Abstract
During the past decades, the environmental policy, public awareness of sustainable development, as well as technology breakthroughs in shale gas production have led to the upsurge of natural gas usage in electricity industry. The growing reliance of natural gas in electricity generation has brought the increasing level of interdependence between two capital energy sectors. Understanding the interactions in the gas and electricity supply chain is crucially important for government authorities, system designers, operators, and related stakeholders who are jointly responsible for the overall energy policy and system security. This chapter endeavours to establish a holistic modeling framework and analytical tool to address the planning, operation, and marketization issues of the interdependent natural gas and electric power infrastructure. In particular, the mathematical formulation of the gas flow in pipeline network will be introduced; the optimal gas-power flow problem will be addressed via convex optimization and ADMM method; locational marginal energy prices based bilateral gas-electricity market and strategic bidding problems of market participants will be modeled and analyzed as equilibrium problems; finally, reinforcing vulnerable components to improve system resilience under malicious attacks will be addressed via robust optimization.
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