40.5kV智能C-GIS开关柜设计与绝缘分析

发布时间：2018-02-19 23:36

本文关键词： C-GIS 氮气三工位开关 CAN总线　出处：《沈阳工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：C-GIS(Cubicle type Gas Insulated Switchgear柜式气体绝缘金属封闭开关设备)是GIS(Gas Insulated Switchgear气体绝缘金属封闭开关设备)技术与常规开关柜技术相结合而衍生出的成套电器。因其具有柜体节约空间,可靠性高,环境污染小,免维护及安装方便等优点,在中压电网配电系统中得到广泛的应用。随着全社会环保意识不断增强,环境友好型电网设备也在逐步普及。SF6气体因其温室效应使得其在电气设备领域的应用存在局限性。与此同时,随着能源互联网的发展,智能化电网对电气装备的技术参数、可靠性与运维环保性提出了更高的要求。为解决电气装备用绝缘介质的环保化的同时改进产品绝缘与运行特性,满足电网运行的需求,本文开展了传统C-GIS设备SF6替代气体开关设备的绝缘结构及其监测系统研究。传统C-GIS主要结构有灭弧室,操动机构,三工位开关,母线和柜体等部分,本文以传统C-GIS灭弧系统结构改进设计以及开关柜设备智能化、网络化的工程应用需求为技术路线,进行了深入研究。提出利用具有环境友好特性的氮气替代SF6充气柜绝缘介质的C-GIS设计方案,并对开关柜灭弧系统结构进行了静电场有限元分析,使其满足绝缘标准要求,解决设备环保化与绝缘可靠性之间的矛盾。自主设计了三工位开关本体结构,并对其进行静电场有限元分析。通过引入CAN总线技术,提出一种开放式多硬件兼容的开关柜智能化系统,其良好的兼容性和透明性从系统层面实现了智能化开关柜设备内部信息通信与网络化管理。此外,基于MATLAB平台,提出了并行求解静电场有限元电场分析软件平台,并对断路器气室和三工位开关进行绝缘设计与验证分析;使用CANoe软件平台,自主搭建并测试智能化C-GIS的CAN总线系统,从系统层面为智能化设备网络管理和信息通讯提供了参考方案。
[Abstract]:C-GIS-Cubicle type Gas Insulated Switchgear gas insulated metal closed switchgear) is a set of electrical appliances derived from the combination of GIS(Gas Insulated Switchgear gas insulated metal closed switchgear and conventional switchgear technology. Environmental pollution is small, maintenance-free and easy to install, and so on, it has been widely used in the distribution system of medium voltage power grid. With the increasing awareness of environmental protection in the whole society, Environmental friendly power grid equipment is also gradually popularizing .SF6 gas, because of its Greenhouse Effect, its application in the field of electrical equipment has limitations. At the same time, with the development of the energy Internet, the technical parameters of intelligent power grid to electrical equipment, In order to solve the problem of environmental protection of insulation medium used in electrical equipment and improve the insulation and operation characteristics of products, it is necessary to meet the requirements of power grid operation. In this paper, the insulation structure and its monitoring system of SF6 substitute gas switch equipment for traditional C-GIS equipment are studied. The main structures of traditional C-GIS equipment include interrupter, operating mechanism, three-station switch, busbar and cabinet, etc. This paper takes the structure improvement design of traditional C-GIS arc-extinguishing system and the engineering application demand of intelligent and networked switchgear as the technical route. This paper puts forward a C-GIS design scheme to replace the insulating medium of SF6 inflatable cabinet by nitrogen with environment-friendly characteristics. The structure of the arc-extinguishing system of switchgear is analyzed by electrostatic field finite element analysis to make it meet the requirements of insulation standard. In order to solve the contradiction between environmental protection and insulation reliability, the structure of three-position switch is designed and analyzed by electrostatic field finite element method. The CAN bus technology is introduced. This paper presents an open and multi-hardware compatible intelligent switchgear system. Its good compatibility and transparency realize the information communication and network management of the intelligent switchgear equipment from the system level. In addition, based on the MATLAB platform, the intelligent switchgear system is developed. In this paper, a software platform for electric field analysis using finite element method to solve electrostatic field in parallel is put forward, and insulation design and verification analysis of gas chamber and three-position switch of circuit breaker are carried out, and the intelligent C-GIS CAN bus system is built and tested independently by using CANoe software platform. It provides a reference scheme for intelligent equipment network management and information communication from the system level.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM591

【参考文献】