Research on Optimal Scheduling Strategy for Grid-Connected Operation of DC Microgrid Based on Planned Power of Interconnection Line
With the increasing integration of renewable energy sources into the main grid,the establishment of active distribution network systems is imperative to monitor and respond to the scheduling demands of the main grid.This paper presents a cost-effective scheduling strategy to transform microgrids into active distribution networks using interconnection power scheduling.The strategy aims to minimize the operational system costs of wind-solar-storage DC microgrids during grid-connected operation.An improved sparrow search algorithm is employed to solve the operational cost optimization.By comparing with the scheduling result of the non-interconnection power scheduling strategy,the proposed scheduling strategy reduces the grid-connected operational costs by 9.79%,while simultaneously fulfilling the peak-shaving and valley-filling directives from the main grid.These results verify the feasibility of the proposed scheduling strategy for economically dispatching grid-connected DC microgrids.
DC microgridplanned power of the interconnection linescheduling strategypeak shaving and valley fillingsparrow search algorithm
万方数据
维普
