Economic Load Dispatch for Islanded Microgrids Considering the Droop Settings of Distributed Generators
摘要
The economic load dispatch (ELD) in the context of islanded microgrids poses certain challenges, especially when distributed generators use a droop control strategy. This study proposes a novel ELD problem designed for microgrids operating in islanded mode, as these grids can be beneficial in isolated areas and during grid failures. The model considers tertiary economic dispatch adjustments, secondary frequency and voltage restoration, and primary droop-based management. In order to increase the accuracy and cost-effectiveness of power sharing, particle swarm optimization has been used to find the optimal values of droop coefficients in order to overcome the problems of unequal load sharing within the distributed generators. The simulation results indicate that the proposed strategy works to provide the best dispatch at the lowest cost, with stable compliance and strong power sharing across distributed generators in various demand and renewable generation scenarios. The technique is unique in that it may simultaneously increase economic efficiency and operational performance. The cost of energy generation in microgrids has decreased from ₹4.60/KWh (normal for coal-based generation) to ₹3.30/KWh by putting the proposed technique into practice. This indicates the efficacy of the proposed strategy and represents an approximate 28.26