CN102074952A - Independent micro-grid system - Google Patents
Independent micro-grid system Download PDFInfo
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- 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
- Y02E40/30—Reactive power compensation
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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
- Y02E40/40—Arrangements for reducing harmonics
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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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/14—District level solutions, i.e. local energy 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
- 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
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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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
- Y04S10/14—Energy storage units
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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
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
Abstract
The invention discloses an independent micro-grid system which is used for connecting different types of regenerative-energy power supplies, loads, energy storage devices and the like together through electric and electronic devices and through a power transmission network to form an independent running micro-grid system, so that a stable and reliable power supply is provided for the loads by mainly using large-scale power generation from regenerative energy sources and secondly using power generation from traditional energy sources. The system provided by the invention is beneficial to design, control, maintain and expansion of the micro grid, and thus the power-supply stability and economical efficiency of the micro grid can be improved.
Description
Technical field
The present invention relates to micro-grid system, particularly a kind of independent micro-grid system based on renewable energy power generation.
Background technology
Tapping a new source of energy and regenerative resource, is the inevitable choice that solves contradiction between China's energy scarcity, using energy source and the environmental protection.Renewable energy power generation has characteristics such as randomness, discontinuity, energy-flux density is low, and the electric power that only relies on regenerative resource to send often can not guarantee the continuous energy supply of loading.Such as, wind energy, solar energy, oceanic energy etc.
Because the characteristics of the output energy change at random that regenerative resource has, therefore, extensive directly being incorporated into the power networks of regenerative resource brings very big impact can for little electrical network, influence the stability and the electric energy quality of little electrical network, when little electrical network is not connected with big electrical network, influence particularly evident when being in independent operation mode.
Therefore, how to utilize the reliable and stable little electrical network of renewable energy source current formation of multiple output electric energy change at random just to become the core key technology problem that will solve based on the little electrical network of the independence of multiple renewable energy power generation.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of independent micro-grid system, make full use of the space-time complementarity of regenerative resource, improve the economy of energy supplying system, for the user provides reliability height, good stability, the excellent green electric power supply of cost performance, realize extensive efficient utilization of regenerative resource.
In order to achieve the above object, the present invention has taked following technical scheme:
A kind of independent micro-grid system wherein, comprises voltage node, generating set, first load, electric power transmission network and a plurality of zone and a plurality of interconnection switch; Each zone comprises a power node; Each power node further comprises renewable energy power generation power supply, second energy storage device, three port current transformers and second load; Described voltage node further comprises first energy storage device and two way convertor; Described first energy storage device is connected to electric power transmission network by two way convertor, the described generating set and first load are directly connected to electric power transmission network respectively, the described renewable energy power generation power supply and second energy storage device are connected on the interconnection switch by three port current transformers respectively, and described second load is connected to electric power transmission network by interconnection switch.
Described independent micro-grid system wherein, also comprises the second renewable energy power generation power supply and second combining inverter; The described second renewable energy power generation power supply is connected to electric power transmission network by second combining inverter.
Described independent micro-grid system, wherein, each zone also comprises power quality controlling unit, the 3rd renewable energy power generation power supply and the 3rd combining inverter; Described power quality controlling unit is connected to electric power transmission network by corresponding interconnection switch; Described the 3rd renewable energy power generation power supply is connected to electric power transmission network by the 3rd combining inverter and corresponding interconnection switch.
Described independent micro-grid system, wherein, described generating set is diesel generating set or fuel gas generation unit.
Described independent micro-grid system, wherein, described renewable energy power generation power supply comprises wind power generation, solar power generation, power generation with marine energy, biomass power generation.
Described independent micro-grid system, wherein, described first energy storage device and second energy storage device all are electrochemical energy storage devices.
Described independent micro-grid system, wherein, described electrochemical energy storage device is that lead-acid battery, nickel are that battery, lithium are battery, flow battery or sodium-sulphur battery.
Described independent micro-grid system, wherein, described electric power transmission network is a topological structure.
Described independent micro-grid system, wherein, described topological structure is star, annular or tree-like.
Described independent micro-grid system, wherein, described independent micro-grid system also comprises step-up transformer and step-down transformer, described step-up transformer and step-down transformer are connected on the electric power transmission network.
A kind of independent micro-grid system provided by the invention, be used for polytype renewable energy power generation power supply, load, energy storage device etc. are coupled together the micro-grid system that constitutes independent operating by power electronic equipment and electric power transmission network, extensive generating with regenerative resource is utilized as the master, the conventional energy resource generating is auxilliary, for load provides reliable and stable supply of electric power.This system helps design, control, maintenance and the dilatation of little electrical network, can improve the power supply reliability of little electrical network, economy.
Description of drawings
Fig. 1 is the schematic configuration schematic diagram of the independent micro-grid system of the embodiment of the invention;
Fig. 2 is the composition structural representation of the independent micro-grid system of first embodiment of the invention;
Fig. 3 is the composition structural representation of the independent micro-grid system of second embodiment of the invention.
Embodiment
The invention provides a kind of independent micro-grid system, make full use of the space-time complementarity of regenerative resource, improve the economy of energy supplying system,, realize extensive efficient utilization of regenerative resource for the user provides reliability height, good stability, the excellent green electric power supply of cost performance.
For making purpose of the present invention, technical scheme and effect clearer, clear and definite, below with reference to accompanying drawing and give an actual example that the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
See also Fig. 1, Fig. 1 is the schematic configuration schematic diagram of the independent micro-grid system of the embodiment of the invention.As shown in the figure, independent micro-grid system comprises voltage node, generating set, first load, electric power transmission network and a plurality of zone (comprising zone 1, regional 2...... zone N) and a plurality of interconnection switch (comprising interconnection switch 1, interconnection switch 2...... interconnection switch N); Described voltage node, generating set, first load are connected respectively on the electric power transmission network, and each zone is connected to electric power transmission network by an interconnection switch.
The dilatation of described micro-grid system is that the unit carries out with the zone, the modular construction that the zone has identical (or similar), and each zone includes power node, realizes the generation on the spot of energy and consumption on the spot.
Each zone is connected with electric power transmission network by corresponding interconnection switch, when both are communicated with, show as a controlled node on the micro-grid system on the regional integration, just the characteristic of this controlled node, make the stable control of micro-grid system, optimize regulate implement easier.The trend at interconnection switch place can be controlled according to different targets, and the electric energy on electric power transmission network is abundant, and when satisfying the need for electricity of first load fully, the trend that can control the interconnection switch place is zero, realizes the self-sufficient of power supplied locally; When having more energy storage in the zone, the trend that can control corresponding interconnection switch place is that set point is exported energy to little electrical network, and this time domain is a power output source with respect to the external world; When outside energy is more than needed and when also not being in full state in the zone, also extraneous excess energy can be stored in the zone, this time domain is a load for extraneous.When because micro-grid system breaks down, and the zone can also provide independently voltage support for first load, realize local independently-powered.
Described first load comprises conventional commercial power load, also can comprise the peak regulation load, central heating device for example, the central cooling device, ice storage unit etc., at a low ebb when the first load electricity consumption, unlatching peak regulation load effectively utilizes renewable energy power generation when having more than needed and the renewable energy power generation power supply generates electricity.
Please further consult Fig. 2, Fig. 2 is the composition structural representation of the independent micro-grid system of first embodiment of the invention.As shown in the figure, described voltage node comprises first energy storage device, two way convertor; Described power node comprises renewable energy power generation power supply, second energy storage device, three port current transformers and second load; Described first energy storage device is connected on the electric power transmission network by two way convertor, the described generating set and first load are directly connected to electric power transmission network, the described renewable energy power generation power supply and second energy storage device are connected on the interconnection switch by three port current transformers respectively, and second load is connected on the electric power transmission network by interconnection switch.
The composition structure of described independent micro-grid system, be used for polytype renewable energy power generation power supply, load, energy storage device etc. and electric power transmission network are coupled together the micro-grid system that constitutes independent operating, extensive generating with regenerative resource is utilized as the master, the conventional energy resource generating is auxilliary, for load provides reliable and stable supply of electric power.This method comprises: energy storage device and two way convertor constitute the voltage node of little electrical network, support for micro-grid system provides the three-phase voltage of amplitude and frequency stabilization; Renewable energy power generation power supply, energy storage device and three port current transformers constitute the power node of little electrical network, the power circuit that can be stable and controllable with the renewable energy conversion of input fluctuation outputs to micro-grid system, can with the power storage in the micro-grid system in energy storage device, realize the two-way controllable flow of energy again.
Specifically, first energy storage device comprises that lead-acid battery, nickel are that battery, lithium are electrochemical energy storage devices such as battery and flow battery, sodium-sulphur battery, also can comprise various electric capacity.First energy storage device is realized the extensive quick storage of electric energy, can tolerate quick charge or discharge.Two way convertor is the voltage-type 3-phase power converter, is made up of two parts, and left-hand component is the DC converting link, directly is connected with first energy storage device, realizes the charge/discharge to first energy storage device.According to the needs of practical application, can comprise and boosting, step-down, the DC transfer circuit of various functions such as buck can be Boost, Buck, various forms of circuit topologies such as Buck-boost.Right-hand component is a DC-AC inversion link, all can keep the output voltage of three-phase equilibrium under any uncompensated load, can be to realize the randomly topologically structured of three-phase equilibrium voltage output.First energy storage device and two way convertor support for micro-grid system provides the three-phase voltage of amplitude and frequency stabilization together, and energy can be realized two-way flowing freely via two way convertor between the little electrical network and first energy storage device.
Generating set is connected on the electric power transmission network, by to first energy storage device residue energy storage assessment, on the electricity consumption fundamentals of forecasting of first load, judges the power shortage of micro-grid system.Can shift to an earlier date the starter-generator group when energy shortage, and make generating set with rated power output operation a period of time, generating set operates in the peak efficiency state, if there is unnecessary energy will be stored in first energy storage device.
Further, described generating set can be the fuel electric generator group, also can be the gas electricity generator group.
Described renewable energy power generation power supply, second energy storage device and three port current transformers are formed the energy smooth unit, and wherein core apparatus is three port current transformers.Three port current transformers are made up of three parts, and the DC part in left side directly is connected with the renewable energy power generation power supply, and the AC part on right side directly is connected with little grid power transmission network, and middle DC part directly is connected with second energy storage device.The instant at random maximum power that the DC-DC link of left side and centre is sent the renewable energy power generation power supply is converted to direct current and is stored in second energy storage device.Middle DC-AC link with the right side is transported to the form of the direct current in second energy storage device with controlled AC power source (controlled active power and/or reactive power output) in the micro-grid system, perhaps with the form of controlled AC power source (controlled active power and/or reactive power output) with the power delivery in little electrical network in second energy storage device.The energy smooth unit can realize that the controllable bidirectional of energy flows freely.When the renewable energy power generation power supply was abundant, after the regenerative resource process storage smoothly with input at random, the AC power that is converted to stable and controllable was transported in little electrical network.Energy in little electrical network is more than needed, be that other local renewable energy power generation is when more than needed, unnecessary store energy can be stored in second energy storage device, therefore can realize the mutual support of energy between a plurality of energy smooth unit, regulate mutually, improved the reliability and the controllability of system.
In addition, described independent micro-grid system can also comprise the second renewable energy power generation power supply and second combining inverter; The described second renewable energy power generation power supply is connected to electric power transmission network by second combining inverter.In this case, regenerative resource input at random immediately is converted into output electric energy at random, form with current source is injected in the micro-grid system, the stability of micro-grid system is brought very big influence, and the quality of power supply is brought very big negative effect, the voltage flicker that causes of wind power generation etc. for example, therefore this proportion of form in little electrical network that utilizes can not be too big, only suitablely adopts on a small scale.
Further, can also can comprise that described power quality controlling unit, power quality controlling unit comprises reactive power compensator, dynamic voltage compensator according to the practical application needs in the described zone, power quality controlling devices such as harmonic treating apparatus satisfy the user to the requirement with electricity quality; Also can adopt part the 3rd renewable energy power generation power supply directly to be incorporated into the power networks through the 3rd combining inverter.Regenerative resource input at random immediately is converted into output electric energy at random in this case, form with current source is injected in the micro-grid system, the stability of micro-grid system is brought very big influence, and the quality of power supply is brought very big negative effect, voltage flicker of causing of wind power generation etc. for example, therefore this proportion of form in the structure of independent micro-grid system of the present invention that utilizes can not be too big, only suitable employing on a small scale.Excessive for fear of random shock, also can in independent micro-grid system of the present invention, cancel this form of utilizing that directly is incorporated into the power networks and exports.
In addition, the electric power transmission network of described micro-grid system can be star, annular, any suitable topological structure such as tree-like, and the power transmission and transformation part can increase step-up transformer as required, step-down transformer, and described step-up transformer and step-down transformer are connected on the electric power transmission network.
Please continue to consult Fig. 3, Fig. 3 is the composition structural representation of the independent micro-grid system of second embodiment of the invention.This is the structure structure of an island independence micro-grid system.Described micro-grid system is made up of 3 zones, electric power transmission network, batteries, two way convertor, diesel generating set etc.Batteries and two way convertor constitute the voltage node (balance node) of little electrical network, support for little electrical network provides the three-phase voltage of amplitude and frequency stabilization.The composition in zone 1 and zone 2 is identical, each zone is formed by energy smooth unit, local load, power quality controlling unit, building photovoltaic and combining inverter, wherein, in the present embodiment, described regional 1 and zone 2 energy smooth unit comprise photovoltaic, batteries and three port transformers, the energy smooth unit be input as photovoltaic.Zone 3 is made up of energy smooth unit, peak regulation load (ice accumulation of energy), power generation with marine energy, biogas power generation unit, photovoltaic, combining inverter, injects for micro-grid system provides powerful power.Wherein, described regional 3 energy smooth unit comprises blower fan (wind-driven generator), batteries and three port transformers, and it is input as blower fan.Diesel generating set starts when the regenerative resource supply of electric power is not enough, operates in rated output power and provides auxiliary supply of electric power for little electrical network.The island load has local characteristics of assembling, and electric power transmission network therefore shown in Figure 3 adopts the middle pressure electric power transmission network of 380V-10KV-380V.
The independent little electrical network in island shown in Figure 3, make full use of the solar energy on island, wind energy, renewable energy power generations such as oceanic energy, and the island house refuse is handled (being used for biogas power generation), utilize the low power consumption of little electrical network to carry out the ice making cold-storage, commercial and fishery cooling for the island, therefore the micro-grid system has here promoted the island socio-economic development greatly for the island energy provides a comprehensive solution.Little electric network composition shown in Figure 3 is clear, is easy to expansion, has bigger promotional value.
Independent micro-grid system of the present invention presents the layered distribution type general layout, and each zone had both kept relative independence, can intercommunicate support again, carries out Power Exchange.This networking mode also helps the scheduling controlling of independent micro-grid system, its layered distribution type structure makes both can carry out Local Optimization Algorithm, can also carry out global optimization approach, each Regional Synergetic effect makes the charge and discharge maintenance work of energy storage device become easier and does not produce extra consumption.
A kind of independent micro-grid system provided by the present invention, make full use of the space-time complementarity of regenerative resource, improve the economy of energy supplying system,, realize extensive efficient utilization of regenerative resource for the user provides reliability height, good stability, the excellent green electric power supply of cost performance.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. an independent micro-grid system is characterized in that, comprises voltage node, generating set, first load, electric power transmission network and a plurality of zone and a plurality of interconnection switch; Each zone comprises a power node; Each power node further comprises renewable energy power generation power supply, second energy storage device, three port current transformers and second load; Described voltage node further comprises first energy storage device and two way convertor; Described first energy storage device is connected to electric power transmission network by two way convertor, the described generating set and first load are directly connected to electric power transmission network respectively, the described renewable energy power generation power supply and second energy storage device are connected on the interconnection switch by three port current transformers respectively, and described second load is connected to electric power transmission network by interconnection switch.
2. independent micro-grid system according to claim 1 is characterized in that, also comprises the second renewable energy power generation power supply and second combining inverter; The described second renewable energy power generation power supply is connected to electric power transmission network by second combining inverter.
3. independent micro-grid system according to claim 1 and 2 is characterized in that, each zone also comprises power quality controlling unit, the 3rd renewable energy power generation power supply and the 3rd combining inverter; Described power quality controlling unit is connected to electric power transmission network by corresponding interconnection switch; Described the 3rd renewable energy power generation power supply is connected to electric power transmission network by the 3rd combining inverter and corresponding interconnection switch.
4. independent micro-grid system according to claim 1 is characterized in that, described generating set is diesel generating set or fuel gas generation unit.
5. independent micro-grid system according to claim 1 is characterized in that, described renewable energy power generation power supply comprises wind power generation, solar power generation, power generation with marine energy, biomass power generation.
6. independent micro-grid system according to claim 1 is characterized in that, described first energy storage device and second energy storage device all are electrochemical energy storage devices.
7. independent micro-grid system according to claim 6 is characterized in that, described electrochemical energy storage device is that lead-acid battery, nickel are that battery, lithium are battery, flow battery or sodium-sulphur battery.
8. independent micro-grid system according to claim 1 is characterized in that described electric power transmission network is a topological structure.
9. independent micro-grid system according to claim 7 is characterized in that, described topological structure is star, annular or tree-like.
10. independent micro-grid system according to claim 1 is characterized in that, described independent micro-grid system also comprises step-up transformer and step-down transformer, and described step-up transformer and step-down transformer are connected on the electric power transmission network.
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| CN102684215A (en) * | 2012-03-27 | 2012-09-19 | 中国东方电气集团有限公司 | Energy management system for grid-connected operation of wind and photovoltaic power storage micro-grid system |
| CN102904281A (en) * | 2012-10-25 | 2013-01-30 | 同济大学 | Micro-grid system for ships |
| CN102916453A (en) * | 2011-08-04 | 2013-02-06 | 上海狮虎能源科技发展有限公司 | Energy management control system |
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| CN109193803A (en) * | 2018-09-25 | 2019-01-11 | 湖北追日电气股份有限公司 | Multiple-energy-source intelligent control integratedization system and multiple-energy-source intelligent control method |
| CN111463824A (en) * | 2020-04-10 | 2020-07-28 | 北京钛橙智驾科技有限公司 | Movable power generation system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134991B (en) * | 2014-08-22 | 2016-03-02 | 中国人民解放军国防科学技术大学 | A kind of three-port DC bus Voltage stabilizing module towards direct-current grid |
| CN108110760B (en) * | 2018-01-11 | 2020-09-15 | 中国石油大学(华东) | Micro-grid system harmonic coordination control method considering power grid harmonic waves and load harmonic waves |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330211A (en) * | 2008-07-16 | 2008-12-24 | 沈阳西东控制技术有限公司 | Micro-electric network system capable of generating and using electricity using renewable energy resources comprehensively |
| CN101436778A (en) * | 2008-12-12 | 2009-05-20 | 华南理工大学 | Networking method for minitype electric network |
| CN101510686A (en) * | 2009-03-26 | 2009-08-19 | 上海交通大学 | Micro electric network coordination control system based on multi-proxy technology |
| JP2010011711A (en) * | 2008-06-30 | 2010-01-14 | Kawasaki Heavy Ind Ltd | Microgrid using electric railroad system |
| US7687937B2 (en) * | 2005-03-18 | 2010-03-30 | Wisconsin Alumni Research Foundation | Control of small distributed energy resources |
| CN201797324U (en) * | 2010-07-30 | 2011-04-13 | 北京市电力公司 | Intelligent microgrid |
-
2010
- 2010-12-03 CN CN2010105729950A patent/CN102074952B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7687937B2 (en) * | 2005-03-18 | 2010-03-30 | Wisconsin Alumni Research Foundation | Control of small distributed energy resources |
| JP2010011711A (en) * | 2008-06-30 | 2010-01-14 | Kawasaki Heavy Ind Ltd | Microgrid using electric railroad system |
| CN101330211A (en) * | 2008-07-16 | 2008-12-24 | 沈阳西东控制技术有限公司 | Micro-electric network system capable of generating and using electricity using renewable energy resources comprehensively |
| CN101436778A (en) * | 2008-12-12 | 2009-05-20 | 华南理工大学 | Networking method for minitype electric network |
| CN101510686A (en) * | 2009-03-26 | 2009-08-19 | 上海交通大学 | Micro electric network coordination control system based on multi-proxy technology |
| CN201797324U (en) * | 2010-07-30 | 2011-04-13 | 北京市电力公司 | Intelligent microgrid |
Non-Patent Citations (1)
| Title |
|---|
| 王成山 等: "微网实验系统结构特征及控制模式分析", 《电力系统自动化》 * |
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| CN102684215B (en) * | 2012-03-27 | 2014-08-27 | 中国东方电气集团有限公司 | Energy management system for grid-connected operation of wind and photovoltaic power storage micro-grid system |
| CN102684215A (en) * | 2012-03-27 | 2012-09-19 | 中国东方电气集团有限公司 | Energy management system for grid-connected operation of wind and photovoltaic power storage micro-grid system |
| CN103715752A (en) * | 2012-10-08 | 2014-04-09 | 周锡卫 | Distributed new-energy electric-power microgrid system with piconet structure |
| CN103715752B (en) * | 2012-10-08 | 2016-04-20 | 周锡卫 | A kind of distributed new electric power micro-grid system with piconet structure |
| CN102904281A (en) * | 2012-10-25 | 2013-01-30 | 同济大学 | Micro-grid system for ships |
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| CN103414215A (en) * | 2013-09-10 | 2013-11-27 | 南车株洲电力机车研究所有限公司 | Distributed power supply system |
| CN104682398B (en) * | 2015-03-26 | 2016-09-07 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of independent micro-grid electric power system power supply reliability load cutting method |
| CN104682398A (en) * | 2015-03-26 | 2015-06-03 | 中国电力工程顾问集团西南电力设计院有限公司 | Load reduction method for realizing power supply reliability of independent micronet power supply system |
| CN104701842A (en) * | 2015-03-26 | 2015-06-10 | 中国电力工程顾问集团西南电力设计院有限公司 | Independent micro-grid power supply system and power supply reliability evaluation method |
| CN105406515A (en) * | 2015-12-29 | 2016-03-16 | 中国科学院广州能源研究所 | Hierarchically-controlled independent microgrid |
| CN105406515B (en) * | 2015-12-29 | 2019-03-08 | 中国科学院广州能源研究所 | The independent micro-grid of grading control |
| CN107465194A (en) * | 2016-06-06 | 2017-12-12 | 黄秉钧 | Polynary more group region mutual aid type electricity generation systems |
| CN106099985A (en) * | 2016-08-03 | 2016-11-09 | 周锡卫 | A kind of grid type micro-grid system of electrically-based electric energy recon micro-capacitance sensor |
| CN106099985B (en) * | 2016-08-03 | 2018-07-10 | 周锡卫 | A kind of grid type micro-grid system based on electric power electric energy recon micro-capacitance sensor |
| CN106451416A (en) * | 2016-09-08 | 2017-02-22 | 上海中远船务工程有限公司 | DP3 deepwater drilling ship closed loop high voltage distribution system |
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