Generalized distributed control system based on CAN bus for wind diesel hybrid systems

High wind penetration wind-diesel hybrid systems (WDHS) have three modes of operation: diesel only (DO), wind diesel (WD) and wind only (WO). A distributed control system (DCS) based on the CAN (controller area network) bus is proposed for diesel generators (DGs) scheduling in DO mode, for active power control in WD mode, for frequency control in WO mode and for reactive power control in the three operation modes. Also it is presented the main message for each of the DCS proposed. Finally it is specified a complete DCS solution for the control of WDHS based on two CAN buses, one high speed CAN bus with the nodes involved in the real time tasks and other low speed CAN bus which links the nodes taking part in the DGs and controllable loads scheduling task.