新一代智能变电站平面布置优化设计

新一代智能变电站的建设目标是“系统高度集成、结构布局合理、装备先进适用、经济节能环保、支撑调控一体”,为智能变电站建设的各个环节提出了新的要求.电气总平面布置是变电站设计的重要内容之一,是体现变电站“结构布局合理”的重要方面.结合工程建设实际情况,梳理了电气总平面布置优化的思路,整理、归纳影响配电装置布置及电气总平面布置的因素,在电气主接线优化,集成式智能设备研制,集装箱式建筑物应用等新设备、新技术应用的基础上,以通用设计典型方案为边界条件提出优化设计方案,并与目前智能变电站进行技术比较和分析,提出220 kV户外AIS、GIS,110 kV户外AIS、GIS这4种新一代智能变电站平面布置的优化方向.

Layout Optimization Design of New Generation Smart Substation

The construction objectives of new generation of smart substation, which are ＂highly integrated system, reasonable structure and layout, advanced and applicable equipment, economical, energy saving and environmental protection, support of integrated control＂, put forward new requirements for all aspects of smart substation construction. The general layout of electrical system is one of the important contents of substation design, which can significantly reflect the reasonable structure and layout of substation. Combined with the actual situation of engineering construction, this paper collated the ideas of general layout optimization of the electrical system, organized and summarized the influence factors of the layout of power distribution unit and electrical system. Based on the applications of the new equipments and techniques, such as the optimization of the main electrical wiring, the integrated smart devices, and container type building, this paper proposed the optimization design scheme with taking the typical schemes in general design as boundary conditions, and technically compared the scheme with current smart substation. Finally, the direction of layout optimization for four types of new smart substations was proposed, including 220 kV outdoor air insulated switchgear （AIS）, 220 kV outdoor gas insulated switchgear （GIS）, and 110 kV outdoor AIS, GIS.