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Energies 2017, 10(1), 124; doi:10.3390/en10010124

Optimal Expansion Co-Planning of Reconfigurable Electricity and Natural Gas Distribution Systems Incorporating Energy Hubs

1
Electrical Engineering College, Zhejiang University, Hangzhou 310027, China
2
School of Automation, Guangdong University of Technology, Guangzhou 510006, China
*
Author to whom correspondence should be addressed.
Academic Editor: Michael Gerard Pecht
Received: 13 August 2016 / Revised: 28 November 2016 / Accepted: 12 January 2017 / Published: 19 January 2017
View Full-Text   |   Download PDF [1586 KB, uploaded 19 January 2017]   |  

Abstract

In a carbon-constrained world, natural gas with low emission intensity plays an important role in the energy consumption area. Energy consumers and distribution networks are linked via energy hubs. Meanwhile, reconfiguration that optimizes operational performance while maintaining a radial network topology is a worldwide technique in the electricity distribution system. To improve the overall efficiency of energy infrastructure, the expansion of electricity distribution lines and elements within energy hubs should be co-planned. In this paper, the co-planning process is modeled as a mixed integer quadratic programming problem to handle conflicting objectives simultaneously. We propose a novel model to identify the optimal co-expansion plan in terms of total cost. Operational factors including energy storages and reconfiguration are considered within the systems to serve electricity, cooling and heating loads. Reconfiguration and elements in energy hubs can avoid or defer new elements’ installation to minimize the investment cost, maintenance cost, operation cost, and interruption cost in the planning horizon. The proposed co-planning approach is verified on 3 and 12-node electricity and natural gas distribution systems coupled via energy hubs. Numerical results show the ability of our proposed expansion co-planning approach based on energy hub in meeting energy demand. View Full-Text
Keywords: energy hub; energy storage; reconfiguration; expansion planning; multi-energy systems; electricity and natural gas distribution systems energy hub; energy storage; reconfiguration; expansion planning; multi-energy systems; electricity and natural gas distribution systems
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Zhou, X.; Guo, C.; Wang, Y.; Li, W. Optimal Expansion Co-Planning of Reconfigurable Electricity and Natural Gas Distribution Systems Incorporating Energy Hubs. Energies 2017, 10, 124.

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