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面向区域综合能源系统的安全域模型
刘柳, 王丹, 贾宏杰, 李思源
天津大学 智能电网教育部重点实验室,天津 300072
摘要:
区域综合能源系统(RIES)中自动化水平的提高为故障后的负荷转带奠定了基础,基于N-1安全准则的系统安全边界有待研究。针对以能量枢纽(EH)为多能供应源的RIES,提出了RIES安全域概念与模型;分析了RIES的N-1安全性校验方法,包括EH关键设备N-1安全性校验与EH关键管线出口N-1安全性校验;基于系统最大供能能力工作点,提出了安全边界仿真拟合计算方法,实现了安全域的降维观测;结合算例验证了所提模型的有效性,并讨论了系统的供能能力、安全状态与安全边界距离。
关键词:  区域综合能源系统  能量枢纽  安全域  N-1安全性校验  最大供能能力
DOI:10.16081/j.epae.201908029
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
Security region model for regional integrated energy system
LIU Liu, WANG Dan, JIA Hongjie, LI Siyuan
Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
Abstract:
The automation level of RIES(Regional Integrated Energy System) has improved rapidly, which lays a foundation for load transfer after faults, so the system security boundaries based on the N-1 security guideline need to be further researched. For RIES with EH(Energy Hub) as multi-energy supply source, the concept and model of RIES-SR(Regional Integrated Energy System Security Region) are proposed. The N-1 security test method of RIES is analyzed, including EH key equipment N-1 security test and EH N-1 key pipeline output security test. Then, a simulation fitting calculation method for security boundaries is proposed based on the total supply capability point, which can realize dimension reduction observation of security boundaries. The effectiveness of the proposed model is verified by a case study, where the energy supply capability, security state and security boundary distance are discussed.
Key words:  regional integrated energy system  energy hub  security region  N-1 security test  total supply capability

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