Demand Response Supported Optimal Load-Frequency Regulation of Sustainable Energy based Four-Interconnected Unequal Hybrid Microgrids

The work is engrossed on optimal load-frequency regulation of 4-interconnected unequal hybrid microgrids with demand response support. It’s a maiden attempt to include solar/wind based renewable systems with bio-energy based generating units for distributed co-generation as well as their interconnected coordination with a dual objective of waste and power management of Bhubaneswar city. Since the renewable resources are extremely nature dependent and affected by climatic variations, the suitable bioenergy based generators are included in each microgrid to meet the consumer demands with optimal allocation of resources. This work incorporated demand response contribution units to each microgrid and studied the coordinated responses of interconnected system for 4-different extreme scenarios of climatic variations with real-time recorded solar and wind data including realistic loading pattern. The proposed system is designed and simulated in Simulink, for optimal frequency regulation using Particle swarm optimization tuned classical PID controllers. The results are found competent enough to maintain load-frequency within acceptable limit with demand response support in all these 4-cases.