On the premise of ensuring the reliability of the wind solar hydrogen storage integrated power supply system
in order to minimize the unit power generation cost and improve the overall economic performance of the system
this paper adds the relative standard deviation of interconnection line power in the objective function to measure the stability of the system on the basis of an off-grid system
and introduces a stepped carbon emission cost in the economic objective function. The constraint conditions include the interaction power constraint with the grid and the system self-balancing rate constraint. At the same time
an operation control strategy that takes into account the time-of-use electricity pricing of the grid is proposed to improve the operation of the system. The IMOSSA algorithm is used to obtain the optimal configuration scheme. The results of the study show that this optimization can increase the self-balancing rate of the system in the range of 10% to 20% and effectively reduce the total annual net present cost of the system by about 15%
which demonstrates the effectiveness of the proposed research methodology.
GHIASI M.Detailed study, multi-objective optimization, and design of an AC-DC smart microgrid with hybrid renewable energy resources[J]. Energy, 2019, 169: 496-507.
KIM S D, JO K Y, GIM J.A study on the thermal and electrical optimization algorithms of campus microgrid[J]. Journal of the Korean institute of illuminating and electrical installation engineers, 2019, 33(2): 45-52.
NGUYEN T A, CROW M L.Stochastic optimization of renewable-based microgrid operation incorporating battery operating cost[J]. IEEE transactions on power systems, 2016, 31(3): 2289-2296.