CN111062596A - Distributed generation energy management method based on block chain double-chain structure - Google Patents
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Abstract
The invention discloses a distributed power generation energy management method based on a block chain double-chain structure, which is used for information interaction, electric energy scheduling, expense settlement and the like of a distributed power generation system. The method comprises the following steps: A. constructing a block chain network with a double-chain structure, wherein the double-chain structure consists of a parent chain and a plurality of sub-chains; B. the power supplier and the power demander of each specific area make intelligent contracts in respective sub-chains, and data interaction and power scheduling of the area are carried out; C. each sub-chain is anchored to the parent chain, and the parent chain receives data information periodically sent by each sub-chain and performs hash storage to form a block account book; D. when the distributed power generation systems in all the areas have unbalanced electric energy supply and demand, the transaction information is issued to the parent chain through the sub-chain where the distributed power generation systems are located, and electric power transaction is carried out with other sub-chains through the parent chain. The technical scheme adopted by the invention is a novel block chain technical framework which gives consideration to safety, decentralization and high-performance expansion, can realize high concurrent energy management of distributed energy and transparent data information disclosure, and improves the operating efficiency and the reliability of a distributed power generation system.
Description
Technical Field
The invention belongs to the technical field of power grid management and block chains, and particularly relates to a distributed generation energy management method based on a block chain double-chain structure.
Background
With the development of distributed power generation systems in scale and complex directions, how to construct a safe, fair and flexible energy management system becomes a technical problem to be solved urgently. The block chain has the technical characteristics of decentralized credibility, non-tampering traceability, distributed application and the like, and the network architecture and the technical advantages of the block chain provide a new solution for the safe sharing and fair transaction of distributed power generation in China.
However, the existing distributed power generation energy management technology based on the block chain generally adopts a single chain structure, and supports stable operation of the whole network with a large amount of distributed computing power, and as nodes participating in trading are continuously increased, the decentralized distributed structure is stronger, the operating efficiency and expandability of power dispatching are lower, and the technical problem that power dispatching and electric quantity trading cannot be simultaneously considered exists.
Aiming at the problems in the prior art, the invention provides a distributed power generation energy management method based on a blockchain double-chain structure, which is characterized in that a plurality of sub-chains are used for carrying out power scheduling on a distributed power generation system in each area, and the electric quantity interaction information of each sub-chain is periodically updated and stored on a parent chain, so that cross-area power transaction of each sub-chain is facilitated, the technical problem that a blockchain network with a single-chain structure cannot simultaneously take power scheduling and electric quantity transaction into consideration is solved, and the safety, decentralization and high-performance expansion of the distributed power generation system are improved.
Disclosure of Invention
The invention provides a distributed power generation energy management method based on a blockchain double-chain structure. The invention is used for solving or at least partially solving the technical problem that the safety, decentralization and high-performance expansion of the power block chain cannot be considered at the same time in the prior art.
In order to achieve the above object, the present invention adopts the following technical solutions.
A distributed power generation energy management method based on a block chain double-chain structure comprises the following steps:
A. constructing a block chain network with a double-chain structure, wherein the double-chain structure consists of a parent chain and a plurality of sub-chains;
B. the power supplier and the power demander of each sub-chain area set up an intelligent contract in each sub-chain, and data interaction and power scheduling of the area are carried out;
C. each sub-chain is anchored to the parent chain, and the parent chain receives data information periodically sent by each sub-chain and carries out Hash storage to form a block account book;
D. when the distributed power generation systems in all the areas have unbalanced electric energy supply and demand, the transaction information is issued to the parent chain through the sub-chain where the distributed power generation systems are located, and electric power transaction is carried out with other sub-chains through the parent chain.
In the distributed power generation energy management method based on the block chain double-chain structure, in the step a, when the block chain network with the double-chain structure is constructed, one parent chain is used as a public chain and is opened to all distributed power suppliers and demanders, and each child chain is used as an alliance block chain and is only opened to the distributed power suppliers and demanders in respective areas.
In the distributed power generation energy management method based on the block chain double-chain structure, one parent chain and a plurality of sub-chains constructed in the step a have independent states and complete systems respectively.
In the above distributed power generation energy management method based on the blockchain double-chain structure, the power supplier includes a thermal power plant, a hydraulic power plant, a nuclear power plant, a wind power plant, a distributed wind power generation system, a photovoltaic power plant and a distributed photovoltaic power generation system, and the power demander includes industrial users, commercial users, residents and electricity-selling enterprises.
In the above method for managing distributed power generation energy based on a block chain double-chain structure, the intelligent contract in step B includes:
B1. the power supplier and the power demander of each subchain area formulate an intelligent contract which accords with the power generation and utilization characteristics of the area according to physical composition and boundary conditions, and the contract is built on the subchain area and is visible to all the power suppliers and the power demanders of the subchain area;
B2. and all power suppliers and power demanders in the sub-chain area carry out power scheduling according to the established intelligent contract, scheduling information is updated on the sub-chain in real time, and all the power suppliers and the power demanders in the sub-chain area are visible.
In the distributed power generation energy management method based on the blockchain double-chain structure, each sub-chain in the step B is executed independently and in parallel.
In the distributed power generation energy management method based on the blockchain double-chain structure, in the step C, the parent link receives the electric quantity interaction information periodically sent by each sub-chain, converts the electric quantity interaction information into the data block with the timestamp by using a hash function, and stores the data block in the parent chain, and the real-time power scheduling information on each sub-chain is not sent to the parent chain.
In the distributed power generation energy management method based on the blockchain double-chain structure, the data information of the parent chain in the step C is disclosed for the whole system, and when the internal electric charge is regularly settled, the block data in the parent chain is used as the final certificate.
In the distributed power generation energy management method based on the blockchain double-chain structure, in the step D, each sub-chain performs power transaction on the parent chain according to power supply or demand willingness in each region, so that cross-chain transaction between each sub-chain and cross-region interaction of each distributed electric energy are realized.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the power dispatching and the electric quantity transaction of the distributed power generation system in each area are respectively processed through the blockchain double-link structure, so that the defects that the blockchain single-link structure cannot adapt to the power energy management are overcome, the instantaneous response and the high-performance expansion of the power dispatching are ensured, and the data safety and decentralized autonomous cooperation of the electric quantity transaction are ensured.
(2) According to the difference of geographic positions, flexible and controllable intelligent contracts are constructed on the sub-chains by the distributed power generation systems in the regions, after contract results are uploaded to the sub-chains, the systems automatically execute matching of power supply and demand sides and complete power scheduling, and the operating efficiency of the sub-chain systems is effectively improved.
(3) Each sub-chain packs the electric quantity data into blocks regularly and sends the blocks to the parent chain for Hash storage, other electric power scheduling information is not disclosed to the parent chain, and each distributed power generation system takes the electric quantity information on the parent chain as a transaction settlement basis, so that the safety and the reliability of each distributed power generation system are ensured, and the privacy of each power supplier and demander is also effectively protected.
(4) When the supply and demand of the electric power energy in the distributed power generation area where each sub-chain is located are unbalanced, an electric quantity transaction request can be issued to the parent chain, different sub-chains perform electric power transaction through the parent chain, decentralized autonomous cooperation of distributed power generation systems in different areas is achieved, and supply and demand balance of the whole power network is promoted.
(5) The invention takes a double-chain structure with parallel parent-child chains as a design basis, and solves or at least partially solves the technical problem that the safety, the decentralization and the high-performance expansion of the energy source block chain cannot be considered at the same time in the aspect of distributed generation energy management.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any inventive exercise.
FIG. 1 is a flowchart of a distributed power generation energy management method based on a block chain double-chain structure according to the present invention
FIG. 2 is a schematic diagram of a blockchain dual-link structure provided in the present invention
FIG. 3 is a flowchart of step B of the present invention
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and completely with reference to the following embodiments of the present invention and the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The technical scheme of the invention is explained in detail in the following with the accompanying drawings.
The distributed power generation system adopts an energy management mode of nearby power consumption and coordination and optimization of various energy sources, and connects a power energy supply party and a demand party point to point, so that an internet of things basis of a distributed power energy internet is formed. The double-chain structure network system with parallel parent-child chains is used for respectively carrying out energy scheduling and transaction settlement on the distributed power Internet of things, high concurrency of distributed energy in the aspect of energy management and transparent and non-falsification of data can be realized, and the operation efficiency and the reliability of the distributed power generation system are improved.
As shown in fig. 1, an embodiment of the present application provides a distributed generation energy management method based on a blockchain double-chain structure, which includes the following steps.
A. And constructing a block chain network with a double-chain structure, wherein the double-chain structure consists of a parent chain and a plurality of sub chains.
Specifically, as shown in fig. 2, when a block chain network with a double-chain structure is constructed, one parent chain is used as a public block chain to be butted with each sub-chain, and is open to all power suppliers and consumers in the network; the multiple sub chains are used as alliance block chains to only connect independent distributed power generation systems in each area, and real-time information of internal energy scheduling is only opened to power suppliers and demanders in the sub chain where the sub chains are located, and is not opened to parent chains and other sub chains.
The power supply side comprises a thermal power plant, a hydraulic power plant, a nuclear power plant, a wind power plant, a distributed wind power generation system, a photovoltaic power plant and a distributed photovoltaic power generation system, and the power demand side comprises industrial users, commercial users, residents and electricity selling enterprises.
And each power supplier or demander can be used as a bookkeeper to jointly participate in the consistency confirmation of the energy scheduling information, and can inquire the real-time power scheduling information on the sub chain through an API (application programming interface).
B. The power supplier and the power demander of each sub-chain area establish an intelligent contract in each sub-chain, and perform data exchange and power scheduling in the area.
As shown in fig. 3, the present step mainly includes two aspects: B1. the method comprises the steps that a physical basis of a distributed power generation system is built by power suppliers and power demanders in sub-chain areas, a sub-chain is applied to a network platform where a parent chain is located to build an alliance block chain, factors such as power generation characteristics of the power suppliers, power utilization characteristics of the power demanders, a power grid structure of the area, power matching and the like are comprehensively considered in the alliance block chain, physical boundary conditions and energy scheduling strategies are determined, and the factors are written into an intelligent contract; B2. the electric power supplier and the electric power demand supplier in the sub-chain area select whether to sign an energy scheduling contract according to the self condition, and the evidence storage information of the intelligent contract comprises: the system comprises a node, a server and a server, wherein the node is used for receiving a contract execution state and regional power scheduling information, and the contract execution state and the regional power scheduling information are transmitted to the server.
It should be noted that each sub-chain is executed independently and in parallel, that is, the distributed power generation systems in each area operate independently and do not interfere with each other.
C. And each sub-chain is anchored to the parent chain, and the parent chain receives data information periodically sent by each sub-chain and performs hash storage to form a block account book.
Specifically, the parent chain is used as a leader and a supervisor of the whole network system, receives the electric quantity interaction information periodically sent by each sub-chain, converts the electric quantity interaction information into a data block with a timestamp by using a hash function, and stores the data block in the parent chain.
It should be noted that the time interval of the electric quantity interaction information sent from each child chain to the parent chain may be determined according to actual conditions, and may be varied from 5min to 24 h.
It should be noted that each sub-chain only packs the electric quantity information in the regional distributed system into blocks and sends the blocks to the parent chain for final electric quantity transaction settlement, and the real-time power scheduling information of the power supplier and the power demander in the system is not transmitted to the parent chain.
D. When the distributed power generation systems in all the areas have unbalanced electric energy supply and demand, the transaction information is issued to the parent chain through the sub-chain where the distributed power generation systems are located, and electric power transaction is carried out through the parent chain and other sub-chains through the parent chain.
Specifically, when the generated energy of the distributed power generation system in a certain area is obviously more than the power consumption, the excess information of the power can be transmitted to the parent chain through the sub-chain in which the distributed power generation system is located, and when the generated energy of the distributed power generation system in a certain area is obviously less than the power consumption demand, the shortage information of the power can be transmitted to the parent chain through the sub-chain in which the distributed power generation system is located. Data information in the parent chain is visible in a distributed mode for a full network platform, conditions such as electric quantity supply and demand, expected price and the like can be coordinated among different sub chains, an intelligent contract is generated in the parent chain according to the achieved agreement, electric energy is transferred from an electric power surplus system to an electric power shortage system according to the intelligent contract, and electric quantity statistics and electric charge settlement among corresponding sub chains are carried out through the parent chain.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (7)
1. A distributed power generation energy management method based on a block chain double-chain structure is characterized by comprising the following steps:
A. constructing a block chain network with a double-chain structure, wherein the double-chain structure consists of a parent chain and a plurality of sub-chains;
B. the power supplier and the power demander of the area where each sub-chain is located make intelligent contracts in the respective sub-chain, and data interaction and power scheduling of the area are carried out;
C. each sub-chain is anchored to the parent chain, and the parent chain receives data information periodically sent by each sub-chain and carries out Hash storage to form a block account book;
D. when the distributed power generation systems in all the areas have unbalanced electric energy supply and demand, the transaction information is issued to the parent chain through the sub-chain where the distributed power generation systems are located, and electric power transaction is carried out with other sub-chains through the parent chain.
2. The method according to claim 1, wherein in step a, a parent chain and the plurality of child chains each have an independent status and a complete system.
3. The method according to claim 1, wherein the intelligent contract in step B comprises:
B1. the power supplier and the power demander of each subchain area formulate an intelligent contract which accords with the power generation and utilization characteristics of the area according to physical composition and boundary conditions, and the contract is built on the subchain area and is visible to all the power suppliers and the power demanders of the subchain area;
B2. and all power suppliers and power demanders in the sub-chain area carry out power scheduling according to the established intelligent contract, scheduling information is updated on the sub-chain in real time, and all the power suppliers and the power demanders in the sub-chain area are visible.
4. The method according to claim 3, wherein each sub-chain in step B is executed independently and in parallel.
5. The method according to claim 1, wherein the parent link receives the power interaction information periodically transmitted by each sub-chain, converts the information into the time-stamped data block by using a hash function, and stores the data block in the parent link, and the real-time power scheduling information on each sub-chain is not transmitted to the parent link.
6. The method according to claim 5, wherein the parent chain data information in step C is published to the whole system, and each child chain uses the block data in the parent chain as the final certificate when the internal electricity charge is periodically settled.
7. The distributed power generation energy management method based on the blockchain double-chain structure according to claim 1, wherein in the step D, each sub-chain carries out power transaction on the parent chain according to power supply or demand willingness in each region, and cross-chain transaction between each sub-chain and cross-region interaction of each distributed electric energy are realized.
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| CN113420083A (en) * | 2021-06-02 | 2021-09-21 | 湖南大学 | Heterogeneous parallel block chain structure with expandable distributed account book |
| CN113420083B (en) * | 2021-06-02 | 2024-03-19 | 湖南大学 | System with heterogeneous parallel block chain structure of extensible distributed ledger |
| CN114612017A (en) * | 2022-05-11 | 2022-06-10 | 南京师范大学 | Resource replacement method for distributed energy based on block chain |
| CN115719149A (en) * | 2022-11-25 | 2023-02-28 | 华北电力大学 | Distributed photovoltaic distribution and storage method based on block chain |
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