Automated disturbance data retrieval for fault analysis via application service provider

This paper presents a novel approach of automated disturbance data retrieval for automatic fault and disturbance analysis in electrical power system. A new software framework for automated disturbances data retrieval and pre-processing based on the International Standards (Communication Network and System in Substation) IEC-61850 and application service provider is proposed. The data for analyses are obtained from Intelligent Electronic Devices (IEDs) via the IEC 61850 protocol. The triggering technique of the Automated Fault Analysis Services (AFAS) is based on the real time values of currents and voltages which are continuously monitored via Ole for Process Control (OPC) and Manufacturing Message Specification (MMS). The new services for automated disturbance data retrieval and analysis through the IEC 61850 and Application Service Provider (ASP) can enhance the investigations process performed by engineers.