首页|Novel Optimal Dispatch Method for Multiple Energy Sources in Regional Integrated Energy Systems Considering Wind Curtailment
Novel Optimal Dispatch Method for Multiple Energy Sources in Regional Integrated Energy Systems Considering Wind Curtailment
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维普
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Power-to-gas technology uses temporary surplus electricity to create either renewable hydrogen or renewable natural gas,which can then be stored in natural-gas pipelines and used when needed.As a result,P2G transforms conventional one-way coupling of a power/heat/natural-gas system into two-way coupling.Furthermore,its operating characteristics makes it possible to more effectively utilize wind-power.This paper describes a new optimal dispatch model for integrated electric-ity/gas/heat energy systems.The model considers the effective use of surplus wind-energy with electricity-to-gas equipment.First,a multi-energy network model is built,taking into account both equipment and network constraints.Then,we apply a novel two-layer optimization method,which uses P2G,to"absorb"wind power.While the top-layer model is used for the day-ahead dispatch of the natural-gas network containing P2G,the bottom-layer model describes the day-ahead economic dispatch of the electricity/heat system,which includes wind power.Based on the Karush-Kuhn-Tucher conditions of the bottom-layer model,the two-layer model is transformed into a single-layer model,and we linearize the nonlinear equation to convert the nonlinear model into a mix-integer linear programming problem,which is solvable using the General Algebraic Modeling System.Finally,numerical case-studies are performed to evaluate the accuracy and effectiveness of the proposed method.
维普
万方数据
