| 晃电故障下交流接触器的工作特性分析 |
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| 引用本文： | 林抒毅,许志红. 晃电故障下交流接触器的工作特性分析[J]. 中国电机工程学报, 2011, 31(24) |
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| 作者姓名： | 林抒毅 许志红 |
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| 作者单位： | 福州大学电气工程与自动化学院,福建省福州市,350108 |
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| 基金项目： | 福建省自然科学基金项目(2011J01295)~~ |
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| 摘 要： | 电磁式交流接触器是一种应用广泛的低压电器产品，当晃电故障发生时，交流接触器可能因为不稳定电压而频繁接通或分断，对系统造成很大的影响。论文以CJ20．63A交流接触器为研究对象，建立考虑触头运动情况的电磁机构吸合过程、吸持阶段以及释放过程的磁路动态计算方程，并通过实验验证了模型的正确性。针对不同的合闸相角和工作状态进行仿真，分析了发生晃电故障时电压下降幅度、晃电故障持续时间、晃电故障发生时刻及电压相角变化对接触器工作特性的影响。结果表明，吸合阶段的晃电影响与吸合时问有直接关系，吸合以后的晃电故障影响存在临界时间的问题，为进一步研制抗晃电智能交流接触器奠定了相关基础。
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| 关 键 词： | 晃电 交流接触器 工作特性 触头弹跳 |
Performance Characteristics of AC Contactor During Voltage Sag |
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| LIN Shuyi,XU Zhihong. Performance Characteristics of AC Contactor During Voltage Sag[J]. Proceedings of the CSEE, 2011, 31(24) |
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| Authors: | LIN Shuyi XU Zhihong |
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| Affiliation: | LIN Shuyi,XU Zhihong(School of Electrical Engineering,Fuzhou University,Fuzhou 350108,Fujian Province,China) |
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| Abstract: | Electromagnetic contactor is a kind of widely used electric product.When the voltage drops suddenly,the contactor will be open or closed frequently,and the circuit will be influenced seriously.Based on the research of CJ20-63A contactor dynamic equations were established during closing,closed and opening processes;the movement process of the moving contact and the bounce of the contacts were considered at the meantime.The experimental data shows the model is correct.Simulations were carried out with respect... |
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| Keywords: | voltage sag AC contactor performance characteristic bounce of the contacts |
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