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阻尼式双调谐滤波器广泛应用在高压直流工程中,其阻尼电阻的选择关系到滤波器的滤波效果和直流系统的运行性能。首先通过比较不同阻尼电阻下的滤波器阻抗频率特性,分析了阻尼电阻对滤波效果的影响;然后以某±800 kV特高压直流输电工程交流滤波器设计为例,考核不同阻尼电阻下滤波器的性能和稳态定值;最后基于性能指标和稳态定值要求的考虑,总结了电阻优化选择的基本原则和规律,对提高滤波器设计的效率、减少盲目性具有一定的工程指导意义。
Damping double-tuned filters are widely used in high-voltage DC engineering, the choice of damping resistance is related to the filtering effect of filter and DC system performance. Firstly, the influence of damping resistance on the filter effect is analyzed by comparing the impedance frequency characteristics of the filters with different damping resistances. Then, taking an AC filter design for a ± 800 kV UHVDC transmission project as an example, the effects of different damping resistors Performance and steady-state setting. Finally, the basic principles and rules of resistance optimization selection are summarized based on the performance indexes and steady-state requirements. It has some engineering guiding significance to improve the efficiency of filter design and reduce the blindness.