CN115439255A - Block chain-based trusted transaction method for layered virtual power plant - Google Patents
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Abstract
The invention discloses a block chain-based trusted transaction method for a layered virtual power plant, which relates to the technical field of block chains, and comprises the following steps: generating a block chain internal transaction chain and a block chain external transaction chain; generating a virtual power plant layered transaction framework based on a blockchain technology according to the blockchain internal transaction chain and the blockchain external transaction chain; according to a virtual power plant layered transaction framework based on a block chain technology, receiving transaction information registered by a distributed resource main body, and completing a transaction process of a distributed resource layer of a virtual power plant and a virtual power plant aggregation regulation and control layer; according to a block chain technology-based virtual power plant hierarchical transaction framework, shen Baoliang submitted by a distributed resource main body and a declaration time period are obtained, and a transaction flow of a virtual power plant aggregation regulation and control layer and a virtual power plant external market layer is completed. The method solves the problem of insufficient block chain capacity caused by mass data, and realizes simultaneous transaction inside and outside the virtual power plant.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a block chain-based trusted transaction method for a layered virtual power plant.
Background
The virtual power plant can aggregate various DERs such as distributed power supplies, energy storage equipment and demand side resources and perform coordination control on the DERs in a certain area through an advanced information communication technology, a metering tool and an application software system, and can participate in electric power market construction and transaction as a special power plant. The virtual power plant presents two-stage characteristics, and internally gathers resources and externally participates in the market. Because the various resources polymerized inside belong to different main bodies and are independent of each other; when participating in the market externally, the virtual power plant is also transacted with other independent agents. In order to maintain the long-term stable development of the interior of the virtual power plant, a decentralized, fair and fair trading method is urgently needed.
The block chain technology is a novel application technology in a new state of 'Internet +', and has the main characteristics of decentralization, difficult tampering and distrust. Is often applied to the scenes of distributed energy trading, demand response, electric power market trading and the like. The sharing degree of the alliance chain in the private is higher, and the alliance chain is suitable for an energy transaction scene with large transaction scale, multiple transaction times and attention on privacy protection through a consensus mechanism, asymmetric encryption and a P2P protocol. Therefore, the block chain technology is introduced into the virtual power plant, and the problem of fair and fair trading of the virtual power plant to the inside and the outside can be solved.
Firstly, however, the research on internal and external transactions in a virtual power plant is less in the existing block chain technology, the application of the existing block chain technology is limited to the transactions of a distributed resource layer, but the whole set of internal and external simultaneous transactions of the virtual power plant is rarely involved. Secondly, as the distributed energy sources and market main bodies are numerous, massive data can be formed when the virtual power plant participates in internal and external transactions, and the problem of insufficient capacity of a block chain caused by the massive data needs to be considered. Thirdly, the application of the block chain technology in the transaction of the distributed energy layer is limited to simulation, the problem of pseudo block chain application exists in the current energy transaction demonstration project, and a transaction platform which can be participated in by a bottom distributed resource layer is lacked.
Therefore, on the basis of the existing block chain technology, how to solve the problem of insufficient block chain capacity caused by mass data, realize the simultaneous transaction of the virtual power plant inside and outside, and construct a transaction platform in which a bottom distributed resource layer can participate becomes a problem that needs to be solved urgently by technical staff in the field.
Disclosure of Invention
In view of the above problems, the invention provides a block chain-based trusted transaction method for a layered virtual power plant, which solves at least some of the above technical problems, solves the problem of insufficient block chain capacity caused by massive data, and realizes simultaneous transaction inside and outside the virtual power plant.
The embodiment of the invention provides a block chain-based trusted transaction method for a hierarchical virtual power plant, which comprises the following steps:
respectively constructing a virtual power plant distributed resource layer, a virtual power plant aggregation regulation and control layer and a virtual power plant external market layer, and generating a block chain internal transaction chain and a block chain external transaction chain; generating a virtual power plant hierarchical transaction framework based on a block chain technology according to the block chain internal transaction chain and the block chain external transaction chain;
receiving transaction information registered by a distributed resource main body according to the virtual power plant hierarchical transaction framework based on the block chain technology, and completing a transaction flow of the virtual power plant distributed resource layer and the virtual power plant aggregation regulation and control layer;
and acquiring Shen Baoliang submitted by a distributed resource main body and a declaration time period according to the block chain technology-based virtual power plant hierarchical transaction framework, and completing a transaction process of the virtual power plant aggregation regulation and control layer and the virtual power plant external market layer.
Furthermore, the internal transaction chain of the block chain is formed by the transaction of a virtual power plant distributed resource layer and a virtual power plant aggregation regulation and control layer; the virtual power plant distributed resource layer and the virtual power plant aggregation regulation and control layer inquire and store information through a block chain;
the virtual power plant distributed resource layer comprises a distributed photovoltaic main body, a wind power generation main body, an electric automobile main body, a demand response main body and an energy storage main body;
the virtual power plant polymerization regulation and control layer is mainly controlled by a regulation and control center of a virtual power plant.
Further, the block chain external transaction chain is formed by transaction of a virtual power plant polymerization regulation layer and a virtual power plant external market layer;
and the virtual power plant polymerization regulation and control layer and the virtual power plant external market layer inquire and store information through a block chain.
Further, receiving transaction information registered by the distributed resource main body, and completing a transaction process of the distributed resource layer of the virtual power plant and the aggregation regulation and control layer of the virtual power plant, wherein the transaction process comprises the following steps:
receiving transaction information registered by a distributed resource main body;
generating an auditing result according to the transaction information; generating a distributed resource subject passing the audit according to the audit result; the auditing result comprises the credibility of the distributed resource main body;
acquiring a price set value of the distributed resource main body which passes the examination, and publishing the price set value through an intelligent contract module on a block;
updating the credibility of the distributed resource main body, and storing the credibility on the block again; generating a settlement result; and finishing the transaction flow of the distributed resource layer of the virtual power plant and the aggregation regulation and control layer of the virtual power plant.
Further, the reputation of the distributed resource master is updated by:
in the above formula, the first and second carbon atoms are,
is as followstTime of transaction bodysThe degree of credit of;
is a main bodysFront partt-a reputation total score of 1 transaction;
is a main bodysFirst, thetA reputation score for the secondary transaction;tis the number of transactions.
Further, the settlement result is determined by the following formula:
in the above formula, the first and second carbon atoms are,
is a main bodysThe transaction result of (1);
a preset transaction price;
is a main bodysThe transaction amount of (a);
is a main bodysPenalty cost per unit deviation of (1).
Further, acquiring Shen Baoliang submitted by a distributed resource subject and a declaration time period, and completing a transaction process between the virtual power plant aggregation regulation and control layer and the virtual power plant external market layer, including:
acquiring the declaration amount and the declaration time period submitted by a distributed resource main body; obtaining the clearing price of each time period by adopting a marginal clearing method;
generating a settlement result of the virtual power plant according to the clearing price of each time interval; and finishing the transaction flow of the virtual power plant polymerization regulation and control layer and the virtual power plant external market layer.
Further, calculating a settlement result of the virtual power plant by the following formula:
in the above formula, the first and second carbon atoms are,
the result is the settlement result of the virtual power plant;
clearing price for each stage;
the actual clear volume is discharged;
to request the amount of the supernatant;
penalizes the cost for the unit output clearance deviation.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the embodiment of the invention provides a block chain-based trusted transaction method for a layered virtual power plant, which comprises the following steps: respectively constructing a virtual power plant distributed resource layer, a virtual power plant aggregation regulation and control layer and a virtual power plant external market layer, and generating a block chain internal transaction chain and a block chain external transaction chain; generating a virtual power plant layered transaction framework based on a blockchain technology according to the blockchain internal transaction chain and the blockchain external transaction chain; according to a virtual power plant layered transaction framework based on a block chain technology, receiving transaction information registered by a distributed resource main body, and completing a transaction process of a distributed resource layer of a virtual power plant and a virtual power plant aggregation regulation and control layer; according to a block chain technology-based virtual power plant hierarchical transaction framework, shen Baoliang submitted by a distributed resource main body and a declaration time period are obtained, and a transaction process of a virtual power plant aggregation regulation and control layer and a virtual power plant external market layer is completed. The method solves the problem of insufficient block chain capacity caused by mass data, and realizes simultaneous transaction inside and outside the virtual power plant.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a block chain-based trusted transaction method for a layered virtual power plant according to an embodiment of the present invention;
FIG. 2 is a block chain technology-based virtual power plant hierarchical transaction framework diagram provided by an embodiment of the present invention;
fig. 3 is a block chain internal transaction chain framework diagram of a distributed resource layer and an aggregation regulation layer according to an embodiment of the present invention;
fig. 4 is a transaction flow chart of a distributed resource layer and an aggregation regulation layer according to an embodiment of the present invention;
fig. 5 is a block chain internal transaction chain framework diagram of the aggregate regulation layer and the external market layer according to an embodiment of the present invention;
fig. 6 is a transaction flow chart of the aggregate regulation layer and the external market layer according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the invention provides a block chain-based trusted transaction method for a layered virtual power plant, which is shown in figure 1 and comprises the following steps:
respectively constructing a virtual power plant distributed resource layer, a virtual power plant aggregation regulation and control layer and a virtual power plant external market layer, and generating a block chain internal transaction chain and a block chain external transaction chain; generating a virtual power plant hierarchical transaction framework based on a blockchain technology according to the blockchain internal transaction chain and the blockchain external transaction chain;
according to a virtual power plant layered transaction framework based on a block chain technology, receiving transaction information registered by a distributed resource main body, and completing a transaction process of a distributed resource layer of a virtual power plant and a virtual power plant aggregation regulation and control layer;
according to a block chain technology-based virtual power plant hierarchical transaction framework, shen Baoliang submitted by a distributed resource main body and a declaration time period are obtained, and a transaction flow of a virtual power plant aggregation regulation and control layer and a virtual power plant external market layer is completed.
The process is described in detail below:
the method comprises the following steps of (1) designing a virtual power plant hierarchical transaction framework based on a block chain technology:
referring to fig. 2, the virtual power plant hierarchical transaction framework based on the blockchain technology is divided into an internal transaction chain of the blockchain and an external transaction chain of the blockchain.
And an internal transaction chain of the block chain is the transaction of the distributed resource layer and the aggregation regulation and control layer of the virtual power plant. The distributed resource layer comprises distributed photovoltaic, wind power generation, electric vehicles, demand response, energy storage and other main bodies. The polymerization regulation and control layer mainly takes the regulation and control center of a virtual power plant as a leading factor. The distributed resource layer and the aggregation regulation and control layer inquire and store information through the block chain, and therefore internal transactions are completed and resource aggregation is achieved.
And an external transaction chain of the block chain is a transaction between the virtual power plant polymerization regulation layer and the external market layer. The transaction body of the external market layer includes other virtual power plants, remaining power suppliers, power demanders, and the like. The virtual power plant aggregation regulation and control layer and the external market layer inquire and store information through a block chain, and therefore external transactions in the electric energy market and the peak regulation auxiliary service market are completed.
Trade design of a distributed resource layer and an aggregation regulation and control layer:
referring to fig. 3, a block chain internal transaction chain framework of a distributed resource layer and an aggregation regulation layer is shown. As can be seen from the transaction of FIG. 3, the front-end module includes a registration module and an approval module. Before the distributed resource layer participates in the virtual power plant aggregation, relevant information needs to be submitted through a registration module; and the approval module is used for auditing the registration information submitted by the distributed resource layer for the virtual power plant aggregation control center. The related registration information and the audit information are stored in the block. Meanwhile, an intelligent contract module is further arranged in the block chain, the intelligent contract comprises contents such as transaction prices, transaction scales, transaction execution and the like of the distributed resource layer main body and the virtual power plant regulation and control center, and related transaction information is stored in the block (an element of the block chain) for the queryability of the transaction information. Meanwhile, in order to ensure the authenticity and credibility of both transaction parties, the transaction is also carried out on a block.
Referring to fig. 4, a transaction flow of the distributed resource layer and the aggregation regulation layer includes:
(1) The distributed resource main body is registered according to the actual situation of the distributed resource main body, and the method comprises the following steps: name, mailbox, user role, user name and password; wind and light and other power generators need to submit installation scale; specific geographical position of the power plant, historical output curve; the energy storage businessman needs to submit installation capacity, historical charging and discharging energy curves and the like; the electric automobile body submits a charging curve, a driving mileage and other related parameters; the demand response agent then submits a maximum size, a response time period, etc. that can be responded to.
(2) And (5) auditing by the virtual power plant operator. For a new subject, it is mainly checked whether the scale amount can reach the basic standard, specifically as shown in formula (1), in addition, the new subject such as wind and light also needs to evaluate the output peak-valley difference, if the peak-valley difference exceeds a certain standard upper limit, the check is not passed, specifically as shown in formula (2). For the old main body, whether the settlement stage can perform settlement according to contract requirements is mainly evaluated, the credibility is adopted for evaluation, and the calculation of the credibility is specifically shown as a formula (3); if the reputation value is lower than a certain value, the reputation evaluation of the old subject fails, specifically as shown in equation (4). And submitting the auditing results of the main bodies to a storage area by the virtual power plant operator so as to be inquired by the distributed resource layer main body and the virtual power plant operator.
In the formula:
is as followssClass resource subject registration specification;
is as followssRegistering a lower limit of scale quantity by a class resource main body;
、
the peak-to-valley difference between wind power generation and photovoltaic power generation;
、
the upper limit value of the peak-valley difference between wind power generation and photovoltaic power generation;
is as followstTime of transaction bodysThe degree of credit of;
is a main bodysFront partt-a reputation total score of 1 transaction;
is a main bodysFirst, thetA reputation score for the secondary transaction;tis the transaction number;
is the lowest standard of credibility.
(3) And the virtual power plant operator transacts with the distributed resource subject passing the audit. The virtual power plant makes price formulation (price setting) for each type of resource main body according to the registration information submitted by the distributed resource main bodies, and publishes an intelligent contract module of which the price is formulated on a block. And various resource main bodies submit the transaction scale according to the price set by the virtual power plant operator and submit the transaction scale to the block.
(4) And the virtual power plant operator and the distributed resource subject passing the audit enter a transaction execution and transaction settlement stage. And analyzing whether each distributed resource main body carries out transaction according to the submitted transaction scale, if so, marking as 1, otherwise, marking as 0, writing the credit degree of each main body into the block, updating the credit degree of each main body according to the formula (3), and storing the credit degree again on the block. The settlement result is determined according to the actual transaction scale of each main body of the distributed resources and the formula (5), and the settlement result is also stored on the block.
In the formula:
is a main bodysThe transaction result of (1);
for virtual plant operators as distributed resource hostssThe established transaction price;
is a main bodysThe transaction amount of (a);
is a main bodysPenalty cost per unit deviation.
And (3) transaction design of the aggregation regulation and control layer and an external market layer:
referring to fig. 5, a blockchain external transaction chain framework for aggregating regulation and control layers and external market layers is shown. As can be seen from fig. 5, the front-end module includes a reporting module and an information publishing module, and the reporting module is mainly a time period for the virtual power plant operator to submit the reporting amount and report before the market transaction. The information publishing module is used for the market operation center to put forward the clearing price and the clearing amount of each main body according to the declaration amount and the market demand of each main body in the market. The data of the declaration module and the information publishing module are stored in the block. Meanwhile, an intelligent contract module is further arranged in the block chain, the intelligent contract comprises the contents of the transaction price, the transaction scale, the transaction execution and the like of the virtual power plant regulation and control center in the market, and related transaction information is stored in the blocks for the queryability of the transaction information. Meanwhile, in order to ensure the authenticity and credibility of both transaction parties, the transaction is also carried out on a block.
Referring to fig. 6, a transaction flow between the aggregation regulation layer and the external market layer includes:
(1) And a request and application stage. The information publishing module of the market operation main body on the block publishes market demands, the virtual power plant operation main body calls the intelligent contract to inquire the scale capable of being declared, the declaration module submits declaration amount, and the market demands and the declaration amount are stored on the block respectively.
(2) And (4) a discharging stage. The market operation body obtains the clearing price of each time period by adopting a marginal clearing method according to Shen Baoliang submitted by each body and the declaration time period, and the clearing price is published and stored in the information publishing module.
(3) And (5) settlement stage. The virtual power plant inquires the clearing price in the information disclosure module, the market operation main body settles accounts of the virtual power plant according to the actual clearing amount and the required clearing amount of the virtual power plant, the settlement rule is carried out according to the formula (6), and the settlement result is also stored in the block.
In the formula:
the result is the settlement result of the virtual power plant;
the price is the clearing price;
the actual clear volume is discharged;
to request the amount of the supernatant;
penalizes the cost for the unit output clearance deviation.
According to the block chain-based hierarchical virtual power plant credible transaction method provided by the embodiment, the problem of insufficient block chain capacity caused by mass data is solved through a hierarchical transaction structure; a specific flow and mechanism of transaction of a block chain technology inside and outside a virtual power plant are provided; a trading platform in which the underlying distributed resource layer can participate is constructed. The problem of block chain capacity shortage caused by mass data is solved, simultaneous transaction inside and outside a virtual power plant is achieved, and a transaction platform capable of being participated in by a bottom distributed resource layer is established.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A block chain-based layered virtual power plant credible transaction method is characterized by comprising the following steps:
respectively constructing a virtual power plant distributed resource layer, a virtual power plant aggregation regulation and control layer and a virtual power plant external market layer, and generating a block chain internal transaction chain and a block chain external transaction chain; generating a virtual power plant hierarchical transaction framework based on a block chain technology according to the block chain internal transaction chain and the block chain external transaction chain;
receiving transaction information registered by a distributed resource main body according to the virtual power plant hierarchical transaction framework based on the block chain technology, and completing a transaction flow of the virtual power plant distributed resource layer and the virtual power plant aggregation regulation and control layer;
and acquiring Shen Baoliang submitted by a distributed resource main body and a declaration time period according to the block chain technology-based virtual power plant hierarchical transaction framework, and completing a transaction process of the virtual power plant aggregation regulation and control layer and the virtual power plant external market layer.
2. The block chain-based layered virtual power plant credible transaction method of claim 1, wherein the block chain internal transaction chain is formed by transactions of a virtual power plant distributed resource layer and a virtual power plant aggregate regulation layer; the virtual power plant distributed resource layer and the virtual power plant aggregation regulation and control layer inquire and store information through a block chain;
the virtual power plant distributed resource layer comprises a distributed photovoltaic main body, a wind power generation main body, an electric automobile main body, a demand response main body and an energy storage main body;
the virtual power plant polymerization regulation and control layer is mainly controlled by a regulation and control center of a virtual power plant.
3. The block chain-based layered virtual power plant credible transaction method of claim 1, wherein the block chain external transaction chain is composed of transactions of a virtual power plant aggregate regulation layer and a virtual power plant external market layer;
and the virtual power plant polymerization regulation and control layer and the virtual power plant external market layer inquire and store information through a block chain.
4. The block chain-based layered virtual power plant credible transaction method of claim 1, wherein receiving transaction information registered by a distributed resource main body, completing a transaction flow of the virtual power plant distributed resource layer and the virtual power plant aggregate regulation layer comprises:
receiving transaction information registered by a distributed resource main body;
generating an auditing result according to the transaction information; generating a distributed resource subject passing the audit according to the audit result; the auditing result comprises the credibility of the distributed resource main body;
acquiring a price set value of the distributed resource main body which passes the examination, and publishing the price set value through an intelligent contract module on a block;
updating the credibility of the distributed resource main body, and storing the credibility on the block again; generating a settlement result; and finishing the transaction flow of the distributed resource layer of the virtual power plant and the aggregation regulation and control layer of the virtual power plant.
5. The block chain-based hierarchical virtual power plant trusted transaction method according to claim 4, wherein the credibility of the distributed resource subject is updated by the following formula:
in the above formula, the first and second carbon atoms are,
is as followstTime of transaction bodysThe degree of reputation;
is a main bodysFront sidet-a reputation total score of 1 transaction;
is a main bodysFirst, thetA reputation score for the secondary transaction;tis the number of transactions.
6. The block chain based hierarchical virtual plant trusted transaction method according to claim 4, wherein the settlement result is determined by the following formula:
in the above formula, the first and second carbon atoms are,
is a main bodysThe transaction result of (1);
a preset transaction price;
is a main bodysThe transaction amount of (a);
is a main bodysPenalty cost per unit deviation of (1).
7. The block chain-based layered virtual power plant credible transaction method of claim 1, wherein the steps of obtaining Shen Baoliang submitted by a distributed resource subject and a declaration time period, and completing a transaction flow between the virtual power plant aggregation regulation layer and the virtual power plant external market layer comprise:
acquiring the declaration amount and the declaration time period submitted by a distributed resource main body; obtaining the clearing price of each time period by adopting a marginal clearing method;
generating a settlement result of the virtual power plant according to the clearing price of each time interval; and finishing the transaction flow of the virtual power plant polymerization regulation and control layer and the virtual power plant external market layer.
8. The block chain-based hierarchical virtual power plant credible transaction method of claim 7, wherein the settlement result of the virtual power plant is calculated by the following formula:
in the above-mentioned formula, the compound has the following structure,
the result is the settlement result of the virtual power plant;
clearing price for each stage;
the actual clear volume is discharged;
to request the amount of the supernatant;
penalizes the cost for the unit output clearance deviation.
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