中国电机工程学报2017，Vol.37Issue(10)：3019-3027,9.DOI:10.13334/j.0258-8013.pcsee.160989
考虑吸收能量估算的金属氧化物避雷器模型准确性分析
Accuracy Analysis of Metal-Oxide Arrester Simulation Models Considering the Energy Absorption Estimation Under Impulse Currents With Different Steepness
何雨微 1司文荣 2魏本刚 2夏海亮 1傅正财1
作者信息
- 1. 电力传输与功率变换控制教育部重点实验室(上海交通大学),上海市徐汇区200030
- 2. 国网上海市电力公司电力科学研究院,上海市虹口区200437
- 折叠
摘要
Abstract
In order to investigate the accuracy of metal-oxide arrester (MOA) simulation models for evaluating the energy absorbed in MOA,the non-linear resistance model and frequency-dependent models,including IEEE model,Pinceti model and Fernandez model,were adopted to evaluate the residual voltages and energy absorption in metal-oxide varistors (MOVs).Three types of impulse currents,including standard 8/20μs lightning current,switching current of 30/60μs,and steep current with front time about 1μs,were considered in the analysis.Then the simulation results were compared with the experimentally measured results.It is shown that the IEEE model could evaluate the residual voltages on low-voltage MOVs accurately,while the Pinceti model could only be used under 8/20μs current.As for the evaluation of the energy absorption in MOVs used for transmission and distribution arresters,only the non-linear resistance model and Fernandez model have high accuracy under 8/20μs current.However,the non-linear resistance model is more accurate in evaluating the energy absorption in low-voltage MOVs than the frequency-dependent models.As for evaluating the energy absorption in high-voltage MOVs,the optimization parameters for non-linear resistance A0 and A1 in frequency-dependent models are necessary.关键词
金属氧化物避雷器动态模型/非线性电阻模型/吸收能量/残压/冲击电流Key words
metal-oxide arrester (MOA) frequency-dependent model/non-linear resistance model/energy absorption/residual voltage/impulse current分类
信息技术与安全科学引用本文复制引用
何雨微,司文荣,魏本刚,夏海亮,傅正财..考虑吸收能量估算的金属氧化物避雷器模型准确性分析[J].中国电机工程学报,2017,37(10):3019-3027,9.
