Distributed scheduling of wireless communications for voltage control in micro smart grid

Voltage control is an important task in micro grid, which adjusts the voltages of the distributed energy generators (DEGs). Wireless communication is applied to convey the information from the voltage sensors to the DEGs. Due to the interference among the wireless sensors, scheduling is necessary for the transmissions of sensors. A distributed scheduling algorithm is proposed within the framework of hybrid dynamical systems. The discrete state in the system dynamics is obtained according to the scheduled sensors. Then, the scheduling is formulated as the problem of optimizing the mode sequence of the system dynamics and is then solved using sub-gradient algorithm in a distributed manner. The performance is demonstrated by numerical simulations.