CN114221324A - Source network charge storage multidimensional collaborative planning method for honeycomb power distribution network - Google Patents
Source network charge storage multidimensional collaborative planning method for honeycomb power distribution network Download PDFInfo
- Publication number
- CN114221324A CN114221324A CN202111316739.XA CN202111316739A CN114221324A CN 114221324 A CN114221324 A CN 114221324A CN 202111316739 A CN202111316739 A CN 202111316739A CN 114221324 A CN114221324 A CN 114221324A
- Authority
- CN
- China
- Prior art keywords
- power supply
- power
- energy storage
- standby
- grid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004146 energy storage Methods 0.000 claims description 97
- 238000010248 power generation Methods 0.000 claims description 17
- 230000001413 cellular effect Effects 0.000 claims description 10
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06313—Resource planning in a project environment
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
-
- 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
-
- 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
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Landscapes
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Human Resources & Organizations (AREA)
- Economics (AREA)
- Power Engineering (AREA)
- Strategic Management (AREA)
- General Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Entrepreneurship & Innovation (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Marketing (AREA)
- Tourism & Hospitality (AREA)
- Educational Administration (AREA)
- Operations Research (AREA)
- Biodiversity & Conservation Biology (AREA)
- Development Economics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Game Theory and Decision Science (AREA)
- Quality & Reliability (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a source network charge storage multi-dimensional collaborative planning method for a honeycomb power distribution network. In order to solve the problem that the power grid in the prior art is difficult to ensure the safety and stability of the operation of the power grid on the basis of utilizing new energy to generate electricity, the invention adopts a honeycomb power grid topological structure, and designs a power grid planning mode of a main power supply and a standby power supply in three states, so that the voltage of the power grid is always kept stable, and the problem of voltage surge or sudden drop cannot occur at will.
Description
Technical Field
The invention relates to the field of power distribution network planning methods, in particular to a source network load storage multi-dimensional collaborative planning method for a honeycomb power distribution network.
Background
In the prior art, the source-grid-load-storage interactive operation oriented to the power system refers to various interactive forms such as source-source complementation, source-grid coordination, grid-load interaction, grid-storage interaction, source-load interaction and the like among a power supply, a power grid, a load and energy storage, but the conventional power system does not get rid of the tradition of source follow-up load substantially, and on the basis of energy conservation and emission reduction, the problem of ensuring the safety and stability of power grid operation is a big problem; in addition, distributed energy is greatly increased, and coordination and control between source network charge storage are gradually complicated after massive flexible resources are accessed into a power grid, so that the problem that the safety and stable operation of the power grid can not be guaranteed on the basis of meeting the requirement of new energy access in the existing network exists.
For example, in a "grid-connected microgrid system based on an electric power and electric energy exchange sub-microgrid" disclosed in the chinese patent document, the publication No. CN106099985B discloses that a new energy microgrid connected to a public power grid is designed as two sub-microgrid systems capable of operating independently, namely, a grid-connected microgrid and an electric power and electric energy exchange sub-microgrid, and respective controlled switches are connected to the public power grid, and the electric power and electric energy exchange sub-microgrid is controlled to selectively communicate with the grid-connected microgrid or the public power grid, so that the grid-connected microgrid and the public power grid operate independently and the electric power and electric energy exchange sub-microgrid undertakes seamless exchange of electric power between the grid-connected microgrid and the public power grid, thereby realizing electric energy complementary operation of the microgrid and the public power grid; because the new energy power generation has instability, the scheme completely uses the new energy power generation, so that a single sub-network has a certain degree of deficiency in the absorption capacity, and the sub-network is connected with a public network in a grid mode to operate, although the power generation pressure of the sub-network is reduced, the public network can run under the burden.
Disclosure of Invention
The invention mainly solves the problem that the power grid in the prior art is difficult to ensure the safety and stability of the power grid operation on the basis of generating power by utilizing new energy; a source network load storage multi-dimensional collaborative planning method for a honeycomb power distribution network is provided.
The technical problem of the invention is mainly solved by the following technical scheme:
the invention comprises the following steps: establishing a honeycomb source network charge storage multi-dimensional collaborative basic model, establishing a power supply system topological structure connection relation, and setting specific unit power generation time; acquiring parameters such as a basic system architecture of a power distribution network, power information of a power generation unit, load characteristics of a load unit, coefficients of an energy storage unit and the like; calculating the energy storage power of the power grid, and constructing an overall planning scheme of an energy storage module, a power supply system and flexible equipment; and obtaining the honeycomb source network charge-storage multidimensional collaborative planning method.
Preferably, the cellular source network charge-storage multi-dimensional cooperative basic model comprises a plurality of rhombic micro-grid topological structures, and the micro-grid topological structures are connected with one another to form a hexagonal regular cellular network topological structure; contain a pair of main power source and a pair of stand-by power supply in the microgrid topological structure, the main power source is connected with stand-by power supply and forms electrical power generating system topological structure, electrical power generating system topological structure internal connection has energy storage module, a plurality of main control basic stations are connected respectively in the outside four corners of electrical power generating system topological structure, 3 ~ 6 microgrids are connected and controlled to every main control basic station, wherein hexagon honeycomb topological structure can make whole electric wire netting operation have regularity and stability more, the main power source has ensured the stability of grid voltage with stand-by power supply's setting.
Preferably, the main power supply generates power by adopting clean energy, and the standby power supply generates power by adopting a conventional mode; in the topological structure of the power supply system, the first main power supply and the first standby power supply are arranged adjacently, the first standby power supply and the second main power supply are arranged adjacently, the second main power supply and the second standby power supply are arranged adjacently, the second standby power supply and the first main power supply are arranged adjacently, new energy is used for generating power as the main power supply in a source complementation mode, the overall carbon emission of a power grid is reduced, a conventional power generation means is used for making follow-up power generation guarantee, the voltage in the power grid is stabilized, and the voltage stability of the power grid is maintained on the basis of energy conservation and emission reduction as far as possible.
Preferably, the master base station is divided into a first base station and a second base station, and in the topological structure of the master base station, the first base station and the second base station are both provided with an energy storage control end and a power supply control end for connecting and controlling the power supply system and the energy storage module, and the master base station is divided into the first base station and the second base station, and the two base stations are used for respectively controlling the two types of energy sources, so that the complexity of power grid cooperative control is reduced, and the control of the two types of power supplies and the energy storage module is more convenient.
Preferably, the main power supply and the standby power supply are both provided with an energy storage connecting end and a base station connecting end, in the micro-grid topological structure, the energy storage connecting end of the main power supply is connected with an energy storage module in the power supply system, and the base station connecting end of the main power supply is connected with the power supply control end of one type of base station; and the energy storage connecting end of the standby power supply is connected with the energy storage module in the power supply system, and the base station connecting end of the standby power supply is connected with the power supply control end of the second-class base station.
Preferably, the power grid comprises three working states during working: a normal operation state, an energy storage calling state and a standby operation state; under the normal operation state, the main power supply in the power supply system generates power by means of clean energy, and meanwhile, the residual electric energy is stored in the energy storage module, so that the stable power generation is maintained, and the intermittent starting is standby at the momentPerforming cooperative energy storage by using a power supply, not starting a standby power supply in a short period when the stored energy reaches a set highest threshold, and reducing or stopping the stored energy of the main power supply; in the energy storage calling state, the main power supply cannot normally run due to energy factors, the energy storage module is started to discharge at the moment, and the standby power supply is intermittently started to perform compensation power generation; in a standby operation state, the main power supply cannot be used and the electric energy in the energy storage module reaches a minimum threshold value, so that the standby power supply is started to charge and intermittently supply power to the energy storage module until the standby power supply is converted into an energy storage calling state; the relevant parameters of the energy storage module are set as follows: the energy storage power set in the normal operation state, the energy storage calling state and the standby operation state is respectively PX、PYAnd PZSetting N groups of micro-grids in the main grid, and setting the maximum threshold, the median and the minimum threshold of the energy storage module as Pmax、PnormalAnd Pmin(ii) a In the step, a planning scheme of the energy storage module, the power supply system and the flexible equipment is set up, and parameters required for calculating the energy storage power are set.
Preferably, when the power grid is in a normal operation state, the available energy storage power in the normal state is as follows,
wherein P is1Is the main power supply power,
intermittent generation of power for stand-by power supplies, PUSEFor grid consumption, P is calculatedxThen, the real-time judgment is carried out on the data, if the following inequality is satisfied
Pnormal＜PX＜Pmax
Continuously maintaining the state of intermittent power supply of the main power supply generation standby power supply, and supplying P to the energy storage modulexPower storage if the following inequality is satisfied
PX≥Pmax
Stopping the intermittent power supply of the standby power supply; the energy storage module maximum threshold is exceeded at this point, thus stopping power to the energy storage module and stopping intermittent power supply from the backup power source.
Preferably, when the power grid is in the energy storage calling state, the energy storage power in the energy storage calling state can be obtained according to the power conservation law as follows,
wherein P isfFor the discharge power of the energy storage module, P is calculatedYThen real-time judgment is carried out, if the following inequality is satisfied
Pmin＜PY＜Pnormal
The energy storage module continues to discharge, and the standby power supply continues to be used for intermittent discharge, so that the following inequality is satisfied
PY≤Pmin
The energy storage module stops discharging to make PfApproaching 0 and entering a standby operation state; at the moment, the minimum threshold value of the energy storage module is lower than the minimum threshold value of the energy storage module, so that the energy storage module stops supplying power, and the power grid automatically enters a standby operation state.
Preferably, when the power grid is in the standby operation state, the available energy storage power in the standby operation state is as follows,
PZ＝6N(P2-PUSE)
calculating PZThen, the real-time judgment is carried out on the data, if the following inequality is satisfied
Pmin＜PZ＜Pmax
Continuing to use the standby power supply for power supply and energy storage if the following inequality is satisfied
PZ＞Pmax
Then the system is switched into an energy storage calling state; at the moment, the running state of the power grid gradually tends to be normal, at the moment, if the main power supply is recovered, the normal running state can be entered, and if the main power supply is still recovered, the mode in the energy storage calling state is still adopted.
The invention has the beneficial effects that:
1. the scheme uses new energy as main power generation energy, and realizes energy conservation and emission reduction to the maximum extent;
2. the scheme designs a planning mode of the main power supply and the standby power supply in three states, so that the voltage of the power grid is always kept stable, and the problem of sudden increase or sudden drop of the voltage cannot occur at will;
3. the scheme adopts a honeycomb power grid topological structure, so that the whole power grid has more regularity and safety.
Drawings
Fig. 1 is a diagram of a piconet topology according to the present invention;
fig. 2 is a diagram of the topology of the cellular host network of the present invention;
in the figure, 1 is a main power supply, 2 is a standby power supply, 3 is an energy storage module, 4-1 is a first-class base station, and 4-2 is a second-class base station.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
the source network load-storage multidimensional collaborative planning method for the honeycomb power distribution network in the embodiment is shown in fig. 1 and fig. 2, and includes a rhombic micro-grid topological structure, wherein four corners of the topological structure are connected with a main control base station, and a plurality of rhombic micro-grid topological structures are connected through the main control base station to form a hexagonal regular honeycomb main grid topological structure; the master control base station comprises a first class base station and a second class base station; the topological structure of the microgrid is internally provided with a power supply system and an energy storage module which are connected with each other, the power supply system is divided into a main power supply 1 and a standby power supply 2, the main power supply and the standby power supply are alternately arranged along the opposite angles of the rhombic microgrid topological structure, the main power supply and the standby power supply are respectively connected with the energy storage module, the main power supply is connected with a first-class base station, the standby power supply is connected with a second-class base station, and the first-class base station and the second-class base station in the main control base station respectively control the two-class power supply to transmit power to a power grid or transmit power to the energy storage module.
The power grid comprises three states during working: the power supply system mainly depends on a main power supply to generate power and is matched with a standby power supply room in the normal running stateThe power supply is intermittently carried out, the voltage stability can be ensured after the new energy power generation is introduced, and the power supply is started when the new energy power generation is started
The energy storage power of the energy storage module is calculated, the energy storage module can be guaranteed to be capable of successfully storing energy, and the time for stopping energy storage of the energy storage module can be better controlled through real-time comparison with the maximum energy storage threshold; when the main power supply cannot normally generate power due to the new energy problem, the power grid enters an energy storage bar calling state, and in the operating state, the power grid mainly maintains the voltage balance in the power grid by means of the discharge of an energy storage module and the intermittent power generation of a standby power supply, and the power grid is connected with the standby power supply through a power supply module
Calculating energy storage power, simultaneously comparing the energy storage power with an energy storage minimum threshold in real time, stopping discharging of an energy storage module once the energy storage power reaches the minimum threshold, and enabling the power grid to run to a standby running state; in the standby operation state, the standby energy is used for generating power through PZ＝6N(P2-PUSE) And calculating the energy storage power of the power grid until the power grid is restored to an energy storage calling state.
It should be understood that the examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (9)
1. The source network charge storage multidimensional collaborative planning method of the honeycomb power distribution network is characterized by comprising the following steps:
1) establishing a honeycomb source network charge storage multi-dimensional collaborative basic model, establishing a power supply system topological structure connection relation, and setting specific unit power generation time;
2) acquiring parameters such as a basic system architecture of a power distribution network, power information of a power generation unit, load characteristics of a load unit, coefficients of an energy storage unit and the like;
3) calculating the energy storage power of the power grid, and constructing an overall planning scheme of an energy storage module, a power supply system and flexible equipment;
4) and obtaining the honeycomb source network charge-storage multidimensional collaborative planning method.
2. The source network charge-storage multidimensional collaborative planning method for the cellular power distribution network according to claim 1, characterized in that the cellular source network charge-storage multidimensional collaborative basic model comprises a plurality of rhombic micro-grid topological structures, and the micro-grid topological structures are connected with each other to form a hexagonal regular cellular network topological structure; the micro-grid topological structure comprises a pair of main power sources and a pair of standby power sources, the main power sources are connected with the standby power sources to form a power system topological structure, an energy storage module is connected inside the power system topological structure, a plurality of main control base stations are connected to four outer corners of the power system topological structure respectively, and each main control base station is connected with and controls 3-6 micro-grids.
3. The source network charge-storage multidimensional collaborative planning method for the honeycomb power distribution network according to claim 2, characterized in that the main power source generates power by using clean energy, and the standby power source generates power by using a conventional manner; in the topological structure of the power supply system, the first main power supply and the first standby power supply are arranged adjacently, the first standby power supply and the second main power supply are arranged adjacently, the second main power supply and the second standby power supply are arranged adjacently, and the second standby power supply and the first main power supply are arranged adjacently.
4. The source network charge-storage multidimensional collaborative planning method of the cellular power distribution network according to claim 2, wherein the master base station is divided into a first class base station and a second class base station, and in a topology structure of the master base station, the first class base station and the second class base station are both provided with an energy storage control end and a power supply control end for connecting and controlling the energy storage module and the power supply system.
5. The source network charge-storage multidimensional collaborative planning method for the honeycomb-shaped power distribution network according to claim 2, characterized in that the main power supply and the backup power supply are both provided with energy storage connecting ends and base station connecting ends, in the micro-grid topology structure, the energy storage connecting end of the main power supply is connected with an energy storage module in a power supply system, and the base station connecting end of the main power supply is connected with a power supply control end of a base station of one kind; and the energy storage connecting end of the standby power supply is connected with the energy storage module in the power supply system, and the base station connecting end of the standby power supply is connected with the power supply control end of the second-class base station.
6. The source network charge-storage multidimensional collaborative planning method for the cellular power distribution network according to claim 1, wherein the power grid comprises three working states during working: a normal operation state, an energy storage calling state and a standby operation state; in the normal operation state, a main power supply in the power supply system generates power by means of clean energy, and simultaneously stores residual electric energy into an energy storage module, in order to maintain stable power generation, the standby power supply is intermittently started to perform collaborative energy storage, and when the stored energy reaches a set maximum threshold value, the standby power supply is not started in a short period of time, and the stored energy of the main power supply is reduced or stopped; in the energy storage calling state, the main power supply cannot normally run due to energy factors, the energy storage module is started to discharge at the moment, and the standby power supply is intermittently started to perform compensation power generation; in a standby operation state, the main power supply cannot be used and the electric energy in the energy storage module reaches a minimum threshold value, so that the standby power supply is started to charge and intermittently supply power to the energy storage module until the standby power supply is converted into an energy storage calling state; the relevant parameters of the energy storage module are set as follows: the energy storage power set in the normal operation state, the energy storage calling state and the standby operation state is respectively PX、PYAnd PZSetting N groups of micro-grids in the main grid, and setting the maximum threshold, the median and the minimum threshold of the energy storage module as Pmax、PnormalAnd Pmin。
7. The source grid charge-storage multidimensional collaborative planning method of the cellular power distribution network of claim 6, wherein when the power grid is in a normal operation state, the energy storage power in the normal state can be obtained as follows,
wherein P is1Is the main power supply power,
intermittent generation of power for stand-by power supplies, PUSEFor grid consumption, P is calculatedxThen, the real-time judgment is carried out on the data, if the following inequality is satisfied
Pnormal＜PX＜Pmax
Continuously maintaining the state of intermittent power supply of the main power supply generation standby power supply, and supplying P to the energy storage modulexPower storage if the following inequality is satisfied
PX≥Pmax
The standby power supply is stopped from intermittently supplying power.
8. The source network charge-storage multidimensional collaborative planning method of the honeycomb power distribution network of claim 6, wherein when the power grid is in the energy storage calling state, the energy storage power in the energy storage calling state can be obtained according to the power conservation law as follows,
wherein P isfFor the discharge power of the energy storage module, P is calculatedYThen real-time judgment is carried out, if the following inequality is satisfied
Pmin＜PY＜Pnormal
The energy storage module continues to discharge, and the standby power supply continues to be used for intermittent discharge, so that the following inequality is satisfied
PY≤Pmin
The energy storage module stops discharging to make PfGoes to 0 and enters a standby operating state.
9. The source grid charge-storage multidimensional collaborative planning method of the cellular power distribution network according to claim 6, wherein when the power grid is in a standby operation state, the available energy storage power in the standby operation state is as follows,
PZ＝6N(P2-PUSE)
calculating PZThen, the real-time judgment is carried out on the data, if the following inequality is satisfied
Pmin＜PZ＜Pmax
Continuing to use the standby power supply for power supply and energy storage if the following inequality is satisfied
PZ＞Pmax
The state is transferred to the energy storage calling state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111316739.XA CN114221324B (en) | 2021-11-05 | 2021-11-05 | Multi-dimensional collaborative planning method for source network load storage of honeycomb type power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111316739.XA CN114221324B (en) | 2021-11-05 | 2021-11-05 | Multi-dimensional collaborative planning method for source network load storage of honeycomb type power distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114221324A true CN114221324A (en) | 2022-03-22 |
| CN114221324B CN114221324B (en) | 2023-07-28 |
Family
ID=80696713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111316739.XA Active CN114221324B (en) | 2021-11-05 | 2021-11-05 | Multi-dimensional collaborative planning method for source network load storage of honeycomb type power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114221324B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375616A (en) * | 2015-12-09 | 2016-03-02 | 武汉精伦电气有限公司 | Distribution network feeder terminal unit power supply management system and method |
| CN107492909A (en) * | 2017-10-08 | 2017-12-19 | 浙江大学 | A kind of distributed active power distribution network topology |
| CN111697591A (en) * | 2020-06-30 | 2020-09-22 | 中国科学院电工研究所 | Honeycomb multi-station fusion power distribution network system and operation control method thereof |
| CN112054589A (en) * | 2019-06-05 | 2020-12-08 | 周锡卫 | Multi-power-supply seamless switching system based on energy storage and control method |
| CN112994019A (en) * | 2021-03-30 | 2021-06-18 | 中国科学院电工研究所 | Flexible interconnected power distribution network system |
-
2021
- 2021-11-05 CN CN202111316739.XA patent/CN114221324B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375616A (en) * | 2015-12-09 | 2016-03-02 | 武汉精伦电气有限公司 | Distribution network feeder terminal unit power supply management system and method |
| CN107492909A (en) * | 2017-10-08 | 2017-12-19 | 浙江大学 | A kind of distributed active power distribution network topology |
| CN112054589A (en) * | 2019-06-05 | 2020-12-08 | 周锡卫 | Multi-power-supply seamless switching system based on energy storage and control method |
| CN111697591A (en) * | 2020-06-30 | 2020-09-22 | 中国科学院电工研究所 | Honeycomb multi-station fusion power distribution network system and operation control method thereof |
| CN112994019A (en) * | 2021-03-30 | 2021-06-18 | 中国科学院电工研究所 | Flexible interconnected power distribution network system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114221324B (en) | 2023-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110601248B (en) | Multi-mode coordination control method of annular alternating current-direct current hybrid micro-grid system | |
| Li et al. | A dual-window DC bus interacting method for DC microgrids hierarchical control scheme | |
| CN103650285A (en) | System and method for integrating and managing demand/response between alternative energy sources, grid power, and loads | |
| CN103441520A (en) | Micro-grid distribution type new energy storage system | |
| CN110544961A (en) | dynamic economic dispatching method for isolated grid type alternating current-direct current hybrid micro-grid | |
| CN111725808B (en) | Singular perturbation-based distributed convergence control method and system for comprehensive energy system | |
| CN107492909A (en) | A kind of distributed active power distribution network topology | |
| CN117411007A (en) | Distribution network low-voltage treatment method combining distributed photovoltaic and energy storage | |
| CN112448416A (en) | Off-grid type micro-grid group and power balance control method thereof | |
| CN106998099B (en) | Mobile energy storage power supply system access and exit control method under uninterrupted power supply condition | |
| CN109004639A (en) | Power distribution network switched-mode power supply recovery policy optimization method based on complete distributed algorithm | |
| CN114221324A (en) | Source network charge storage multidimensional collaborative planning method for honeycomb power distribution network | |
| CN114221322A (en) | Honeycomb distribution network system structure | |
| CN111211567A (en) | Island micro-grid distributed optimal frequency adjusting method based on event trigger mechanism | |
| CN108711875B (en) | Distributed energy storage unit coordination control system and control method | |
| CN216564512U (en) | Multi-port direct-current router for source load storage coordinated operation | |
| CN104124683A (en) | Autonomous electrical power system framework and operation control method thereof | |
| CN112994019B (en) | Flexible interconnected power distribution network system | |
| CN114362237A (en) | Multi-mode flexible direct-current power grid cooperative control method | |
| Xu et al. | Decentralized primary frequency regulation control strategy for vehicle-to-grid | |
| Chen et al. | Robust islanded restoration coordinating multiple distributed resources to enhance resilience of active distribution system | |
| Cheng et al. | Distributed control for multiple hybrid energy storage systems using consensus algorithm in direct current power supply system | |
| CN110581544A (en) | AI artificial intelligence AC/DC micro-grid transient, dynamic and stable state control method | |
| Yilin et al. | A distributed control based on finite-time consensus algorithm for the cluster of DC microgrids | |
| Xiong et al. | Cluster control research of DC-type distributed generators based on multi-microgrids technology under DC distribution system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |