| 引用本文: | 刘柳,王丹,贾宏杰,王成山,王伟亮.综合能源配电系统运行域模型[J].电力自动化设备,2019,39(10): |
| LIU Liu,WANG Dan,JIA Hongjie,WANG Chengshan,WANG Weiliang.Operation region model for integrated energy distribution system[J].Electric Power Automation Equipment,2019,39(10): |
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| 摘要: |
| 综合能源配电系统(IEDS)是未来配电系统的一种可行发展形态，多能耦合在改善经济性、综合能效等方面的同时，也给系统的安全稳定运行带来诸多挑战。为研究系统的最大运行边界，基于电、气、热典型能源耦合的IEDS形态分析，提出IEDS运行域的概念与模型。考虑到能量枢纽(EH)的地理分隔与能源调控作用，将安装有自动化控制装置的EH输入侧联络线功率集合定义为工作点。进而以EH为调控手段，重点关注电压约束，提出运行域工作点电压边界遍历仿真求解算法。最后，以典型电-气耦合IEDS为例，求解不同观测变量构成的多种运行域，并进一步分析多能流约束、多能负荷变化以及热电比可调模式对运行域的影响。计算结果表明，所提方法可以准确描述系统的运行状态与可行边界，其结果可为调度人员提供一定的理论指导。 |
| 关键词: 综合能源配电系统 能量枢纽 运行域 多能流 运行约束 |
| DOI：10.16081/j.epae.201908001 |
| 分类号:TM73 |
| 基金项目:国家重点研发计划资助项目(2018YFB0905000)；国家杰出青年科学基金资助项目(51625702)；国家电网公司总部科技项目(SGTJDK00DWJS1800232)；分布式能源与微网国际联合实验室合作项目 |
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| Operation region model for integrated energy distribution system |
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LIU Liu, WANG Dan, JIA Hongjie, WANG Chengshan, WANG Weiliang
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Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
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| Abstract: |
| IEDS(Integrated Energy Distribution System) is a feasible development form of distribution power system in the future. Multi-energy coupling not only improves economy and comprehensive energy efficiency, but also brings challenges to the safe and stable operation of IEDS. To study the maximum operation boundaries of IEDS, based on the morphology analysis of typical electricity-gas-heat IEDS, the concept and model of IEDS-ORs(Integrated Energy Distribution System-Operation Regions) are proposed. Considering the geographical separation and energy regulation of EHs(Energy Hubs),the input power set of EHs’ tie-lines installed with automatic control devices is defined as the operational point. Furthermore, with the control means of EH, the voltage constraint is focused on. A traversal simulation algorithm for solving voltage boundaries of operational points in IEDS-OR is developed. Finally, taking a typical electricity-gas IEDS as an example, various operation regions composed of different observed variables are solved. Moreover, the effects of multi-energy flow constraints, multi-energy load changes and regulated heat-to-electric ratio modes on IEDS-ORs are analyzed. The calculative results show that the proposed method can accurately describe operation status and boundaries of IEDS, which can provide theoretical guidance for dispatchers. |
| Key words: integrated energy distribution system energy hub operation regions multi-energy flow operational constraints |
