Dynamic Simulation and Analysis of Ancillary Service Demand Response Strategies for VAV HVAC Systems

Output variability and low generating inertia associated with solar and wind electric power generation increase the requirement of grid-scale flexibility services, called ancillary services. Commercial buildings consume a significant portion of electricity in the United States and can help provide demand-side ancillary services through use of their HVAC systems.  In order to investigate the performance of a common commercial HVAC system while providing ancillary services, a dynamic model of a representative variable air volume system was developed.  The model has been used to simulate and evaluate the provision of spinning reserve and regulation ancillary services using common demand response strategies.