A Novel Smart On-line Fault Diagnosis and Analysis Approach of Power Grid Based on WAMS

Two main problems exist in current online fault diagnosis and analysis system for power grid. One is data source problem due to time delay for transferring information and asynchronous time of accepting data. The other is two key blind spots which exist in false-operation and fail-operation diagnosis. Meanwhile,real-time fault diagnosis and exact fault analysis are key self-healing characters of smart grid. A novel fast fault diagnosis and analysis approach of power grid based on WAMS was presented in this paper for solving problems mentioned above. Firstly,the architecture was designed for data service oriented and developed from multi-agent technology. Then the structure and methods of each agent were analysed in detail. Finally,it is shown by test results of disturbance experiment in a real power grid that this approach is fast and correct in fault diagnosis and analysis result. It will be very useful to reduce the risk of system blackouts when used in practical smart grid.