基于等效瞬时电感参数辨识的变压器励磁涌流判别方法
TM772; 利用变压器空投后5 ms的原边数据对变压器等效瞬时电感进行参数辨识,根据空投时正常变压器磁通未饱和前等效瞬时电感较大而故障变压器等效瞬时电感较小这一特征构成变压器保护原理,并提出了保护判据,即等效瞬时电感辨识值小于整定值时判定为变压器空投于内部故障,否则判定为正常空投.该方法无需知道空投变压器副边电压数据,充分考虑了现场运行中变压器空投时副边数据不易获取的实际情况.EMTP数字仿真与动模试验结果表明了该方法的正确性与有效性....
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| Published in | 电力系统保护与控制 Vol. 38; no. 20; pp. 12 - 16 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆,400044%输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆,400044
2010
重庆新世纪电气有限公司,重庆,400030%重庆新世纪电气有限公司,重庆,400030 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-3415 |
| DOI | 10.3969/j.issn.1674-3415.2010.20.003 |
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| Abstract | TM772; 利用变压器空投后5 ms的原边数据对变压器等效瞬时电感进行参数辨识,根据空投时正常变压器磁通未饱和前等效瞬时电感较大而故障变压器等效瞬时电感较小这一特征构成变压器保护原理,并提出了保护判据,即等效瞬时电感辨识值小于整定值时判定为变压器空投于内部故障,否则判定为正常空投.该方法无需知道空投变压器副边电压数据,充分考虑了现场运行中变压器空投时副边数据不易获取的实际情况.EMTP数字仿真与动模试验结果表明了该方法的正确性与有效性. |
|---|---|
| AbstractList | TM772; 利用变压器空投后5 ms的原边数据对变压器等效瞬时电感进行参数辨识,根据空投时正常变压器磁通未饱和前等效瞬时电感较大而故障变压器等效瞬时电感较小这一特征构成变压器保护原理,并提出了保护判据,即等效瞬时电感辨识值小于整定值时判定为变压器空投于内部故障,否则判定为正常空投.该方法无需知道空投变压器副边电压数据,充分考虑了现场运行中变压器空投时副边数据不易获取的实际情况.EMTP数字仿真与动模试验结果表明了该方法的正确性与有效性. |
| Author | 朱可 张太勤 姜杰 |
| AuthorAffiliation | 输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆,400044%输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆,400044;重庆新世纪电气有限公司,重庆,400030%重庆新世纪电气有限公司,重庆,400030 |
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| Author_FL | JIANG Jie ZHANG Tai-qin ZHU Ke |
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| Keywords | 变压器 内部故障 励磁涌流 等效瞬时电感 参数辨识 |
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| Title | 基于等效瞬时电感参数辨识的变压器励磁涌流判别方法 |
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