A New Blockchain Consensus Algorithm for Virtual Power Plants

Abstract

AbstractAs one of the new modes of distributed energy aggregation trading and coordination optimization in the energy Internet, Virtual Power Plant (VPP) can effectively improve the power market operation and service capabilities. However, problems such as low efficiency of energy trading, dispatching and opaque transaction information in virtual power plants have become increasingly prominent, which greatly restricts the application and development of virtual power plants. This article first analyzes the feasibility of blockchain technology in virtual power plant energy transactions; then in the designed virtual power plant energy transaction scenario, a homomorphism that takes into account the time overhead of encryption and decryption is adopted. The encrypted data collection scheme realizes the safe transmission of distributed energy production and consumption to the virtual power plant. Finally, a weight-based blockchain consensus optimization algorithm is proposed to realize fast and highly efficient energy trading in the virtual power plant. Experiments have verified the effectiveness of the proposed scheme. Under the premise of ensuring the security of the virtual power plant’s data source, the energy transaction throughput in the virtual power plant is greatly increased and the transaction time overhead is reduced.KeywordsEnergy of internetVirtual power plantHomomorphic encryptionBlockchain consensus