Abstract
This paper focuses on the development of Security- Constrained Unit Commitment (SCUC) with natural gas systems. This paper proposes an Integrated Electricity and Natural Gas System (IEGS) to describe the day-ahead scheduling including natural gas purchase contract and transmission constraints. An Second-order Cone Programming (SOCP) is proposed to handle the nonlinear steady-state natural gas flow And through penalty and linearization method, the original Mixed-Integer Non-linear Programming (MINLP) is converted into Mixed-Integer Second- Order Cone Programming (MISOCP) problem. Case study simulations demonstrate the workable solution of the scheduling method.
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