A series multi-step approach for operation Co-optimization of integrated power and natural gas systems

Behdad Faridpak, Meisam Farrokhifar, Ilgiz Murzakhanov and Amin Safari

Energy, 2020, vol. 204, issue C

Abstract: Power to gas units and gas turbines have provided considerable opportunities for bidirectional interdependency between electric power and natural gas infrastructures. This paper proposes a series of multi-step strategy with surrogate Lagrange relaxation for operation co-optimization of an integrated power and natural gas system. At first, the value of coordination capacity is considered as a contract to avoid dysfunction in each system. Then, the uncertainties and risks analysis associated with wind speed, solar radiation, and load fluctuation are implemented by generating stochastic scenarios. Finally, before employing surrogate Lagrange relaxation, the non-linear and non-convex gas flow constraint is linearized by two-dimension piecewise linearization. In the proposed procedure, constraints for energy storages and renewable energy sources are included. Two case studies are employed to verify the effectiveness of the proposed method. The surrogate Lagrange relaxation approach with coordination branch & cut method enhances the accuracy of convergence and can effectively reduce the decision-making time.

Keywords: Optimal operation; Uncertainty; Integrated power system and natural gas network; Lagrange relaxation; Risk analysis (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:204:y:2020:i:c:s0360544220310045

DOI: 10.1016/j.energy.2020.117897

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