中小型无刷励磁同步发电机组旋转整流桥二极管开路故障的在线检测方法
TM307; 针对中小型无刷励磁同步发电机组旋转整流桥二极管的单管开路故障问题,提出一种基于柔性线圈的诊断方法.以一台改造184 B型6.8 kW三相无刷励磁同步发电机组旋转整流桥的一个二极管发生开路故障为例,结合励磁机电枢绕组的空间布局及其感应电动势特点分析了旋转整流桥二极管的导通规律,根据二极管开路故障前后电枢磁场的变化特征,获取了电枢磁场增量磁势特征并确立了故障判据,提出在励磁机定子铁轭上包绕柔性线圈,通过柔性线圈感应电压的25 Hz转频分量检测和识别二极管开路故障.二维有限元仿真和样机实验结果表明,利用柔性线圈感应电压的25 Hz转频分量可以实现对旋转整流桥二极管开路故障的在线检测....
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| Published in | 电机与控制学报 Vol. 25; no. 5; pp. 42 - 51 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
华北电力大学 电气与电子工程学院,河北 保定071003%国网内蒙古东部电力有限公司电力科学研究院,呼和浩特010020
01.05.2021
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1007-449X |
| DOI | 10.15938/j.emc.2021.05.006 |
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| Abstract | TM307; 针对中小型无刷励磁同步发电机组旋转整流桥二极管的单管开路故障问题,提出一种基于柔性线圈的诊断方法.以一台改造184 B型6.8 kW三相无刷励磁同步发电机组旋转整流桥的一个二极管发生开路故障为例,结合励磁机电枢绕组的空间布局及其感应电动势特点分析了旋转整流桥二极管的导通规律,根据二极管开路故障前后电枢磁场的变化特征,获取了电枢磁场增量磁势特征并确立了故障判据,提出在励磁机定子铁轭上包绕柔性线圈,通过柔性线圈感应电压的25 Hz转频分量检测和识别二极管开路故障.二维有限元仿真和样机实验结果表明,利用柔性线圈感应电压的25 Hz转频分量可以实现对旋转整流桥二极管开路故障的在线检测. |
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| AbstractList | TM307; 针对中小型无刷励磁同步发电机组旋转整流桥二极管的单管开路故障问题,提出一种基于柔性线圈的诊断方法.以一台改造184 B型6.8 kW三相无刷励磁同步发电机组旋转整流桥的一个二极管发生开路故障为例,结合励磁机电枢绕组的空间布局及其感应电动势特点分析了旋转整流桥二极管的导通规律,根据二极管开路故障前后电枢磁场的变化特征,获取了电枢磁场增量磁势特征并确立了故障判据,提出在励磁机定子铁轭上包绕柔性线圈,通过柔性线圈感应电压的25 Hz转频分量检测和识别二极管开路故障.二维有限元仿真和样机实验结果表明,利用柔性线圈感应电压的25 Hz转频分量可以实现对旋转整流桥二极管开路故障的在线检测. |
| Author | 庞永林 侯旭辰 武玉才 |
| AuthorAffiliation | 华北电力大学 电气与电子工程学院,河北 保定071003%国网内蒙古东部电力有限公司电力科学研究院,呼和浩特010020 |
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| Author_FL | HOU Xu-chen PANG Yong-lin WU Yu-cai |
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| DocumentTitle_FL | On-line detection method for rotating rectifier bridge diode open-circuit fault of small and medium-sized brushless excitation synchronous generator set |
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| Keywords | 旋转整流桥 中小型无刷励磁同步发电机组 在线检测 开路故障 柔性线圈 二极管 |
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| Publisher | 华北电力大学 电气与电子工程学院,河北 保定071003%国网内蒙古东部电力有限公司电力科学研究院,呼和浩特010020 |
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| Title | 中小型无刷励磁同步发电机组旋转整流桥二极管开路故障的在线检测方法 |
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