【作者】 张黎； 王伟； 李庆民； 李清泉；

【Author】 ZHANG Li WANG Wei, LI Qing-min, LI Qing-quan (School of Electrical Engineering, Shandong University, Jinan 250061, China)

【机构】 山东大学电气工程学院；

【摘要】 大容量FACTS设备在现代高压变电站中的广泛应用,将产生大量的宽带电磁干扰,对电网和环境造成严重的电磁污染,甚至威胁到其本身乃至附近二次电子设备的正常工作。在安装新型静态无功补偿器(SVC)的变电站,其电磁兼容环境需要重新评估,以提出足够的电磁抗扰性措施。为此,本文应用高频电压电流探头和光纤传输等技术,对安装SVC的变电站进行了现场传导干扰的测试。基于SVC基本结构,以实测波形为依据,并考虑到传感器的幅频特性,本文建立了SVC传导干扰的仿真模型,并对传导干扰机制进行了初步分析。更多还原

【Abstract】 Wide applications of large capacity FACTS equipment within nowadays HV substations result in large amount of broadband electromagnetic emissions, which brings EM contamination to power grids and the environment, and even causes self-malfunction or unaccepted response of victim devices positioned nearby. The electromagnetic compatible environments in substations installed with new SVC devices need to be re-evaluated, to provide sufficient immunity measures. High-frequency voltage/current probes and optical fibre transmission techniques were used for on-site measurements at SVC-based substations. Based on the fundamental structure of SVC and measured field data , this paper establishes a simulation model for conducted interference of SVC with consideration of the non-flat amplitude-frequency characteristics of the probes and a preliminary analysis is also carried out on the causes of SVC-based EMI.更多还原