Intelligent control of double power supplies system based on DSP and CAN bus

An intelligent control scheme of the double power supplies system based on digital signal processor (DSP) and controller area network (CAN) bus is introduced in this paper. In this scheme, the power inverter can synchronously track the network precisely in double power supplies condition, and switch in double directions seamlessly (in less than 2.4 ms) between double power supplies. This control system provides online detection and calculations, monitoring and adjustment, setting and modifying of parameter, storing and inquiring, computer management and communication for double power supplies information. And it has been applied successfully in 10 KVA - 30 KVA inverse power systems.