SUPERVISORY CONTROL OF GRID CONNECTED WIND POWER SYSTEMS TO GUARANTEE SAFE OPERATION

This article proposes a supervisor synthesis for a two level hierarchical control structure of a grid connected wind power system to ensure its safe and optimal operation. The global hybrid dynamics may roughly be captured into a hybrid automaton. The optimization tasks, specific to different operating regimes, are performed by the low level continuous controllers. A supervisor placed on a higher level must guarantee the safe transition from an operating regime to another, triggered by some discrete events. The interest is focused on the design problem on the higher level: the discrete event modelling and the supervisor design in the supervisory control framework.