This paper constructs an integrated energy system framework that includes supply-side physical energy storage
demand response
and Vehicle-to-Grid (V2G) electric vehicles. The framework is designed to supply energy to communities composed of multiple types of buildings
with the objective of minimizing the total system operating cost. The operational parameters of the integrated energy system with generalized energy storage are been optimized accordingly. Furthermore
this study investigates the energy supply characteristics and operational features of the integrated energy system integrated with different types of generalized energy storage
and analyzes the energy coupling relationship between physical energy storage and demand response
as well as the correlation between operational outcomes. The results indicate that the total operational costs for typical winter and summer days are reduced by 23.96% and 55.90%
respectively
compared to an integrated energy system without energy storage. The integration of physical energy storage and demand response can lead to a reduction in the total system operating cost by approximately 18.69% and 52.36%
respectively. Demand response reduces the peak-valley difference rate of electricity load on typical winter days from 98.41% to 78.26%
and on typical summer days from 94.80% to 93.24%. This method tackles challenges in complex energy systems
such as diverse equipment types
complex control parameters
and difficult operational optimization. It also offers a theoretical foundation for optimizing complex integrated energy systems.
DOU C X, ZHOU X H, ZHANG T F, et al.Economic optimization dispatching strategy of microgrid for promoting photoelectric consumption considering cogeneration and demand response[J]. Journal of modern power systems and clean energy, 2020, 8(3): 557-563.
YAN X W, LI R J.Flexible coordination optimization scheduling of active distribution network with smart load[J]. IEEE access, 2020, 8: 59145-59157.
JIA S D, KANG X N, CUI J X, et al.Hierarchical stochastic optimal scheduling of electric thermal hydrogen integrated energy system considering electric vehicles[J]. Energies, 2022, 15(15): 5509.
WU M, XU J Z, ZENG L J, et al.Two-stage robust optimization model for park integrated energy system based on dynamic programming[J]. Applied energy, 2022, 308: 118249.
WU D, HAN Z H, LIU Z J, et al.Comparative study of optimization method and optimal operation strategy for multi-scenario integrated energy system[J]. Energy, 2021, 217: 119311.
YAN R J, LU Z R, WANG J J, et al.Stochastic multi-scenario optimization for a hybrid combined cooling, heating and power system considering multi-criteria[J]. Energy conversion and management, 2021, 233: 113911.
ZHANG L H, LI S R, NIE Q Y, et al.A two-stage benefit optimization and multi-participant benefit-sharing strategy for hybrid renewable energy systems in rural areas under carbon trading[J]. Renewable energy, 2022, 189: 744-761.
LU X H, LIU Z X, MA L, et al.A robust optimization approach for optimal load dispatch of community energy hub[J]. Applied energy, 2020, 259: 114195.
WANG Z, TAO H J, CAI W K, et al.Study on the multitime scale rolling optimization operation of a near-zero energy building energy supply system[J]. Energy conversion and management, 2022, 270: 116255.
QIU Y, ZHOU S Y, WANG J H, et al.Feasibility analysis of utilising underground hydrogen storage facilities in integrated energy system: case studies in China[J]. Applied energy, 2020, 269: 115140.
YAN R J, WANG J J, WANG J H, et al.A two-stage stochastic-robust optimization for a hybrid renewable energy CCHP system considering multiple scenario-interval uncertainties[J]. Energy, 2022, 247: 123498.
LI M, MU H L, LI N, et al.Optimal option of natural-gas district distributed energy systems for various buildings[J]. Energy and buildings, 2014, 75: 70-83.
ARSALIS A, ALEXANDROU A N.Parametric study and cost analysis of a solar-heating-and-cooling system for detached single-family households in hot climates[J]. Solar energy, 2015, 117: 59-73.
LIU Z J, FAN G Y, SUN D K, et al.A novel distributed energy system combining hybrid energy storage and a multi-objective optimization method for nearly zero-energy communities and buildings[J]. Energy, 2022, 239: 122577.
QIAO Y Y, HU F, XIONG W, et al.Multi-objective optimization of integrated energy system considering installation configuration[J]. Energy, 2023, 263: 125785.