Event-triggered mechanism based distributed optimal frequency regulation of power grid

Considering the limitation of communication network, the event-triggered mechanism based distributed optimal frequency regulation is proposed, which can restore the frequency and retain the economic efficiency of power grid simultaneously under certain load disturbances. Compared with the traditional distributed optimal frequency regulation based on continuous or periodic sampled-data information transmission mechanism, the communication burden among the areas in power grid is reduced since two novel types of event-triggered mechanisms, which possess the information demand-transmission property, are constructed and introduced in the regulation method in this study. Moreover, Zeno behaviour is proved to be avoided in order to guarantee the availability of event-triggered mechanisms in practical power grid. The effectiveness of theoretical result of this study is verified by the simulation study.