Abstract With the remarkable growth of natural gas consumption and the development of renewable energy worldwide in recent years, the penetration capacity of gas-fired generators and uncertain renewable energy has significantly become larger, which poses a great challenge to the reliable and economic operation of the gas–electricity interconnected system. This paper proposes an interval optimization based coordination scheduling model for the gas–electricity coupled system considering the dynamic characteristics of natural gas flow, wind power integration and demand response management. By introducing the arithmetic and order relation of interval numbers, the objective function and corresponding constraints for the interval-based dispatch model can be converted into the deterministic expressions with degrees of pessimism, then the proposed model can be solved in the master-subproblem framework. On this basis, two case studies are implemented on the 6-bus power system integrated with 6-node natural gas system and the modified IEEE 118-bus system with 10-node natural gas system to investigate the impact of gas flow dynamic process, demand response management, wind power uncertainty on the scheduling solution of the coupled systems. Moreover, the scenario-based stochastic optimization and robust optimization methods are carried out for comparison. Simulation results demonstrate the effectiveness of the proposed interval optimization method.

中文翻译：

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考虑风电不确定性、天然气流量动态过程和需求响应管理的基于区间优化的气电耦合系统协调调度

摘要 随着近年来世界范围内天然气消费量的显着增长和可再生能源的发展，燃气发电机组的渗透能力和不确定性可再生能源显着变大，这对能源的可靠经济运行提出了巨大挑战。气电互联系统。考虑到天然气流动、风电并网和需求响应管理的动态特性，提出了一种基于区间优化的气电耦合系统协调调度模型。通过引入区间数的算术和阶数关系，可以将基于区间的调度模型的目标函数和相应的约束转化为具有悲观度的确定性表达式，那么提出的模型可以在主子问题框架中解决。在此基础上，分别对集成6节点天然气系统的6母线电力系统和带有10节点天然气系统的改良IEEE 118母线系统进行了两个案例研究，研究了气流动态过程、需求响应管理，风电不确定性对耦合系统调度解决方案的影响。此外，还进行了基于场景的随机优化和鲁棒优化方法进行比较。仿真结果证明了所提出的区间优化方法的有效性。在 6 节点天然气系统集成的 6 总线电力系统和带有 10 节点天然气系统的改进 IEEE 118 总线系统上实施了两个案例研究，以研究气流动态过程、需求响应管理、风能的影响耦合系统调度解的功率不确定性。此外，还进行了基于场景的随机优化和鲁棒优化方法进行比较。仿真结果证明了所提出的区间优化方法的有效性。在 6 节点天然气系统集成的 6 总线电力系统和带有 10 节点天然气系统的改进 IEEE 118 总线系统上实施了两个案例研究，以研究气流动态过程、需求响应管理、风能的影响耦合系统调度解的功率不确定性。此外，还进行了基于场景的随机优化和鲁棒优化方法进行比较。仿真结果证明了所提出的区间优化方法的有效性。