HOU Hui,XIE Yingbiao,GAN Ming,et al.Bi-layer Uncertainty Economic Scheduling for Port Multi-energy Microgrid with Cascade Utilization of Cold Energy[J].Automation of Electric Power Systems,2024,48(6):205-215.
HOU Hui,XIE Yingbiao,GAN Ming,et al.Bi-layer Uncertainty Economic Scheduling for Port Multi-energy Microgrid with Cascade Utilization of Cold Energy[J].Automation of Electric Power Systems,2024,48(6):205-215. DOI: 10.7500/AEPS20230721001.
Bi-layer Uncertainty Economic Scheduling for Port Multi-energy Microgrid with Cascade Utilization of Cold Energy
To effectively exploit the low-carbon flexibility potential of liquified natural gas (LNG) cold energy utilization in ports and give full play to the synergistic optimization effects across multiple time scales
a robust-stochastic bi-layer uncertainty economic scheduling model for port multi-energy microgrid (MEMG) considering the cascade utilization of LNG cold energy is proposed. Firstly
considering the low-carbon flexibility potential of LNG cold energy utilization across each deep cooling-mid cooling-shallow cooling temperature zone
a cold energy cascade utilization model of low-temperature carbon capture
cold energy power generation
and direct cooling is established
and a collaborative carbon processing of capture-storage-utilization is formed on this basis. Secondly
the wind power scenarios considering the temporal correlation of prediction errors are generated based on the equal probability inversion
and the scenarios are reduced by using a 0-1 planning model based on the Wasserstein distance. Thirdly
concerning the characteristic of wind power prediction error increasing with the increase of time scale
a robust-stochastic bi-layer uncertainty economic scheduling model with multi-time-scale optimization is constructed. The upper layer guarantees the robustness of day-ahead pre-scheduling decisions through distributionally robust optimization
and the lower layer guarantees the economic benefits of intra-day rolling scheduling decisions through stochastic optimization. Finally
the simulation results demonstrate that the proposed robust-stochastic bi-layer scheduling model considering the cold energy cascade utilization can not only better solve the contradiction of low prediction accuracy on day-ahead long-time-scale and easy to fall into the local optimum on intra-day short-time-scale
but also provide more economy
low-carbon emissions and power supply flexibility to the port MEMG.
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references
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