考虑关键故障筛选的电-气互联综合能源系统混合控制方法  

Hybrid Control of Integrated Power and Gas Energy Systems Based on Significant Contingency Screening

作　　者：梅建春[1] 卫志农[1] 张勇 马洲俊 陈胜[1] 孙国强[1] MEI Jianchun;WEI Zhinong;ZHANG Yong;MA Zhoujun;CHEN Sheng;SUN Guoqiang(College of Energy and Electrical Engineering,Hohai University,Nanjing 210098,Jiangsu Province,China;Nanjing Power Supply Company of State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 210019,Jiangsu Province,China)

机构地区：[1]河海大学能源与电气学院,江苏省南京市210098 [2]国网江苏省电力有限公司南京供电公司,江苏省南京市210019

出　　处：《电网技术》2019年第1期23-31,共9页Power System Technology

基　　金：国家自然科学基金项目(51877071);江苏省自然科学基金项目(BK20171433);国网江苏省电力有限公司科技项目(J2018066)~~

摘　　要：电网与气网耦合日益加深,分析电网或气网故障对电-气互联综合能源系统安全稳定运行的影响具有重要意义。在此背景下,计及电-气互联综合能源系统的互补特性,提出一种考虑关键故障筛选的混合控制方法。该方法为一种迭代算法:主问题针对预想故障集中的关键故障集,提出最优预防控制策略;子问题基于主问题控制策略,针对预想故障集中关键故障外的其他故障进行优化校正,并根据切负荷阈值筛选出其中关键故障添加至关键故障集。最后,以IEEE24节点电力系统和25节点天然气系统为算例,验证了所提算法的有效性。As the coupling of power system and natural gas system deepens increasingly,it is of great significance to analyze the effects of power system and natural gas system contingencies on security and stability of the integrated power and gas energy systems.In this context,considering complementarity of the integrated energy systems,a hybrid control method based on significant contingency screening is proposed.This method is an iterative algorithm and its main problem is to propose an optimal preventive control strategy in view of significant contingencies in a pre-specified contingency set.For the contingencies not considered in the pre-specified contingency set,the sub-problem is optimal calculation based on the control strategy of the main problem,and the contingencies violating threshold are added to the significant contingency set.Finally,IEEE 24-node power system and 25-node natural gas system are used as a study example to verify effectiveness of the proposed algorithm.

关 键 词：电-气互联综合能源系统 混合控制 关键故障筛选 切负荷 N-1安全约束 

分 类 号：TM73[电气工程—电力系统及自动化]