CN115719149A - Distributed photovoltaic distribution and storage method based on block chain - Google Patents
Distributed photovoltaic distribution and storage method based on block chain Download PDFInfo
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Abstract
The invention relates to a distributed photovoltaic distribution and storage method based on a block chain, which comprises the following steps: constructing a distributed photovoltaic energy storage configuration block chain architecture, and performing block chain winding and storage on user data; establishing a distribution and storage demand degree evaluation mechanism based on the user data to acquire the distribution and storage demand degree of the user; and triggering an intelligent contract to generate a distribution and storage scheme and a distribution and storage equity grade based on the distribution and storage demand degree of the user, and selecting the distribution and storage scheme by the user to distribute and install the energy storage device. The invention establishes a public and transparent distributed photovoltaic distribution and storage method by using the block chain, takes real user data as an evaluation standard, preferentially provides the shortage of energy storage batteries to users with high distribution and storage requirements, greatly improves the fairness of the distribution and storage process, reduces the resource waste caused by improper competition, and contributes to accelerating the construction of the distributed photovoltaic reasonable distribution and storage and realizing the aim of 'double carbon'.
Description
Technical Field
The invention relates to the technical field of distributed photovoltaics, in particular to a distributed photovoltaic distribution and storage method based on a block chain.
Background
The continuous rising electricity price in recent years has pushed users to rapidly develop stored energy in partial countries and regions, and according to the german BVES report data, by the end of 2021, the total energy storage sales of german users are 43 ten thousand, 14.5 ten thousand are newly added, and by 45% of the same time. For countries and regions such as south africa, local power grid facilities are relatively weak or face natural disaster threats from time to time, and the demand of energy storage and power supply reliability improvement for users configured in relatively rich families is urgent.
At the present stage, the photovoltaic industry in China accelerates the structural adjustment, and the distributed distribution and storage obtains more attention. According to the data released by the national energy agency, the newly increased photovoltaic installation of about 5300 ten thousand kilowatts in 2021 years is realized, and the distributed photovoltaic proportion reaches 55%. The development trend of the current photovoltaic centralized type and distributed type is obvious, the scale growth of the latter can continuously push the energy storage requirement, the reasonable acceleration of the 'distributed type + photovoltaic' configuration is urgent, most of the existing built distributed photovoltaic devices lack matched energy storage devices, and the light abandoning phenomenon is obvious. Along with the price rise of the supply chain of the photovoltaic industry, the distribution and storage cost of a user is high, the cost recovery period is long, and the distribution and storage willingness of the user is not strong.
The existing photovoltaic distribution and storage method is high in cost, and many photovoltaic projects have large uncertainty on the degree of energy storage requirement, so that resource waste and invalid distribution and storage can be caused; and the method is lack of systematic theoretical guidance, energy storage construction is carried out only according to hard index regulation and estimated distribution and storage scale, the actual significance of optical storage construction is neglected, and serious resource waste is caused in the environment that the original scarce energy storage battery cannot be put into effective utilization at the first time. The current photovoltaic construction has the adverse phenomena of forced storage allocation, increased price of an energy storage battery and the like, so that serious economic loss is caused, and the forward pace of the light storage integrated construction in China is hindered.
Based on the above, a more reasonable and efficient distributed photovoltaic distribution and storage method is needed to be provided, distribution and storage of users with higher actual requirements are preferentially met, the distribution and storage scale and the energy storage type are evaluated and guided, the actual efficacy of the energy storage device after distribution and storage is improved, meanwhile, the user opinion is respected, and the system coordination capacity is improved. For the specific photovoltaic matched energy storage construction method, multiple flexible modes such as self-construction, cooperative co-construction or lease and the like can be selected, the distributed energy storage construction overall planning which accords with the actual conditions of all regions is promoted, and the phenomena of tail rot of investment, invalid distribution and storage and the like are strictly prevented.
Disclosure of Invention
Aiming at the defects of the prior art, the invention introduces a block chain technology to realize the public chaining of the distributed photovoltaic power generation and utilization data and the utilization information of the non-energy-storage users, and makes the evaluation of the allocation and storage demand degree according to the recent user data. The user data is stored and analyzed by means of powerful data storage and source tracing functions of a block chain, a fair, public and efficient distributed photovoltaic distribution and storage method for bidirectional selection between a user and an energy storage service provider is provided, the method improves the utilization rate of an energy storage battery, shortens the recovery period of energy storage cost, and promotes efficient promotion of light storage integrated construction; meanwhile, according to the actual situation of the user, a more detailed distribution and storage scheme is provided for the user to select, so that the autonomous selectivity, the applicability and the participation sense of the user in selecting and increasing the distribution and storage energy are improved practically, and the healthy development of light storage integration is facilitated.
In order to achieve the purpose, the invention provides the following scheme:
a distributed photovoltaic distribution and storage method based on a block chain comprises the following steps:
constructing a distributed photovoltaic energy storage configuration block chain architecture, and performing block chain winding and storage on user data;
establishing a distribution and storage demand degree evaluation mechanism based on the user data to acquire the distribution and storage demand degree of the user;
and triggering an intelligent contract to generate a distribution and storage scheme and a distribution and storage interest grade based on the distribution and storage demand degree of the user, and selecting the distribution and storage scheme by the user to distribute and install the energy storage device.
Further, constructing the distributed photovoltaic energy storage configuration blockchain architecture comprises:
introducing a block chain technology into a distributed photovoltaic system, selecting an alliance chain, integrating distributed photovoltaic users and energy storage service providers into a unified block chain system for planning, and constructing a distributed photovoltaic energy storage configuration block chain architecture, wherein the distributed photovoltaic energy storage configuration block chain architecture comprises a user chain, a service provider chain and a monitoring party.
Further, the user data includes: personal basic information, geographic location, electricity usage data, photovoltaic generation and electricity usage data, photovoltaic power generation equipment parameters, and acceptable energy storage device price ranges for distributed photovoltaic users lacking energy storage devices.
Further, establishing the allocation and storage demand degree evaluation mechanism comprises:
selecting a data evaluation period T of the blockchain system based on the electricity utilization data and the photovoltaic power generation and utilization data of the user 0 Calculating the distribution and storage demand degree of the user, wherein the data evaluation period T 0 The dynamic timeliness is realized, and the allocation and storage demand degree of the user is evaluated according to the data evaluation period T 0 And (6) updating.
Further, the method for calculating the distribution and storage demand degree of the user comprises the following steps:
wherein the content of the first and second substances,
for the degree of demand, θ, of allocation or storage of a user node i i Is the time deviation coefficient of the peak of electricity utilization and the peak of photovoltaic power generation, beta i Is T 0 Average electricity price, eta, of electricity purchased by the user during the day i For the generation of the power-consumption proportionality coefficient of the photovoltaic installation, c G,i Is the variation coefficient of the daily power generation of the photovoltaic.
Further, triggering an intelligent contract to generate a distribution and storage scheme based on the distribution and storage demand degree of the user comprises:
and after the distribution and storage demand degrees of all user nodes in a preset period are obtained, triggering the intelligent contract to calculate, and obtaining a plurality of distribution and storage schemes suitable for the user and the distribution and storage equity grade of the user in each distribution and storage scheme, wherein the intelligent contract comprises a price matching function, a distribution and storage demand degree sorting function, a distribution and storage equity grade function and a distribution and storage installation time estimation function.
Further, the allocation equity level function includes: dividing the storage allocation right and interest levels of the users into three levels of A, B, C, and when a scheme group of the configurable energy storage device w has j users and a user i is named as q, the storage allocation right and interest levels of the user i in the scheme group are as follows:
the specific values of the boundary values s and v are proposed by a supervisor and are determined by the joint passing of the members of the alliance chain.
Further, the storage and distribution installation time prediction function comprises: estimating the allocation and storage installation time t to be waited by the user i selection scheme through the allocation and storage right and interest level of the user, the supply plan of the energy storage device and the geographical positions of the user and the service provider w,i ：
Wherein e is a coefficient determined according to the user allocation right and interest level, the coefficient corresponding to the level A is the minimum, the coefficient corresponding to the level C is the maximum, and the specific numerical value is determined by the members of the alliance chain together; u shape w The number of such energy storage devices can be provided for the next evaluation period of the storage demand for the service provider of energy storage device w, x is a delivery target determined according to the geographical position of the user and the service providerA time reference coefficient.
Further, the user selects the distribution and storage scheme, and the distribution and installation of the energy storage device comprises: and after the user selects the distribution and storage scheme, the supervisor checks the information of the user and the selected distribution and storage scheme, after the checking, the user and a service provider chain of the selected distribution and storage scheme get contact to carry out the installation work of the energy storage device, and the service provider periodically submits the progress information of the installation work of the energy storage device to a block chain system to complete the installation of the energy storage device and sign a distribution and storage related protocol.
The invention has the beneficial effects that:
(1) According to the invention, the block chain technology is introduced into the distributed photovoltaic distribution and storage, the distribution and storage demand degree of the distributed user data which is lack of distribution and storage is evaluated, the distribution and storage scheme which can be selected by the user is automatically obtained by using an intelligent contract, the user and the service provider can perform online real-time interaction through the block chain, the selection range of the distribution and storage of the user is expanded, the cost is reduced, the distribution and storage volume polarity of the user and the utilization rate of the energy storage battery are favorably improved, and the light and storage integrated construction is promoted.
(2) The invention utilizes the transparency and non-tamper property of the block chain to collect, store and analyze the data of the whole distribution and storage process, and establishes a public and transparent distributed photovoltaic distribution and storage method. The real user data is used as an evaluation standard, the shortage of energy storage batteries is preferentially provided for users with high distribution and storage requirements, the fairness of the distribution and storage process is greatly improved, the resource waste caused by improper competition is reduced, and the method contributes to accelerating the construction of distributed photovoltaic reasonable distribution and storage and realizing the double-carbon target.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a block chain architecture diagram of a distributed photovoltaic energy storage configuration according to an embodiment of the present invention;
FIG. 2 is a flow diagram of intelligent contract execution according to an embodiment of the present invention;
fig. 3 is a flow chart of distributed photovoltaic power distribution and storage according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The embodiment provides a distributed photovoltaic distribution and storage method based on a block chain, which comprises the following steps:
constructing a distributed photovoltaic energy storage configuration block chain architecture, and performing block chain winding and storage on user data; establishing a distribution and storage demand degree evaluation mechanism based on user data to acquire the distribution and storage demand degree of a user; and triggering an intelligent contract to generate a distribution and storage scheme and a distribution and storage equity grade based on the distribution and storage demand degree of the user, and selecting the distribution and storage scheme by the user to distribute and install the energy storage device.
A complete distributed photovoltaic distribution and storage flow chart is shown in fig. 3, and the specific flow is as follows:
step1: the block chain technology is introduced into a distributed photovoltaic system, distributed photovoltaic users and energy storage service providers are integrated into a unified block chain system for overall planning, and a distributed photovoltaic energy storage configuration block chain architecture which is flexible, efficient and high in consensus degree is constructed by selecting alliance chains, as shown in fig. 1, and comprises a user chain, a service provider chain and a monitoring party.
The method comprises the steps that users who install distributed photovoltaics and are willing to allocate and store and service providers who sell energy storage devices form sub-alliance chains respectively, and when the users join a block chain, the users need to provide information such as personal basic information, geographic positions, electricity utilization data, photovoltaic power generation and utilization data, photovoltaic power generation equipment parameters and acceptable price ranges of the energy storage devices to a supervisor. The method comprises the steps that a supervisor uploads information to a block chain after manual inspection and gives a service provider chain the authority of accessing information of a user node, if the allocation and storage desire of the user changes, the user can access the block chain at any time to check the information of the user and initiate a modification request, and if the user removes photovoltaic equipment or loses the initiative allocation and storage desire, the supervisor can submit a request for eliminating the node. After a user joins the block chain, the user node data and the block chain system keep real-time intercommunication, and the block chain system carries out authenticity detection on the uplink data, so that the authenticity and reliability of the data uploaded by the user are ensured.
Step2: establishing a distribution and storage demand evaluation mechanism, after a user joins a block chain, synchronously uploading power utilization data and photovoltaic power generation and utilization data of a user node and the like to the block chain, storing all data in the system in a block chain data storage information management platform by T 0 A data evaluation period T of the system 0 The dynamic timeliness is achieved, the block chain monitoring party is used for setting uniformly, and calculation and timely updating of the distribution and storage demand degree of the user are completed.
Before calculating the distribution and storage demand, firstly, the authenticity of data is ensured, during data chaining, the normal index range of each item of data is determined according to the basic information of a user, each item of data is within the normal index range, otherwise, the data cannot be subjected to the data chaining, for example, the daily power generation time of the photovoltaic equipment in the northeast region of the user data is 15 hours, and the data deviates from the normal index range. If the data abnormal condition exists in the evaluation period, the data abnormal condition indicates that a fake behavior possibly exists, and the evaluation opportunity of the allocation and storage demand degree and the allocation and storage qualification in the evaluation period of the user node are cancelled.
Specifically, the allocation and storage demand degree of a user is calculated and comprehensively evaluated according to a plurality of indexes, and the calculation method comprises the following steps:
wherein the content of the first and second substances,
for the degree of demand, θ, of allocation or storage of a user node i i Is the time deviation coefficient, beta, of the peak of electricity utilization and the peak of photovoltaic power generation i Is T 0 Average electricity price, eta, of electricity purchased by the user during the day i For the generation of the power-consumption proportionality coefficient of the photovoltaic installation, c G,i Is the variation coefficient of the daily power generation of the photovoltaic.
Time deviation coefficient theta of power utilization peak and photovoltaic power generation peak i The contribution degree of the photovoltaic equipment to the electricity consumption of the user under the condition of no distribution and storage can be roughly measured, and the larger the interval between the peak time of the electricity consumption and the peak time of photovoltaic power generation is, the larger the theta i The larger the value of (theta), the smaller the contribution of the photovoltaic equipment to the electricity utilization of the user under the condition of no distribution and storage, the higher the demand on the energy storage device is, the utilization rate of the peak power generation amount of the photovoltaic power generation can be improved by timely distribution and storage, and the theta i The calculation formula of (2) is as follows:
wherein, t D,k For the kth day user at peak time, t G,k And obtaining the electricity utilization data uploaded by the user nodes every day at the electricity generation peak time of the kth solar photovoltaic equipment.
T 0 Average price beta of electricity purchased by the user in the day i The high electricity price will improve the distribution and storage willingness of the user, so the average electricity price is used as a parameter for evaluating the distribution and storage demand degree, and the calculation formula is as follows:
wherein M is T 0 The electricity charge in the day is carried out,
is T 0 The amount of power consumed from the grid during the day.
Power generation and utilization proportionality coefficient eta of photovoltaic equipment i Embodies the photovoltaic power generation absorption level eta i The smaller the current consumption level is, the more energy storage devices are needed to increase the utilization rate of photovoltaic power generation, eta i The calculation formula of (2) is as follows:
wherein the content of the first and second substances,
and
are respectively T 0 The total electric quantity and the total photovoltaic power generation quantity of photovoltaic power generation utilized by users in the day.
Coefficient of variation c of photovoltaic daily generated energy G,i The relative size of data change obtained based on the standard deviation reflects the daily generated energy change condition of the user influenced by external conditions, and if photovoltaic power generation is unstable, an energy storage device needs to be configured to ensure the stable power utilization of the user. Coefficient of variation c for larger daily power generation variation G,i The larger the demand for energy storage devices. c. C G,i The calculation formula of (c) is:
wherein E i,k Is the power generation of the photovoltaic device on the k-th day,
for photovoltaic installations T 0 The daily average power generation amount.
Step3: and after the distribution and storage demand degrees of all the user nodes in the evaluation period are obtained, the block chain discloses distribution and storage demand degree data to all the nodes. Meanwhile, the service provider node discloses supply plan information of various energy storage devices operated by the service provider node, and submits the supply plan information to the supervisor for authenticity verification. And calculating the data checked by the supervisor through an intelligent contract to automatically obtain a plurality of allocation and storage schemes suitable for the user and allocation and storage interest levels of the user in each allocation and storage scheme.
The intelligent contract execution flow is shown in fig. 2, and the specific method for generating the distribution and storage scheme according to the intelligent contract is as follows:
step3.1: and triggering the intelligent contract after the data of all the user nodes in an evaluation period is uploaded, wherein the main data passing through the intelligent contract comprises user geographic position information, an energy storage configuration price range acceptable by the user, the allocation and storage demand degree of the user, various energy storage device production plan information of the service provider node, quotations of various energy storage devices, service provider geographic position information and the like.
Step3.2: the method comprises the steps of calculating in an intelligent contract to obtain various storage schemes suitable for users, wherein the intelligent contract mainly comprises a price matching function, a distribution and storage demand degree sequencing function, a distribution and storage interest level function and a distribution and storage installation time estimation function.
Price matching function: and comparing the price range of the energy storage device acceptable by the user with the energy storage device quotation of the service provider node, determining the storage allocation schemes selectable by the user and grouping according to the schemes, wherein the user who can select the same type of energy storage device can determine the storage allocation equity grade for configuring the type of energy storage device according to the storage allocation demand degree.
A distribution and storage demand degree sorting function: and sorting the allocation and storage demand degrees of the users in each group according to the value of the allocation and storage demand degrees from high to low.
Storage allocation equity level function: the user allocation and storage right and interest level is divided into three levels of A, B, C, and support is provided for calculation of the allocation and storage installation time function.
When a scheme group capable of configuring a certain energy storage device w has j users, and the rank of the user i is q, the allocation and storage right and benefit level of the user i in the scheme group is as follows:
the specific values of the boundary values s and v are proposed by a supervisor and are determined by the members of the alliance chain.
Estimating the allocation and storage installation time t to be waited for when the user selects the scheme through the allocation and storage right and interest level of the user, the supply plan of the energy storage device and the geographical positions of the user and the service provider by the allocation and storage installation time estimation function w,i ：
Wherein e is a coefficient determined according to the user allocation right and interest level, the coefficient corresponding to the level A is the minimum, the coefficient corresponding to the level C is the maximum, and the specific numerical value is determined by the members of the alliance chain together; u shape w The number of such energy storage devices may be provided by the service provider for energy storage device w in the next period of evaluation of the demand for distribution, and x is a distribution criterion time coefficient determined according to the geographical location of the user and the service provider.
Step3.3: after the intelligent contract is automatically executed to obtain the allocation and storage scheme corresponding to each user, the corresponding service provider can add introduction to the energy storage device and optional allocation and storage modes, namely detailed cost descriptions of different allocation and storage modes such as self-construction, cooperative co-construction or lease and the like, in the scheme, and the user can access the block chain to check the allocation and storage scheme of the user and make a selection according to the need of the user.
Step4: after the user selects the distribution and storage scheme, the user information and the selected scheme are submitted to a supervisor for auditing, the user node and the service provider node are respectively notified after the auditing is passed, in order to protect the privacy and the commercial confidentiality of the members of the block chain, the detailed information of the other party cannot be obtained before the user determines the distribution and storage scheme, the supervisor determines that the two parties will obtain the contact way of the other party after the distribution and storage application is valid, and the installation work of the online and offline synchronous energy storage device is carried out. And the service provider is responsible for submitting the progress information of the distribution and storage work to the blockchain system periodically, so that the real-time performance and the fairness of the blockchain system are ensured until the energy storage device is installed and signs a distribution and storage related protocol. All data in the distribution and storage process are stored in the block chain data evidence information management platform and are used as evidence obtaining data for long-term storage.
According to the method, the block chain technology is applied to the distributed photovoltaic distribution and storage scene, and the problem that a plurality of users are difficult to plan comprehensively is solved. The alliance chain is established, all users enjoy equal rights and interests, the storage and distribution process is guaranteed to be fair and transparent, a data sharing environment with certain trust is created for the users and the service providers, the users and the service providers perform fair and timely bidirectional selection by means of the block chain, the efficiency of the process of selecting the storage and distribution scheme by the users is improved, the marketing cost of the service providers is reduced, and the shortage of energy storage batteries is favorably put into a proper working environment to play a role as soon as possible.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. A distributed photovoltaic distribution and storage method based on a block chain is characterized by comprising the following steps:
constructing a distributed photovoltaic energy storage configuration block chain architecture, and performing block chain winding and storage on user data;
establishing a distribution and storage demand degree evaluation mechanism based on the user data, and acquiring the distribution and storage demand degree of the user;
and triggering an intelligent contract to generate a distribution and storage scheme and a distribution and storage equity grade based on the distribution and storage demand degree of the user, and selecting the distribution and storage scheme by the user to distribute and install the energy storage device.
2. The blockchain-based distributed photovoltaic distribution and storage method according to claim 1, wherein constructing the distributed photovoltaic energy storage configuration blockchain architecture comprises:
introducing a block chain technology into a distributed photovoltaic system, selecting an alliance chain, integrating distributed photovoltaic users and energy storage service providers into a unified block chain system for planning, and constructing a distributed photovoltaic energy storage configuration block chain architecture, wherein the distributed photovoltaic energy storage configuration block chain architecture comprises a user chain, a service provider chain and a monitoring party.
3. The block chain-based distributed photovoltaic distribution and storage method according to claim 1, wherein the user data comprises: personal basic information, geographic location, electricity usage data, photovoltaic generation and electricity usage data, photovoltaic power generation equipment parameters, and acceptable energy storage device price ranges for distributed photovoltaic users lacking energy storage devices.
4. The distributed photovoltaic distribution and storage method based on the block chain according to claim 1, wherein establishing the distribution and storage demand degree evaluation mechanism comprises:
selecting a data evaluation period T of the blockchain system based on the electricity utilization data and the photovoltaic power generation and utilization data of the user 0 Calculating the distribution and storage demand degree of the user, wherein the data evaluation period T 0 The dynamic timeliness is realized, and the allocation and storage demand degree of the user is evaluated according to the data evaluation period T 0 And (6) updating.
5. The distributed photovoltaic distribution and storage method based on the block chain as claimed in claim 4, wherein the method for calculating the distribution and storage demand degree of the user comprises:
wherein the content of the first and second substances,
for the degree of demand, θ, of allocation or storage of a user node i i Is the time deviation coefficient of the peak of electricity utilization and the peak of photovoltaic power generation, beta i Is T 0 Average electricity price, eta, of electricity purchased by the user during the day i For the generation of the power-consumption proportionality coefficient of the photovoltaic installation, c G,i Is the variation coefficient of the daily power generation of the photovoltaic.
6. The distributed photovoltaic distribution and storage method based on the block chain according to claim 1, wherein triggering an intelligent contract to generate a distribution and storage scheme based on the distribution and storage demand of the user comprises:
and after the distribution and storage demand degrees of all user nodes in a preset period are obtained, triggering the intelligent contract to calculate, and obtaining a plurality of distribution and storage schemes suitable for the user and the distribution and storage equity grade of the user in each distribution and storage scheme, wherein the intelligent contract comprises a price matching function, a distribution and storage demand degree sorting function, a distribution and storage equity grade function and a distribution and storage installation time estimation function.
7. The block chain-based distributed photovoltaic distribution and storage method according to claim 6, wherein the distribution and storage equity level function comprises: dividing the storage allocation right and interest levels of the users into three levels of A, B, C, and when a scheme group of the configurable energy storage device w has j users and a user i is named as q, the storage allocation right and interest levels of the user i in the scheme group are as follows:
the specific values of the boundary values s and v are proposed by a supervisor and are determined by the members of the alliance chain.
8. The block chain-based distributed photovoltaic distribution and storage method according to claim 6, wherein the distribution and storage installation time predictor function comprises: estimating the allocation and storage installation time t to be waited by the user i selection scheme through the allocation and storage right and interest level of the user, the supply plan of the energy storage device and the geographical positions of the user and the service provider w,i ：
Wherein e is a coefficient determined according to the user allocation equity grade, gradeThe coefficient corresponding to the A is minimum, the coefficient corresponding to the grade C is maximum, and the specific numerical value is determined by the members of the union chain together; u shape w The number of such energy storage devices can be provided by the service provider of the energy storage device w in the next evaluation period of the storage demand, and x is a distribution standard time coefficient determined according to the geographical positions of the user and the service provider.
9. The distributed photovoltaic distribution and storage method based on the block chain as claimed in claim 1, wherein the distribution and storage scheme is selected by a user, and the distribution and installation of the energy storage devices comprises: and after the user selects the distribution and storage scheme, the supervisor checks the information of the user and the selected distribution and storage scheme, after the checking is passed, the user and a service provider chain of the selected distribution and storage scheme get contact to carry out the installation work of the energy storage device, and the service provider periodically submits the progress information of the installation work of the energy storage device to a block chain system to complete the installation of the energy storage device and sign a distribution and storage related protocol.
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