A incessant power supply system of HVDC for smart power grids

The utility model provides an incessant power supply system of HVDC for smart power grids, includes HVDC UPS, HVDC UPS connects emergency lighting module, host module, electric energy billing module and conflagration monitoring module respectively, display module connects UPS UPS and host module respectively, HVDC UPS includes: first power AC1 and second source AC2, first power AC1 loops through first rectifier and is connected the output with the diode D1 that the forward switched on, second source AC2 loops through the second rectifier and is connected the output with the diode D2 that the forward switched on, battery E1's positive pole, battery E1's minus earth is connected to diode D2's positive pole. Its service reliability that not only can effectively improve uninterrupted power source, and it can solve the unstable condition that equipment itself produced because of electromagnetic interference.