一种氧化锌非线性灭磁电阻安全性评估新方法A New Method for Safety Evaluation of ZnO Non-linear De-excitation Resistor
吴跨宇,陆海清,卢岑岑
WU Kuayu,LU Haiqing,LU Cencen
摘要(Abstract)：
分析了ZnO非线性灭磁电阻的特性,在机组特定灭磁电阻配置方式下,仿真计算获得标准规定的空载误强励和定子短路2种严重故障工况时的最大灭磁能量,并以现场检测压敏电压参数为依据,推演定义了ZnO灭磁电阻压敏电压安全性临界值,由此提出了一种判定个别ZnO灭磁电阻组件压敏电压变化后的组件安全性计算评估新方法。
The paper analyzes characteristics of ZnO non-linear de-excitation resistor. Under special configuration mode of de-excitation resistor in generating set, the maximum de-excitation energy specified by standard is achieved by simulation calculation under two operating condition of serious faults like no-load fault forcing excitation and stator short-circuit. Also, in accordance with field detected varistor voltage parameters the paper defines a critical value of varistor voltage safety of ZnO de-excitation resistor, and it hence proposes a new method for component safety calculation and evaluation after varistor voltage of ZnO de-excitation resistor component alters.
关键词(KeyWords)：
ZnO电阻;压敏电压;灭磁能量;组件;安全性
ZnO resistor;varistor voltage;de-excitation energy;component;safety
基金项目(Foundation):
作者(Author):
吴跨宇,陆海清,卢岑岑
WU Kuayu,LU Haiqing,LU Cencen
DOI: 10.19585/j.zjdl.2015.03.008
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