Flexible Dispatch for Integrated Power and Gas Systems Considering Power-to-Gas and Demand Response

Aiming at the problem of insufficient flexibility power system caused by large-scale wind grid integration, a flexible economic dispatch model electricity-gas integrated that considers power-to-gas and demand responses is proposed. First, it elaborates on scheduling response model. Secondly, natural gas are regarded as different stakeholders; with goal minimizing their respective operating costs, two-tier distributed coordination optimization electricity established. In order to achieve upper lower systems, slack variables introduced describe infeasible part results in used for interactive iterative solution The numerical revised IEEE 30-node 10-node illustrate effectiveness necessity proposed model, well superiority comprehensively considering improving economy system.