Distributed power supply and micro-grid intelligent early warning method thereof

The invention discloses a distributed power supply and a micro-grid intelligent early warning method thereof. The method includes the steps that 1, a grid safety operation parameter database, a grid operation parameter threshold value for permission of grid connection of a micro-grid, a grid operation parameter threshold value corresponding to cut-off of the micro-grid and a micro-grid safety operation parameter database are preset in a remote management platform; 2, the micro-grid safety operation parameter database is preset in the remote management platform, and micro-grid operation parameters are monitored on line. The method is suitable for photovoltaic distributed power supplies with the voltage grade of 10 kV or above. According to the early warning method, it is required to track the operation state of the micro-grid on line and acquire the real-time information of the micro-grid, it is also required to carry out safety assessment on the grid and equipment, find potential safety hazards existing in th