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Electric vehicle safety power transaction and excitation system based on energy block chain

A technology for electric vehicles and electricity trading, applied in computer security devices, electrical digital data processing, digital data protection, etc., can solve the problems of unsuitable energy market network power trading systems, limited scalability and network efficiency, etc.

Active Publication Date: 2019-12-20
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above solutions have limited scalability and network efficiency, and are not suitable for huge energy market networks and intricate power trading systems

Method used

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  • Electric vehicle safety power transaction and excitation system based on energy block chain
  • Electric vehicle safety power transaction and excitation system based on energy block chain
  • Electric vehicle safety power transaction and excitation system based on energy block chain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Example 1. Secure and trusted signatures for electric vehicles and charging infrastructure.

[0052] When the electric vehicle in the present invention conducts power transactions, a large amount of transaction data will be generated, including basic information of the electric vehicle, charging and discharging time, location information, and some operating habits of the user. These transaction data need to be stored safely and efficiently. Otherwise, it is easy to be stolen or tampered by attackers, or even fake other vehicles to broadcast wrong information, which will seriously affect the efficiency of electric vehicle charging services and the stability of the system. Therefore, the use of digital signature technology based on the bilinear pairing properties on the elliptic curve can perform anonymous authentication on power transaction data and identity information, such as (S02). Figure 4 The flow chart of the digital signature algorithm. The specific steps of digit...

Embodiment 2

[0083] Example 2. Distributed consensus and storage of power interaction data under fault-tolerant consensus algorithm.

[0084] The energy block chain in the present invention uses the PBFT consensus mechanism to solve the consensus problem of the data block. The consensus process is to reach an agreement when a failure occurs by repeating several rounds of voting. A leader (Leader) is selected from all the preselected nodes (Preselected Node, PSN) as the master node to perform the writing operation, and the other preselected nodes are used as replica nodes to audit and verify data blocks, such as (S03). Figure 5 It is a flow chart of distributed consensus using Byzantine fault-tolerant algorithm in the present invention. Suppose the total number of preselected nodes in the network is n, and there are f abnormal nodes. Select the vehicle service center as the leader and record it as PSN 0 , Battery replacement stations, smart grids and large charging stations are recorded as P...

Embodiment 3

[0096] Example 3. Electricity trading between electric vehicles and energy markets based on game theory incentive contracts.

[0097] When the electric vehicle of the present invention conducts electricity trading, it is actually a game problem to choose the trading price or trading strategy that has the best profit for both parties involved. Every time a new data block is added to the energy blockchain, the pre-selected node will receive the "energy coin" reward from the system, and automatically execute the reward distribution command according to the built-in smart contract, such as (S05). Image 6 It is the energy transmission scenario based on the incentive contract of the present invention, in which the electric vehicle with pre-sold power is represented as EV s , An electric vehicle with pre-purchased electricity is expressed as EV p . LAG acts as an intermediary between the grid and electric vehicles. It can convert collected solar energy into electricity or directly purc...

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PUM

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Abstract

The invention discloses an electric vehicle safety electric power transaction and excitation system based on an energy block chain. The system comprises three main entities including an electric vehicle, a charging infrastructure and a vehicle service center. When an electric vehicle performs power transaction with a charging infrastructure or other electric vehicles, a digital signature technology based on bilinear pairing properties on an elliptic curve is adopted to ensure the authenticity and reliability of vehicle identity and sent information. In a data block consensus stage, a practicalByzantine fault-tolerant consensus algorithm is adopted, so that the fault-tolerant capability and throughput of the whole network are improved. And each charging infrastructure node stores an energyblock chain distributed account book in a built-in data processor. In addition, in order to stimulate the legal compliance of the electric vehicle to participate in the power transaction, an intelligent contract of a triggering condition and a stimulation mechanism of an energy coin reward expressed according to the energy contribution amount are set. An incentive contract based on the game theory is used for promoting enthusiasm of vehicle power transaction, so that the system is more active and stable.

Description

technical field [0001] The invention belongs to the field of blockchain information security and relates to the safe transmission and storage of power transaction data in the electric vehicle (EV) energy market. Background technique [0002] The power of electric vehicles is provided by the on-board power supply, and the motor drives the vehicle. As an important part of smart grid technology, the Vehicle-to-Grid (V2G) network will greatly enhance and improve the operating performance of the power system. In order to cope with the challenges of the global energy crisis and environmental issues, electric vehicles will replace traditional internal combustion engine vehicles as a technological solution to sustainability issues. They have the advantages of zero emissions, high efficiency and low cost compared with traditional modes of transportation. In the future, electric vehicles will first provide charging and discharging services with the Charging Infrastructure (CI), and t...

Claims

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Application Information

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IPC IPC(8): G06Q30/02G06F16/27G06F21/62
CPCG06Q30/0226G06Q30/0202G06F16/275G06F21/6272
Inventor 张小红陈晓峰
Owner JIANGXI UNIV OF SCI & TECH