Energy hubs is an integrated system which is capable of transporting, transforming, and storing several types of energy. A number of hubs can be combined as a network and achieve higher efficiency by exchanging information and energy with each other. A decision-making framework for optimal integration of independent small-scale distributed energy systems and traditional large scale combined heating and power (CHP) plants is presented, and an energy supply system with renewable energy resources in Shanghai is cited as a case study. A performance simulation model of this energy network is proposed based on energy hub concept and energy flow between its elements. Furthermore, a novel optimization method named Whales optimization algorithm (WOA) is presented for 24 h operational optimization. A case study is undertaken on a seven-node energy system, including four energy hubs and three load hubs. The results of the case study show that the proposed model and optimization method can improve energy utilization efficiency and reduce system operating costs, even under a system contingency condition.
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February 2019
Research-Article
Modeling and Operational Optimization Based on Energy Hubs for Complex Energy Networks With Distributed Energy Resources
Tiemin Shao
Tiemin Shao
PetroChina Beijing Oil &
Gas Pipeline Control Center,
Beijing 100032, China
Gas Pipeline Control Center,
Beijing 100032, China
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Shixi Ma
Dengji Zhou
Huisheng Zhang
Shilie Weng
Tiemin Shao
PetroChina Beijing Oil &
Gas Pipeline Control Center,
Beijing 100032, China
Gas Pipeline Control Center,
Beijing 100032, China
Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received February 9, 2018; final manuscript received August 13, 2018; published online September 26, 2018. Assoc. Editor: Abel Hernandez-Guerrero.
J. Energy Resour. Technol. Feb 2019, 141(2): 022002 (11 pages)
Published Online: September 26, 2018
Article history
Received:
February 9, 2018
Revised:
August 13, 2018
Citation
Ma, S., Zhou, D., Zhang, H., Weng, S., and Shao, T. (September 26, 2018). "Modeling and Operational Optimization Based on Energy Hubs for Complex Energy Networks With Distributed Energy Resources." ASME. J. Energy Resour. Technol. February 2019; 141(2): 022002. https://doi.org/10.1115/1.4041287
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