energy.Wind power generation and photovoltaic generation become the research emphasis of power industry.Based on this, the notion of the little electrical network that has proposed to form jointly by wind energy, solar energy, storage battery and gas turbine.
The appearance of little electrical network will be the problem that electric power system is difficult to avoid with fast development.They will bring influence to the existing power system; Produce some new problems: like the standard that is incorporated into the power networks, the method for little electrical network and electrical network; Little electrical network inserts behind the electrical network influence to electrical network; The operation control of the supervision of distributed energy, monitoring and adjusting and little electrical network itself; The general connecting system of batch (-type) regenerative resource is different from traditional electrical network to the transient stability and the dynamic stability of partial electric grid, and the coordination of machine net is with scheduling, control model, protective relaying device and cooperate and all need study and discussion etc.China's research and field operation experiences in this respect is less at present; Set up a laboratory and use micro-grid system; And utilize this system to carry out the relevant issues research of regenerative resource, distributed energy and little electrical network, the dynamic simulation test of relevant device, the lonely network operation of being incorporated into the power networks of electrical network and little electrical network, little electrical network, be incorporated into the power networks and the switching of lonely network operation is necessary.
The utility model content
The purpose of the utility model is exactly for addressing the above problem, the micro-grid system that provides a kind of laboratory to use, and it can be China's regenerative resource extensive efficiently utilizes, the construction of little electrical network provides more theoretical foundation and test basis.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
The micro-grid system that a kind of laboratory is used; It comprises analog bus, and respectively corresponding interconnection switch connects simulation wind generator system, analog solar electricity generation system, simulation generator system, imitated storage battery energy-storage system, fictitious load system, simulation power quality controlling system on analog bus; Analog bus also links to each other with power transmission network through two-way kilowatt-hour meter through corresponding interconnection switch, thereby forms the laboratory micro-grid system; Little power system controller is connected with each interconnection switch; Little power system controller adopts the stable control strategy when being incorporated into the power networks control strategy or lonely network operation or meritoriously regulates with the idle work optimization control strategy or be incorporated into the power networks/and in lonely net mode switch strategy or many power supplys coordination control strategy and the energy-optimised management strategy one or more control; And coordinate control regenerative resource grid-connecting apparatus and power quality controlling device, accomplish the regenerative resource harmonic wave that is incorporated into the power networks and suppress and the reactance voltage disturbance.
Said simulation wind generator system is one or a few typhoon power generator group, and the assembly of every typhoon power generator has a grid type current transformer to be connected with interconnection switch.
Said wind turbine generator comprises one or both in double feed wind power generator and the permanent magnet direct-drive generator group.
Said analog solar electricity generation system is one group or several groups of solar cells, and it is connected with corresponding energy storage battery, and every group of solar cell is furnished with a grid type current transformer and is connected with interconnection switch; Energy storage battery also is connected with the grid type current transformer through its corresponding interconnection switch simultaneously; The DC side of solar cell links to each other with energy storage battery through interconnection switch, through the closure of control interconnection switch, and the switching of control DC side energy storage battery, thus control analog solar electricity generation system is exported with the different power pattern.
Said solar cell comprises roof self-contained battery template, glass curtain wall battery template and double-axis tracking one or more in the battery template day by day.
Said simulation generator system comprises diesel generating set or fuel gas generation unit, and it is connected with interconnection switch.
Said fuel gas generation unit comprises one or more in combustion natural gas power unit, combustion hydrogen gas generation unit and the combustion biogas power generation unit.
Said imitated storage battery energy-storage system comprises storage battery, and it is connected with corresponding interconnection switch with the grid type current transformer through charging system respectively; Storage battery comprises that lead-acid battery, lithium are that battery, nickel are battery, flow battery or sodium-sulphur battery.
Said simulation power quality controlling system comprises reactive compensation system and corresponding interconnection switch and harmonic wave control system and corresponding interconnection switch.
Said fictitious load system comprises first load system and second load system; Wherein, first load system is pure resistive loads and interconnection switch; Second load system is perceptual motor load and interconnection switch.
The utility model provides a kind of laboratory to use micro-grid system, comprises first load system and second load system of simulation wind generator system, analog solar electricity generation system, simulation generating set system, imitated storage battery energy-storage system, simulation power quality controlling system, simulation.Micro-grid system links to each other with power transmission network with interconnection switch through two-way kilowatt-hour meter, and little electrical network can have two kinds of running statuses, is incorporated into the power networks and lonely network operation.When being incorporated into the power networks, when the energy output of regenerative resource can not satisfy loading demand, can absorb energy from power transmission network through two-way kilowatt-hour meter; When the energy output of regenerative resource has surpassed loading demand, can be to charge in batteries, can be after storage battery is full of through two-way kilowatt-hour meter to the power transmission network feedback energy.During orphan's network operation, when the energy output of regenerative resource can not satisfy loading demand, need through storage battery through current transformer output energy; When the energy output of regenerative resource surpasses loading demand, can get up unnecessary energy storage to charge in batteries.Be incorporated into the power networks and lonely network operation two states can also carry out undisturbed switching, simultaneously can carry out idle work optimization control harmonic and administer through the power quality controlling system.Above-mentioned functions can realize through different Optimal Control Strategy with little power system controller.
The beneficial effect of the utility model is: utilize the laboratory can carry out basic distributed energy research work with little electrical network platform, comprise operation, the control of distributed energy, the research and the type power electronics interface arrangement newly developed of protection; Utilize this platform can carry out basic little electrical network research work, comprise monitoring, using energy source and optimization, operation characteristic and Study of operation, control strategy, protection and grounding scheme, data communication protocol and the framework of little electrical network; Utilize this platform can carry out the detection and the certification work of distributed energy and little power system controller, protection and automation equipment; Utilize this platform can carry out the work of training, education aspect.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Wherein, 1. analog bus, 2. transmission of electricity electrical network, 3. two-way kilowatt-hour meter; 4. interconnection switch, 5. charging system, 6. storage battery, 7. wind turbine generator; 8. grid type current transformer, 9. solar cell, 10. energy storage battery, 11. reactive compensation systems; 12. the harmonic wave control system, 13. first load systems, 14. second load systems, 15. hydrogen gas generation units.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Among Fig. 1; As shown in the figure; Micro-grid system is used in the laboratory; Comprise simulation wind generator system, analog solar electricity generation system, simulation generator system, imitated storage battery energy-storage system, fictitious load system, simulation power quality controlling system, analog bus 1 also links to each other with power transmission network 2 through two-way kilowatt-hour meter 3 through corresponding interconnection switch 4, thereby forms the laboratory micro-grid system; Little power system controller is connected with each interconnection switch 4; Little power system controller adopts the stable control strategy when being incorporated into the power networks control strategy or lonely network operation or meritoriously regulates with the idle work optimization control strategy or be incorporated into the power networks/and in lonely net mode switch strategy or many power supplys coordination control strategy and the energy-optimised management strategy one or more control; And coordinate control regenerative resource grid-connecting apparatus and power quality controlling device, accomplish the regenerative resource harmonic wave that is incorporated into the power networks and suppress and the reactance voltage disturbance.
The simulation wind generator system is one or a few typhoon power generator group 7, and every typhoon power generator group 7 is furnished with a grid type current transformer 8 and is connected with interconnection switch 4, can drop into the laboratory respectively and use little electrical network.Wind turbine generator 7 comprises one or both in double feed wind power generator and the permanent magnet direct-drive generator group.
The analog solar electricity generation system is one group or several groups of solar cells 9, and it is connected with corresponding energy storage battery 10, and every group of solar cell 9 is furnished with a grid type current transformer 8 and is connected with interconnection switch 4, can drop into the laboratory respectively and use little electrical network; Energy storage battery 10 also is connected with grid type current transformer 8 through its corresponding interconnection switch 4 simultaneously.Wherein, solar cell 9 comprises roof self-contained battery template, glass curtain wall battery template and double-axis tracking one or more in the battery template day by day.The DC side of every kind of solar cell 9 links to each other with energy storage battery 10 through interconnection switch 4; Closure through control interconnection switch 4; Can control the switching of DC side energy storage battery 10, promptly can control the analog solar electricity generation system and export with the different power pattern.
The simulation generator system comprises diesel generating set or fuel gas generation unit, and it is connected with interconnection switch 4.Wherein the fuel gas generation unit comprises one or more in combustion natural gas power unit, hydrogen gas generation unit 15 and the combustion biogas power generation unit.
Hydrogen gas generation unit 15 can drop into the laboratory respectively through interconnection switch 4 and use little electrical network.
The simulation generator system is laboratory when with little electrical network power being provided, and the three-phase voltage support of amplitude and frequency stabilization also is provided with little electrical network for the laboratory.
The imitated storage battery energy-storage system comprises storage battery 6, and it is connected with corresponding interconnection switch 4 with grid type current transformer 8 through charging system 5 respectively, can drop into the laboratory respectively through interconnection switch and use little electrical network; Storage battery 6 comprises that lead-acid battery, lithium are that battery, nickel are battery, flow battery or sodium-sulphur battery.
Said simulation power quality controlling system comprises reactive compensation system 11 and corresponding interconnection switch 4 and harmonic wave control system 12 and corresponding interconnection switch 4, and the interconnection switch 4 through separately drops into the laboratory respectively and uses micro-grid system.
The fictitious load system comprises first load system 13 and second load system 14; Wherein, first load system 13 is pure resistive loads and interconnection switch 4; Second load system 14 is perceptual motor load and interconnection switch 4.
Whole fictitious load system can be divided into many groups, regulates to drop into the load group number and can regulate the total load capacity.
Micro-grid system is used in a kind of laboratory that the utility model provides; Be used for polytype renewable energy system, batteries to store energy system, load system opened the light through power electronic equipment and contact and couple together; Form the laboratory micro-grid system, be used to study the coordinated operation control strategy framework of micro-grid system.Comprise the control strategy that is incorporated into the power networks; Stable control strategy during orphan's network operation, the meritorious adjusting and the idle work optimization control technology; Be incorporated into the power networks/lonely net mode switch strategy; The inhibition of regenerative resource grid-connected system harmonic wave, reactance voltage perturbation technique are studied in many power supplys coordination control strategy and energy-optimised management simultaneously, coordinate control regenerative resource grid-connecting apparatus and power quality controlling device etc.
It is understandable that; Concerning those of ordinary skills; Can be equal to replacement or change according to the technical scheme and the utility model design thereof of the utility model, and all these changes or replacement all should belong to the protection range of the appended claim of the utility model.
Claims (10)
1. micro-grid system that the laboratory is used; It comprises analog bus; It is characterized in that respectively corresponding interconnection switch connects simulation wind generator system, analog solar electricity generation system, simulation generator system, imitated storage battery energy-storage system, fictitious load system, simulation power quality controlling system on analog bus; Analog bus also links to each other with power transmission network through two-way kilowatt-hour meter through corresponding interconnection switch, thereby forms the laboratory micro-grid system; Little power system controller is connected with each interconnection switch; Little power system controller adopts the stable control strategy when being incorporated into the power networks control strategy or lonely network operation or meritoriously regulates with the idle work optimization control strategy or be incorporated into the power networks/and in lonely net mode switch strategy or many power supplys coordination control strategy and the energy-optimised management strategy one or more control; And coordinate control regenerative resource grid-connecting apparatus and power quality controlling device, accomplish the regenerative resource harmonic wave that is incorporated into the power networks and suppress and the reactance voltage disturbance.
2. the micro-grid system that laboratory as claimed in claim 1 is used is characterized in that, said simulation wind generator system is one or a few typhoon power generator group, and the assembly of every typhoon power generator has a grid type current transformer to be connected with interconnection switch.
3. the micro-grid system that laboratory as claimed in claim 2 is used is characterized in that, said wind turbine generator comprises one or both in double feed wind power generator and the permanent magnet direct-drive generator group.
4. the micro-grid system that laboratory as claimed in claim 1 is used; It is characterized in that; Said analog solar electricity generation system is one group or several groups of solar cells, and it is connected with corresponding energy storage battery, and every group of solar cell is furnished with a grid type current transformer and is connected with interconnection switch; Energy storage battery also is connected with the grid type current transformer through its corresponding interconnection switch simultaneously; The DC side of solar cell links to each other with energy storage battery through interconnection switch, through the closure of control interconnection switch, and the switching of control DC side energy storage battery, thus control analog solar electricity generation system is exported with the different power pattern.
5. the micro-grid system that laboratory as claimed in claim 4 is used is characterized in that, said solar cell comprises roof self-contained battery template, glass curtain wall battery template and double-axis tracking one or more in the battery template day by day.
6. the micro-grid system that laboratory as claimed in claim 1 is used is characterized in that, said simulation generator system comprises diesel generating set or fuel gas generation unit, and it is connected with interconnection switch.
7. the micro-grid system that laboratory as claimed in claim 6 is used is characterized in that, said fuel gas generation unit comprises one or more in combustion natural gas power unit, combustion hydrogen gas generation unit and the combustion biogas power generation unit.
8. the micro-grid system that laboratory as claimed in claim 1 is used is characterized in that, said imitated storage battery energy-storage system comprises storage battery, and it is connected with corresponding interconnection switch with the grid type current transformer through charging system respectively; Storage battery comprises that lead-acid battery, lithium are that battery, nickel are battery, flow battery or sodium-sulphur battery.
9. the micro-grid system that laboratory as claimed in claim 1 is used is characterized in that, said simulation power quality controlling system comprises reactive compensation system and corresponding interconnection switch and harmonic wave control system and corresponding interconnection switch.
10. the micro-grid system that laboratory as claimed in claim 1 is used is characterized in that, said fictitious load system comprises first load system and second load system; Wherein, first load system is pure resistive loads and interconnection switch; Second load system is perceptual motor load and interconnection switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220002686 CN202395443U (en) | 2012-01-05 | 2012-01-05 | Microgrid system for laboratories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220002686 CN202395443U (en) | 2012-01-05 | 2012-01-05 | Microgrid system for laboratories |
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| CN202395443U true CN202395443U (en) | 2012-08-22 |
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| CN 201220002686 Expired - Lifetime CN202395443U (en) | 2012-01-05 | 2012-01-05 | Microgrid system for laboratories |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412578A (en) * | 2012-01-05 | 2012-04-11 | 山东电力研究院 | Laboratory microgrid system |
| CN103414181A (en) * | 2013-05-16 | 2013-11-27 | 中国能源建设集团广东省电力设计研究院 | Method for designing micro-grid system |
| CN103701118A (en) * | 2013-12-19 | 2014-04-02 | 国电南京自动化股份有限公司 | Micro-grid on-site operation control strategy on basis of embedded controller |
| CN105321020A (en) * | 2014-07-21 | 2016-02-10 | 张健平 | Mini simulation power system |
-
2012
- 2012-01-05 CN CN 201220002686 patent/CN202395443U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412578A (en) * | 2012-01-05 | 2012-04-11 | 山东电力研究院 | Laboratory microgrid system |
| CN102412578B (en) * | 2012-01-05 | 2013-09-04 | 山东电力研究院 | Laboratory microgrid system |
| CN103414181A (en) * | 2013-05-16 | 2013-11-27 | 中国能源建设集团广东省电力设计研究院 | Method for designing micro-grid system |
| CN103414181B (en) * | 2013-05-16 | 2015-09-16 | 中国能源建设集团广东省电力设计研究院有限公司 | A kind of micro-grid system method for designing |
| CN103701118A (en) * | 2013-12-19 | 2014-04-02 | 国电南京自动化股份有限公司 | Micro-grid on-site operation control strategy on basis of embedded controller |
| CN103701118B (en) * | 2013-12-19 | 2015-11-18 | 国电南京自动化股份有限公司 | A kind of micro-capacitance sensor based on embedded controller runs control strategy on the spot |
| CN105321020A (en) * | 2014-07-21 | 2016-02-10 | 张健平 | Mini simulation power system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121031 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121031 Address after: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee after: Shandong Research Inst. of Electric Power Patentee after: State Grid Corporation of China Address before: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Patentee before: Shandong Research Inst. of Electric Power |
|
| CP02 | Change in the address of a patent holder |
Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: Shandong Electric Power Research Institute Patentee after: State Grid Corporation of China Address before: 250002, No. 500, South Second Ring Road, Shizhong District, Shandong, Ji'nan Patentee before: Shandong Electric Power Research Institute Patentee before: State Grid Corporation of China |
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| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
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| CX01 | Expiry of patent term |