面向能源互联网的电–气耦合网络状态估计技术.PDFVIP

42 卷 2 期 电 网 技 术 Vol. 42 No. 2 20 18 年2 月 Power System Technology Feb. 20 18 文章编号：1000-3673 （20 18）02-0400-09 中图分类号：TM 72 1 文献标志码：A 学科代码：470 40 面向能源互联网的电 气耦合网络状态估计技术 董今妮，孙宏斌，郭庆来，盛同天，乔铮 （电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系) ，北京市 海淀区 100084 ） State Estimation of Combined Electric-Gas Networks for Energy Internet DONG Jinni, SUN Hongbin, GUO Qinglai, SHENG Tongtian, QIAO Zheng (State Key Lab of Control and Simulation of Power Systems and Generation Equipments (Dept. of Electrical Engineering, Tsinghua University), Haidian District, Beijing 100084, China) ABSTRACT: Energy management system are widely adopted 负面影响已越来越难以忽视。在环境方面，2012 年， in traditional power system to ensure its security, reliability and 空气污染造成的损失成本占GDP 的3.8%；在能源 efficiency. Similarly, energy management system also needs to 生产方面，中国人均能源资源拥有量还不到世界平 be used in combined electric-gas networks. State estimation for 均水平的一半，而与此同时，大量弃风、弃光等行 combined electric-gas networks is the basis of their energy 为造成了能源的极大浪费；另一方面，在能源消费 management system. In this paper, in aspect of state estimation 上，中国单位GDP 的能耗是世界平均水平的2.5 倍。 for gas network, steady model for complex gas network was 能源生产的低效和能源消费的高能耗造成了环境 established, considering characteristics of compressor and regulator. State estimation considering coupling components 问题、能源短缺和经济压力。因此为解决在能源 was established for combined electric-gas networks. This paper 和环境上的问题， 然要提高能源生产的效率，降 tested accuracy and bad data identification performance for 低能源消费的能耗，以及提高可再生能源的利用 combined state estimation. 率。而这也是能源互联网发展的动因之一。另一方 KEY WORDS: combined electric-gas networks; state 面，国家相关政策也