Online Monitoring and Early Warning Technology of Repeated Multiple Blackouts in Distribution Network Based on Multi-source Information Fusion and Delphi Method

The service-oriented architecture model (SOA) is highly open, hierarchical, and can support parallel / distributed information interaction. Through well-defined interfaces and contracts to contact different services of applications, it has many applications in the field of power system. The SOA architecture is used to realize multi-source power outage information fusion and provide data support for power outage risk assessment and hierarchical early warning.For the problem of repeated multiple blackouts in the distribution network, based on the SOA framework design, the multi-source information fusion technology of the distribution network is used to provide data exchange for online monitoring and early warning technology. By analyzing the factors affecting the repeated multiple blackouts risk and the blackout grading warning of the distribution network, every impact factor scoring standards are given respectively. The Delphi method is used to establish an indicator evaluation system to evaluate the repeated multiple blackouts risks and the indicators of power outage classification warnings in the distribution network, and calculate the weights of each indicator. A repeated multiple blackouts assessment was conducted for an actual blackouts instance, and the comprehensive probability value and hierarchical warning level of repeated multiple blackouts are obtained to realize online monitoring and early warning, which provided a new technology for dealing with repeated multiple blackouts. (C) 2020 Jordan Journal of Mechanical and Industrial Engineering. All rights reserved