基于灵敏度分析的电-气-热综合能源系统安全控制策略  

Security control strategy for electric-gas-thermal integrated energy system based on sensitivity analysis

作　　者：郭峥旭 GUO Zhengxu(School of Electrical Engineering,Northeast Electric Power University,Jilin 132012,China)

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012

出　　处：《电气应用》2024年第7期46-57,共12页Electrotechnical Application

摘　　要：基于电-气-热综合能源系统的灵敏度参数,研究了电-气-热综合能源系统的交互耦合机理和运行安全性,并提出了改善综合能源系统安全状态的调控措施。首先分别建立了电-气-热综合能源系统中各子系统模型,同时建立了能源集线器模型,将各能源子系统进行耦合;然后采用分步求解法计算综合能源系统多能流,并识别安全越限节点。在此基础上,采用灵敏度分析方法,找出可最大幅度改善越限节点状态量的调控节点。进一步提出改善电-气-热综合能源系统运行安全性的控制策略。最后通过算例对提出的灵敏度分析方法及安全策略进行分析验证,证明了其正确性和有效性。This article is based on the sensitivity parameters of the electric gas thermal integrated energy system,and studies the interaction coupling mechanism and operational safety of the electric gas thermal integrated energy system.It also proposes control measures to improve the safety status of the integrated energy system.Firstly,establish models for each subsystem in the integrated energy system of electricity,gas,and heat,and at the same time,establish an energy hub model to couple each energy subsystem;Then,the step-by-step solution method is used to calculate the multi energy flow of the comprehensive energy system,and to identify the safety exceeding limit nodes.On this basis,sensitivity analysis method is adopted to identify the control nodes that can greatly improve the state quantity of out of limit nodes.Furthermore,propose control strategies to improve the operational safety of the electric gas thermal integrated energy system.Finally,the proposed sensitivity analysis method and security strategy were analyzed and validated through numerical examples,and the results proved their correctness and effectiveness.

关 键 词：综合能源系统 能源集线器 分步求解法 灵敏度分析法 

分 类 号：TK01[动力工程及工程热物理] TM73[电气工程—电力系统及自动化]