区域水–能耦合系统的电–气–水混合潮流模型  

Hybrid Power-gas-water Flow Modeling for Regional Water-energy Nexus

作　　者：赵霞[1] 谭红 孙名轶 冯欣欣 ZHAO Xia;TAN Hong;SUN Mingyi;FENG Xinxin(State Key Laboratory of Power Transmission Equipment&System Security and New Technology(Chongqing University),Shapingba District,Chongqing 400044,China)

机构地区：[1]输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市沙坪坝区400044

出　　处：《电网技术》2020年第11期4274-4282,共9页Power System Technology

摘　　要：在综合能源系统的框架下,研究区域水-能耦合系统的混合潮流模型和计算方法。目前,仅有少量研究关注电-水混合潮流,而这些研究又存在耦合方式单一、电-水单向耦合的问题。为此,考虑燃气机组和电转气设备的耗水特性,提出一种估算电转气设备耗水量的方法;在此基础上,考虑燃气机组、电驱动压缩机、电转气设备、水泵、燃气锅炉和电锅炉等多种耦合设备和耦合方式,提出电-气-水混合潮流模型,并进一步提出区域水-能耦合系统的4种运行模式及其混合潮流计算方法。最后,用IEEE-33节点配电网、11节点配气网和13节点配水网耦合形成的区域水-能耦合系统为算例,验证了所提电-气-水混合潮流计算方法的有效性。This paper studies the hybrid power-water flow modeling of a regional water-energy nexus under the frame of the integrated energy system(IES).The existing studies on hybrid power-water flow are limited since only the one-way coupling is considered.To address this problem,this paper incorporates the water loss of both gas-fired units(GFU)and power-to-gas(P2G)facilities into the hybrid power-water flow analysis and thus proposes a method to estimate the water loss of the P2G.Based on this,a hybrid power-gas-water flow model is proposed considering the various coupling facilities including the GFU,electricity-driven compressor,P2G,pumps,gas-and electricity-fired boilers.Four operation modes of the water-energy nexus and the corresponding hybrid load analysis methods are further presented.Finally,a sample water-energy nexus consisting of the IEEE-33 power distribution system,the 11-node gas distribution system,and the 13-node water distribution system is used to verify the proposed hybrid load flow method.

关 键 词：综合能源系统 水-能耦合系统 电-气-水混合潮流 耦合设备 耗水量 

分 类 号：TM721[电气工程—电力系统及自动化]