基于RTDS的电弧接地故障自定义建模及仿真分析  

User defined modeling and simulation of arc grounding fault based on RTDS

作　　者：杨柳林[1] 李德奎[2] 陈延明[1] 阳育德[2] 

机构地区：[1]广西大学电气工程学院,广西南宁530004 [2]广西电力系统最优化与节能技术重点实验室(广西大学),广西南宁530004

出　　处：《电力系统保护与控制》2016年第16期137-142,共6页Power System Protection and Control

基　　金：国家自然科学基金项目(51567004)~~

摘　　要：电弧接地故障建模仿真对于电气设备的研制和电力系统安全运行的分析具有重要意义。基于实时数字仿真仪(RTDS)平台对电弧接地故障进行建模仿真。对Cassie电弧的连续系统数学模型进行数值逼近,将其转换成离散系统数值递推模型;在RTDS的CBuilder开发环境中创建了可控的Cassie电弧元件模型。通过与Matlab标准模型的测试对比实验,以及电力系统的中性点不接地系统的单相电弧接地故障应用实验,验证了自建元件模型的正确性和有效性。所建电弧模型填补了RTDS仿真模型的空白,采用的建模方法具有普适性,为类似的研究提供参考借鉴。研究成果可以应用于电力系统实时电弧故障仿真以及继电保护设备的实时闭环混合仿真检测。The fault arc simulation and modeling is very important for the development of electrical equipment and the virtual analysis of power system operation. This paper studies the arc grounding fault modeling simulation based on real time digital simulator（RTDS）. The mathematical model of the continuous system of Cassie arc is numerically approximated and converted into a numerical recursive model of the discrete system; a controllable Cassie arc element model is created in the RTDS＇s CBuilder development environment. Through comparison with MATLAB standard model and experimental testing, as well as the neutral ungrounded system of single-phase arc grounding fault application experiments, the correctness and validity of the self-element model is validated. The arc model built in this paper fills the gap of RTDS simulation model, the method of modeling is universal, and it provides reference for similar research. The research results can be used in real-time arc fault simulation of power system and real time closed loop hybrid simulation of relay protection equipments.

关 键 词：RTDS CBuilder 电力系统 电弧接地故障 Cassie电弧 仿真 用户自定义元件模型 

分 类 号：TM862[电气工程—高电压与绝缘技术]