A bi-level programming for multistage co-expansion planning of the integrated gas and electricity system

Qing Zeng, Baohua Zhang, Jiakun Fang and Zhe Chen

Applied Energy, 2017, vol. 200, issue C, 192-203

Abstract: This paper focuses on the coordinated expansion planning of the integrated natural gas and electrical power systems with bi-directional energy conversion. Both the Gas-fired Power Generations (GPGs) and Power-to-Gas stations (P2Gs) are considered as the linkages between the natural gas and electric power systems. The system operation is optimized and embedded in the planning horizon. A bi-level multi-stage programming problem is formulated to minimize the investment cost plus the operational cost. The upper-level optimizes the expansion plan and determines the network topology as well as the generation capacities, while the lower-level is formulated as an optimal economic dispatch under the operational constraints given by the upper-level decision. To solve the bi-level multi-stage programming problem, a hybrid algorithm is proposed combining the modified binary particle swarm optimization (BPSO) and the interior point method (IPM). The BPSO is used for the upper-level sub-problem, and the IPM is adopted for the lower-level sub-problem. Numerical case studies have been carried out on the practical gas and electricity transmission network in western Denmark. Simulation results demonstrate the effectiveness of the proposed approach.

Keywords: Bi-level programming; Co-expansion planning; Power to gas; Integrated gas and electricity system (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (48)

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DOI: 10.1016/j.apenergy.2017.05.022

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