CN114221322A - Honeycomb distribution network system structure - Google Patents
Honeycomb distribution network system structure Download PDFInfo
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- CN114221322A CN114221322A CN202111307695.4A CN202111307695A CN114221322A CN 114221322 A CN114221322 A CN 114221322A CN 202111307695 A CN202111307695 A CN 202111307695A CN 114221322 A CN114221322 A CN 114221322A
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- 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
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- 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
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- 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
- H02J3/381—Dispersed generators
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- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
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Abstract
The invention discloses a honeycomb-shaped power distribution network system structure. In order to solve the problems that the existing distributed power supply is insufficient in access capacity and difficult to control safety and stability, the invention adopts a topological structure of a rhombic micro-grid and a hexagonal honeycomb main grid and designs two layers of energy storage structures, so that the power grid is strong in overall stability, high in safety and independent, and the power transmission efficiency is guaranteed.
Description
Technical Field
The invention relates to the field of power grid structures, in particular to a honeycomb-shaped power distribution network system structure.
Background
The problem that the power grid is insufficient in access capacity due to large-scale development of the existing distributed power supply is solved, and the safety and the stability of the power grid are difficult to control due to the intermittence and the fluctuation of the distributed power supply, so that the power grid absorption capacity is improved, the energy storage angle is needed, and the intelligent scheduling capacity of the power grid is improved.
For example, a "microgrid system" disclosed in chinese patent literature, whose publication No. CN104348187 includes a structural design of at least one microgrid power generation unit, a microgrid energy control unit, a microgrid distributed control unit, a microgrid central control unit, a microgrid energy storage unit, a microgrid remote control unit, and a microgrid connection circuit, where a distributed power supply may cause a serious loss of electric energy during transmission, and this scheme improves the efficiency of electric energy transmission to a certain extent, but the effect is not significant, and it is difficult to guarantee the stability of the overall operation of the power grid while ensuring the transmission efficiency.
Disclosure of Invention
The invention mainly solves the problem that the safety and stability of the power grid are difficult to control due to the intermittency and the volatility of the distributed power supply in the prior art; the honeycomb power distribution network system structure is provided, so that the electric energy loss can be reduced to a great extent in the transmission process, and the safety and the stability of the operation of a power grid are ensured.
The technical problem of the invention is mainly solved by the following technical scheme:
the micro-grid comprises a micro-grid, a plurality of micro-grid topological structures and a plurality of energy storage modules, wherein the micro-grid topological structures are arranged in a rhombic shape and comprise a power supply system and the energy storage modules; the classification base station is arranged in the honeycomb main network topological structure, is connected among the micro-grids and is used for controlling the operation in the micro-grids and the transmission of information among the micro-grids; a power supply system and an energy storage module which are connected with each other are arranged in the micro-grid topological structure, the topological structure of the power supply system comprises a pair of main power supplies and a pair of standby power supplies, and the main power supplies and the standby power supplies are both provided with energy storage output ends and base station connecting ends; the rhombus is taken as a basic topological structure unit to show stability, a power supply system with double power supplies is added into the rhombus micro-grid topological structure, the voltage of a power grid is ensured to be constant to a great extent, and meanwhile, a large amount of energy is stored in a mode of 'discharging while storing electricity' to be used as the storage of electric energy; the power supply system is controlled in a classified mode through the classification base station, so that mutual interference between the main power supply and the standby power supply is avoided, and the whole power grid is safer.
Preferably, in a hexagonal honeycomb-shaped main network topology structure, four classification base stations are connected to four corners outside the micro-network topology structure to form a rhombic main network unit, a plurality of main network units are connected through the classification base stations to form the hexagonal honeycomb-shaped main network topology structure, micro-networks are not interfered with each other and are communicated with each other, transmission efficiency is guaranteed, and safety of a power grid is improved.
Preferably, in the topology structure of the power supply system, the first main power supply is arranged between a first standby power supply and a second standby power supply, the first standby power supply is arranged between the first main power supply and the second main power supply, and the main power supply and the standby power supply are alternately arranged in a surrounding manner; the energy storage module is arranged at the center of the microgrid, the energy storage output ends of the main power sources and the standby power sources are respectively connected with the energy storage module, and each main power source or each standby power source is respectively connected with one classification base station through the base station connecting end.
Preferably, the classification base station comprises a main power source base station and a standby power source base station, the main power source base station is connected with a main power source in the adjacent microgrid topology structure, and the standby power source base station is connected with a standby power source in the adjacent microgrid topology structure, so that the effect of classification control of power sources between adjacent microgrids is achieved.
Preferably, an intelligent switch for controlling the micro-grid to operate and a carbon processing structure for collecting carbon generated by the power grid are arranged in the classification base station, the carbon processing structure comprises a carbon capture structure and a carbon storage structure, and the carbon capture structure collects the carbon generated by the power grid to be stored in the carbon storage structure in a capture mode before combustion, so that the carbon is conveniently sealed and stored uniformly; the carbon treatment structure is arranged, so that the generated carbon is uniformly absorbed and then stored, and the subsequent sealing and storing work is facilitated.
Preferably, the energy storage module comprises a double-layer energy storage topological structure, the double-layer energy storage topological structure is provided with a first energy storage layer and a second energy storage layer, the first energy storage layer is provided with an input end, an output end and a control end, the second energy storage layer is provided with an input end, a conveying end and a control end, and the input end of the first energy storage layer is connected with the conveying end of the second energy storage layer; the double-layer energy storage structure improves the threshold value of the energy storage module, when the power grid has risks such as insufficient voltage, the first energy storage layer and the second energy storage layer are used alternately to discharge, the continuous charging and discharging fatigue of the energy storage module is relieved, and the safety of the power grid is improved.
Preferably, in the topology structure of the honeycomb main network, the control end of the first energy storage layer is connected with a classification base station; the input end of the second energy storage layer is connected with the energy storage output end of the main power supply or the standby power supply, the control end of the second energy storage layer is connected with the classification base station, and the connection between the classification base station and the energy storage module realizes the control of the load and storage time.
Preferably, a protection module is arranged in the energy storage module and used for transmitting information to the classification base station when the energy storage of the first energy storage layer and the second energy storage layer reaches a threshold value and disconnecting the input end of the second energy storage layer or the second energy storage layer in time; the energy storage module sends a lowest threshold value and a highest threshold value signal to the classification base station through the control ends of the first energy storage layer and the second energy storage layer, the classification base station feeds back information to the energy storage module through distinguishing the lowest threshold value signal and the highest threshold value signal, and the charging and discharging time of the two energy storage layers is controlled through the intelligent switch.
The invention has the beneficial effects that:
1. the scheme effectively improves the efficiency of the power grid in electric energy transmission;
2. the scheme adds a carbon treatment structure on the basis of using new energy and a conventional power generation means, and is low-carbon and environment-friendly;
3. the power grid of the scheme adopts a rhombic micro-grid topological structure and a hexagonal honeycomb main grid topological structure, so that the power grid is high in overall stability, independent and high in running safety;
4. the double-deck energy storage structure of this scheme design for energy storage efficiency obtains promoting with the energy storage efficiency, has guaranteed the stability of electric wire netting middling pressure, has ensured power transmission's efficiency.
Drawings
Fig. 1 is a diagram of a diamond-shaped 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 main power supply base station, and 4-2 is a standby power supply base station.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
as shown in fig. 1 and 2, the cellular power distribution network system structure of this embodiment includes a hexagonal regular cellular main network topology, where the main network topology includes a diamond-shaped micro-grid topology, four corners of the micro-grid topology are respectively connected to a classification base station, and the classification base station includes a main power base station 4-1 and a backup power base station 4-2; the diamond-shaped micro-grid topological structure internally comprises a power supply system, the power supply system internally comprises a main power supply and a standby power supply, wherein the main power supply generates power by using new energy, the standby power supply is used as an auxiliary power generation power supply, and the voltage in a power grid is ensured to be stable due to the existence of the standby power supply in a conventional power generation mode; equally dividing the rhombic microgrid topological structure into four blocks according to diagonal lines, wherein each block is respectively set as a main power supply or a standby power supply, the main power supply and the standby power supply are arranged along the diagonal lines and are adjacently arranged; the main power supply and the standby power supply are respectively provided with an energy storage output end and a base station connecting end, the main power supply and the standby power supply are connected with the energy storage module 3 through the energy storage output end, the main power supply is connected with the main power supply base station through the base station connecting end, and the standby power supply is connected with the standby power supply base station through the base station connecting end, so that the classified control of the power supplies is realized; the topological structure of the energy storage module is a double-layer structure and comprises a first energy storage layer and a second energy storage layer, wherein the first energy storage layer is provided with an input end, an output end and a control end, the second energy storage layer is provided with an input end, a conveying end and a control end, the input end of the first energy storage layer is connected with the conveying end of the second energy storage layer, so that electric energy can be conveniently transmitted from the second energy storage layer to the first energy storage layer, the output end of the first energy storage layer is used for releasing the stored energy into a power grid, the control end of the first energy storage layer is connected with a classification base station, and the using state of the energy storage layer is controlled through the classification base station; the input end of the second energy storage layer is connected with the energy storage output end of the main power supply or the standby power supply and is used for storing electric energy into the second energy storage layer, and the second energy storage layer is connected with the classification base station through the control end, receives a control instruction transmitted by the classification base station and transmits information to the classification base station; when the first energy storage layer reaches the maximum threshold value, the classification base station receives the message and immediately controls the conveying end of the second energy storage layer to stop working, when the second energy storage layer approaches the maximum threshold value, the control end transmits the message to the classification base station, the input end of the second energy storage layer is closed after feedback is obtained, energy storage is stopped, and when two energy storage layers discharge, the control end transmits the message to the classification base station so as to control the discharging time of the energy storage layers.
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. A cellular power distribution network system structure, comprising:
the microgrid is set to be a rhombic microgrid topological structure and comprises a power supply system and an energy storage module (3), and a plurality of microgrids are connected with one another to form a hexagonal honeycomb main network topological structure;
and the classification base station (4) is arranged in the honeycomb main network topological structure, is connected among the micro-grids and is used for controlling the operation inside the micro-grids and the transmission of information among the micro-grids.
2. The cellular power distribution network system structure of claim 1, wherein in a hexagonal cellular main network topology, four corners outside the microgrid topology are connected with four sorting base stations to form a diamond-shaped main network unit, and a plurality of main network units are connected through the sorting base stations to form the hexagonal cellular main network topology.
3. The cellular power distribution network system structure of claim 2, wherein a power system and an energy storage module are arranged inside the microgrid topology structure, the topology structure of the power system comprises a pair of main power sources (1) and a pair of backup power sources (2), and the main power sources and the backup power sources are both provided with energy storage output ends and base station connection ends.
4. A cellular power distribution network system structure according to claim 3, wherein in the topology of the power supply system, the first main power source is arranged between a first backup power source and a second backup power source, the first backup power source is arranged between the first main power source and the second main power source, and the main power source and the backup power source are alternately arranged around; the energy storage module (3) is arranged at the center of the microgrid, the energy storage output ends of the main power supply and the standby power supply are respectively connected with the energy storage module, and each main power supply or each standby power supply is respectively connected with one classification base station through the base station connecting end.
5. The cellular power distribution network system structure of claim 3, wherein the classification base station (1) comprises a main power base station (4-1) and a backup power base station (4-2), the main power base station is connected with the main power source (1) in the adjacent microgrid topology, and the backup power base station is connected with the backup power source (2) in the adjacent microgrid topology, so that the effect of power classification control between the adjacent microgrids is realized.
6. The cellular power distribution network system structure of claim 1, wherein an intelligent switch for controlling the operation of the microgrid and a carbon processing structure for collecting carbon generated by the power grid are arranged in the classification base station, the carbon processing structure comprises a carbon collection structure and a carbon storage structure, and the carbon collection structure collects the carbon generated by the operation of the power grid and stores the carbon in the carbon storage structure by adopting a pre-combustion collection method, so that the carbon collection structure is convenient for uniform sealing.
7. The cellular power distribution system structure of claim 3, wherein the energy storage module (3) comprises a double-layer energy storage topology, the double-layer energy storage topology is provided with a first energy storage layer and a second energy storage layer, the first energy storage layer is provided with an input end, an output end and a control end, the second energy storage layer is provided with an input end, a delivery end and a control end, and the input end of the first energy storage layer is connected with the delivery end of the second energy storage layer.
8. The cellular power distribution network system structure of claim 7, wherein in the topology of the cellular main network, the control terminal of the first energy storage layer is connected to the classification base station; the input end of the second energy storage layer is connected with the energy storage output end of the main power supply or the standby power supply, the control end of the second energy storage layer is connected with the classification base station, and the connection between the classification base station and the energy storage module realizes the control of the load and storage time.
9. The cellular power distribution network system structure of claim 7, wherein the energy storage module (3) is internally provided with a protection module for transmitting information to the classification base station and disconnecting the input end of the second energy storage layer or the second energy storage layer in time when the energy storage of the first energy storage layer and the second energy storage layer reaches a threshold value.
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| CN202111307695.4A CN114221322A (en) | 2021-11-05 | 2021-11-05 | Honeycomb distribution network system structure |
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