标题:
交直流互联系统滤波器故障状态下电磁暂态特性研究The Electromagnetic Transient Characteristic of an AC/DC Interconnected System with Filter Faults
作者:
陈品良, 张博, 杨帆, 崔浩, 李春莉
关键字:
直流输电, 滤波器, 电磁暂态, 故障DC Transmission; Filter; Electromagnetic Transient; Fault
期刊名称:
《Smart Grid》, Vol.2 No.4, 2012-12-13
摘要:
论文以CIGRE模型为基础，以向家坝–上海±800 kV特高压直流输电示范工程为目标，针对高压直流输电系统中产生的谐波成份，计算出交直流互联系统交流侧与直流侧的滤波器参数。根据得出的滤波器参数建立了交直流互联系统的电磁暂态仿真模型，仿真分析了滤波器正常状态下系统的电磁暂态特性，通过与系统实际的电磁暂态特性比较，验证了论文模型的正确性。在此基础上研究了滤波器故障时系统的电磁暂态特性的变化规律。论文的模型以及结果为特高压直流输电工程，特别是交直流互联系统的设计与分析提供了参考。
Based on the CIGRE model, Xiangjiaba-Shanghai ±800 kV UHV DC transmission demonstration project parameters as the background, according to the harmonic component generated in high voltage DC transmission system, parameters of the filters used are calculated. Comparison is carried out between the calculated transient characteristics and the real value when the filter are normal, and the accuracy of the model is verified. Finally the electromagnetic transient of the system with different filter faults is investigated. The model and the results provide a reference for ultra HVDC transmission project, especially for the design and analysis of the AC/DC interconnection system.