Consensus mechanism of virtual power plant transaction blockchain based on credit value

In the trusted transaction of virtual power plants based on the blockchain, the safe, efficient and flexible consensus mechanism is the key to determine the development of the future blockchain trading system. In order to meet the requirements of privacy and efficiency of power data consensus, a distributed consensus mechanism VPP-PBFT suitable for virtual power plant transaction blockchain is proposed. Firstly, a multi-agent based trusted transaction architecture of virtual power plant blockchain is designed to meet the transaction needs under large-scale node access. Secondly, credit evaluation indicators of market entities are designed, and a distributed consensus mechanism VPP-PBFT is proposed for virtual power plant transactions. Based on the credit value, system selection and node status change are realized, and monitoring node consensus process is added. Based on this, the consistency protocol of traditional PBFT consensus algorithm is simplified. The simulation of the example shows that VPP-PBFT consensus mechanism has the ability to judge the credit of market entities, improve the efficiency of consensus on the premise of ensuring the reliability of consensus, meet the transaction requirements of virtual power plants, and encourage market entities to maintain their own credit.