| 高频脉冲方波局部放电特征参量比较的研究 |
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| 引用本文： | 刘曦,吴广宁,佟来生,高波,邓桃.高频脉冲方波局部放电特征参量比较的研究[J].电气应用,2007,26(1):61-64. |
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| 作者姓名： | 刘曦 吴广宁 佟来生 高波 邓桃 |
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| 作者单位： | 西南交通大学电气工程学院,610031;西南交通大学电气工程学院,610031;西南交通大学电气工程学院,610031;西南交通大学电气工程学院,610031;西南交通大学电气工程学院,610031 |
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| 基金项目： | 国家自然科学基金
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霍英东教育基金
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教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 局部放电是导致变频电机绝缘过早损坏的主要原因之一.本文研究了在高频脉冲方波条件下,脉冲方波幅值和温度的变化对局部放电特征参量的影响.对相同外界条件下的脉冲方波局部放电特征参量与工频局部放电特征参量进行了对比分析,结果表明高频脉冲方波局部放电对绝缘材料的破坏性远大于工频局部放电的破坏性.
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| 关 键 词： | 变频电机 绝缘 方波 局部放电 |
| 修稿时间： | 2006年2月28日 |
Study on the Comparison of Characteristic Parameters of Partial Discharge under a Sequence of High-Frequency Square Voltage |
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| Liu Xi.Study on the Comparison of Characteristic Parameters of Partial Discharge under a Sequence of High-Frequency Square Voltage[J].Electrotechnical Application,2007,26(1):61-64. |
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| Authors: | Liu Xi |
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| Affiliation: | Southwest Jiaotong University |
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| Abstract: | Partial discharge (PD) under a Sequence of high-frequency impulse is one of key factors which lead to premature failure of inverter-fed motors. In this paper,some parameters of PD is statisticed based on measurement results. Influence of impulse voltage and temperature on parameters of PD is discussed separately. The comparison of characteristic parameters of partial discharge under square with alternating current (AC) under the same condition are also discussed,it shows that destructive effect of PD under square is far more than under AC. They benefit for studying the destructive effect of PD on insulation under a sequence of high-frequency impulse. |
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| Keywords: | inverter-fed motor insulation square partial discharge |
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