A Method for Data Integration Based on Online Operation Data of Large-scale Power System

摘要

This paper proposes a method for data integration based on online operation data for large-scale power system. Based online data interface technology, this method establishes a mapping relationship between online data and offline data. By topological combination and boundary power flow adjustment,a consistent power flow result for whole system can be obtained. This method can enhance the reliability of power flow calculation and transient analysis through supplementing the incomplete operating data with offline data. It can overcome the conservatism of traditional offline security analysis for power system,and can reflect the real-time operation state of power system better. The method was put into operation on power grid in North China and Central China.