| 基于振动分析法的变压器在线监测 |
| |
| 引用本文： | 傅坚,徐剑,陈柯良,王丰华,姜益民,金之俭. 基于振动分析法的变压器在线监测[J]. 华东电力, 2009, 37(7) |
| |
| 作者姓名： | 傅坚 徐剑 陈柯良 王丰华 姜益民 金之俭 |
| |
| 作者单位： | 上海市电力公司,超高压输变电公司,上海,200063;上海交通大学,上海,200030 |
| |
| 摘 要： | 研究了变压器的振动原理,提出了变压器振动简化模型,用最小二乘法对现场试验数据进行参数拟合,得到振动模型参数,可作为指纹参数,由任意时刻电压、电流幅值计算求得变压器振动幅值,根据与实际振动的比较,判断变压器是否故障,实践证明,该方法预估的变压器振动信号具有很高精确度,在变压器在线监测绕组与铁心状态中有良好的应用前景.
|
| 关 键 词： | 变压器 振动分析法 在线监测 最小二乘法 |
On-line transformer monitoring based on vibration analysis |
| |
| FU Jian,XU Jian,CHEN Ke-liang,WANG Feng-hua,JIANG Yi-min,JIN Zhi-jian. On-line transformer monitoring based on vibration analysis[J]. East China Electric Power, 2009, 37(7) |
| |
| Authors: | FU Jian XU Jian CHEN Ke-liang WANG Feng-hua JIANG Yi-min JIN Zhi-jian |
| |
| Affiliation: | 1.Extra High Voltage Power Transmission Company;SMEPC;Shanghai 200063;China;2.Shanghai Jiaotong Univ.;Shanghai 200062;China |
| |
| Abstract: | The vibration theory for transformers was analyzed,and the simplified transformer vibration model was proposed.The least-squares method was used for parameter fitting from field measured data to get the vibration model parameters as the fingerprint parameter to calculate the vibration amplitude from the voltage and current magnitudes at any time.The calculated amplitude was then compared with actual vibration amplitude to judge transformer faults.Practice showed that the predicted transformer vibration sign... |
| |
| Keywords: | transformer vibration analysis on-line monitoring least-squares method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
