Intentional islanding of Microgrid by frequency support with building HVAC system

The paper proposes a control strategy for managing the load associated to the HVAC system of a building. The idea is to use the thermal energy stored into the building to contribute to frequency response during emergency conditions and improve islanding transition. The frequency dynamics of a Microgrid, following a disturbance on the main grid, can be improved using load response. A test network model of a commercial microgrid has been implemented in a dedicated simulation environment, in order to evaluate the performance of the microgrid frequency response and the effectiveness of the proposed technique. A comparative study against a dynamic response using a BESS (Battery Energy Storage System) is also investigated.