Integrated Planning of Electricity and Natural Gas Transportation Systems for Enhancing the Power Grid Resilience.

Integrated Planning of Electricity and Natural Gas Transportation Systems for Enhancing the Power Grid Resilience.

Natural gas

Optimization

Natural gas transportation

Uncertainty

Resilience

Natural gas pipelines

Planning

NATURAL gas pipelines

NATURAL gas transportation

ELECTRIC generators

ELECTRIC power distribution grids

Electricity and natural gas systems

Generators

NATURAL disasters

Power grids

power system planning

variable uncertainty set

Disasters

Investments

Gases

Iterative methods

Electric power system planning

Electric power transmission networks

resilience

Power systems are exceedingly faced with extreme events such as natural disasters and deliberate attacks. In comparison, the underground natural gas system is considered less vulnerable to such extreme events. We consider that the overhead power grid can be hardened by replacing segments of electric power grid with underground natural gas pipelines as an energy transportation system to countereffect extreme events which can damage interdependent infrastructures severely. In this paper, an integrated electricity and natural gas transportation system planning algorithm is proposed for enhancing the power grid resilience in extreme conditions. A variable uncertainty set is developed to describe the interactions among power grid expansion states and extreme events. The proposed planning problem is formulated as a two-stage robust optimization problem. First, the influence of extreme events representing natural disasters is described by the proposed variable uncertainty set and the proposed robust model for the integrated planning is solved with the grid resilience represented by a set of constraints. Second, the investment decisions are evaluated iteratively using the conditional events. The integrated electricity and natural gas planning options are analyzed using the modified IEEE-RTS 1979 for enhancing the power grid resilience. The numerical results point out that the proposed integrated planning is an effective approach to improving the power grid resilience. [ABSTRACT FROM AUTHOR]

4418-4429

6

32

IEEE Transactions on Power Systems

2017

Shao, Chengcheng

Shahidehpour, Mohammad

Wang, Xifan

Wang, Xiuli

Wang, Biyang

journalArticle

8858950

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