In order to increase the consumption ratio of renewable energy in the island micro-grid and reduce the load peak-to-valley difference.This paper constructs a multi-objective op-timal scheduling model for island microgrid containing solar energy,wind energy,tidal ener-gy,pumped storage power plant and diesel generator with the objective of satisfying the de-mand of island residents and minimizing the total cost of microgrid operation,taking into ac-count the constraints related to power balance,diesel generator ramp-up and pumped storage power plant start/stop.Strategies such as sobel mechanism and sine cosine perturbation are used to improve the sparrow search algorithm.experimental comparison with other optimi-zation algorithms through test functions shows that the improved algorithm can not only o-vercome the defects of the algorithm itself,but also improve the convergence effect and search ability,and apply it to the model solving process.The simulation results show that the multi-objective optimal scheduling model of the island microgrid constructed in this paper can effectively improve the utilization rate of renewable energy,is green and pollution-free,and has significant economic benefits,and provides an outlook on future research of the is-land microgrid.
维普
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