电-气互联综合能源系统安全分析与优化控制研究综述

Review on security analysis and optimal control of electricity-gas integrated energy system

综合能源系统为提高能源利用效率、多能互补及构建低碳可持续能源系统奠定了基础,然而值得注意的是,深度耦合的多能源系统亦面临着不可忽视的运行风险,尤其当耦合系统之间缺乏有效的协同安全控制策略。鉴于此,综述了电-气互联综合能源系统安全分析与优化控制研究,介绍了电-气互联综合能源系统稳态与暂态潮流模型,包括非线性、线性及凸松弛模型;介绍了电-气互联综合能源系统安全分析研究,包括状态估计、安全评估、可靠性分析及韧性分析;介绍了电-气互联综合能源系统优化控制研究,提出了多时段滚动预防与校正控制模型;展望了电-气互联综合能源系统安全分析与优化控制未来可深入研究的方向。

Integrated energy system positively contributes to the improved energy utilization efficiency,multienergy complement,and the construction of a low-carbon sustainable energy system.However,it is notable that the deep interdependency among multiple energy systems creates significant operational risks.As such,the research on security analysis and optimal control of electricity-gas integrated energy system is reviewed.The steady-state and transient energy flow models of electricity-gas integrated energy system are introduced,which includes the exact nonlinear,linear,and convex models.Then,the security analysis of electricity-gas integrated energy system is introduced,in which the state estimation,security assessment,reliability analysis,and resilience analysis are discussed.Subsequently,the optimal control model of electricitygas integrated energy system is introduced,in which the multi-period optimal preventive and corrective models are proposed.Finally,the promising research directions on security analysis and optimal control of electricity-gas integrated energy system are summarized.