Blockchain-based green power certification method, apparatus, and system

• Main Authors: JIA, Haiqing, JIA, Fan, LI, Qingchun, LI, Xin, LI, Guomin, XIE, Kai, LI, Da, YANG, Chao, FENG, Jingli, LU, Shengzhi, XIE, Wen, ZHANG, Xian, FAN, Kun, LIU, Yonghui, ZHAO, Lihua, BAI, Desheng, ZHAO, Liang, SUN, Tian, ZHANG, Shengnan, ZHANG, Zhe, ZHANG, Nan, CHEN, Gang, SU, Zhan, JI, Shijie, XUAN, Jiaxing, LIANG, Hexiao, WANG, Hejian, WANG, Dong, XING, Tong
• Format: Patent
• Language: English
• Published: 06.04.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The present disclosure provides a blockchain-based green power certification method, apparatus, and system, to pre-process obtained basic data to obtain proof-of-existence data, certify the proof-of-existence data from a production side and a consumption side by using a certification chain and a token chain respectively, and obtain a green power attribute certificate and a green power consumption label if the certification is passed; generate a unique digital identifier for the green power attribute certificate and the green power consumption label separately based on a non-fungible token (NFT), which realizes non-interchangeability, indivisibility, and other characteristics of the certificate and the identifier; and supervise and verify a certification process by using a chain of custody, and generate a corresponding unique blockchain identifier for the certification chain, the token chain, and the chain of custody separately through multi-chain interaction, so as to realize data interaction between blockchains. This resolves problems of an inaccurate certification mechanism of renewable energy, and information asymmetry and data opaqueness in attribute certification and consumption evaluation processes of the renewable energy. Pre-process obtained basic data to obtain structured data and unstructured data Perform a proof-of-existence operation for the structured data S102 and the unstructured data on a certification chain to obtain proof of-existence data, and control the certification chain to periodically send the proof-of-existence data to a token chain through multi-chain interaction Control the certification chain to call a green power certification model and the proof-of-existence data to obtain constraints of the green power certification model, determine, based on the S103 constraints and the proof-of-existence data, whether an attribute of electric energy generated by a power station is a green power attribute, and if the attribute of the electric energy generated by the power station is the green power attribute, generate a green power attribute certificate by using the certification chain Control the token chain to call a consumption evaluation model and the proof-of-existence data to determine whether a power S104 user on a power consumption side performs green power consumption, and if the power user on the power consumption side performs the green power consumption, generate a green power consumption label by using the token chain Generate a unique digital identifier for the green power attribute S105 certificate and the green power consumption label separately based on an NFT In a green power attribute certification process of the certification chain and in a green power consumption certification process of the token chain, supervise and verify, by using a chain of custody, execution information of each node in S106 the certification processes of the certification chain and the token chain; and store the unique digital identifier in the token chain if the execution information passes the supervision and verification, or store abnormal associated data in the chain of custody if the execution information does not pass the supervision and verification