关键词: 区块链, 电力大数据, 用户服务, 数据融合, 安全保障, 能源互联网, 数据安全

Abstract: s the boost of electric power big data，the diversity and complexity of its customers，services and service
process has brought prominent security problems. Blockchain is capable in achieving the consistency，traceability and
confidentiality of electric power big data，and can also be taken as a core technology in building a security assurance system
for the data. We analyze the vulnerability and current threats of the assurance system for electric power big data system at
first，and focus on the weak links in the system construction，and its strength and weakness in application. Accordingly，
we propose a construction scheme for the security assurance system of electric power big data based on blockchain. The
system can provide all-round protection for electric power big data. The scheme includes strategic assurance，technical
protection，operation guarantee，standard assurance and management process protection for electric power big data.

Key words: blockchain；electric power big data；service for users, data fusion, security assurance；energy internet, data
security