极端温度条件下电子式电流互感器采集卡电磁抗扰度性能的实验研究Experiment Research of Ambient Temperature on Electromagnetic Compatibility Performance of Electronic Current Transformer Acquisition Card
赵鹏;赵明敏;刘冠辰;郑志超;杨志超;陈恒林;
摘要(Abstract):
随着电网电压等级的增高,变电站趋于智能化、紧凑化,变电站内电磁环境也愈加复杂,尤其是放置在一次侧的电子式互感器采集卡,不仅受到电磁干扰的影响,还经受着恶劣的自然环境考验。温度等外部环境变量对电子式互感器采集卡的电磁兼容性能有着一定的影响,而现有的国际、国家标准中,对电磁兼容性能和环境可靠性的测试是分别进行的,并未考核其共同作用下的影响。这使得电子式互感器采集卡在智能变电站中的实际工况模拟不够充分,造成投入运行的电子式互感器采集卡可靠性不高,影响先进技术的推广应用。因此,对极端环境温度下互感器采集卡的电磁兼容性能的试验研究十分有必要,以确定电子式互感器采集卡在不同温度作用下的电磁抗扰度变化规律。应用半导体器件原理分析了温度对电子和电路的影响机理,进而以电快速瞬变脉冲群为干扰源设计了测试方案,研究了不同环境温度条件下电子式电流互感器采集卡的电磁抗扰度性能,分析了电子式电流互感器采集卡的输出波形,所获得的输出波形规律验证了推断。
关键词(KeyWords): 电子式互感器;环境温度;电磁兼容;智能电网
基金项目(Foundation): 国家电网公司科技项目(GYB17201700325):“智能设备高可靠性设计与防护技术研究”~~
作者(Author): 赵鹏;赵明敏;刘冠辰;郑志超;杨志超;陈恒林;
Email:
DOI: 10.13335/j.1000-3673.pst.2019.1511
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