应用于高压直流换流站的混合型有源滤波器工程设计方案的研究

Research on the Engineering Design Scheme of Hybrid Active Filter Applied to HVDC Converter Station

目前,几乎所有的LCC直流换流站滤波器均采用无源型式,但存在谐振风险、调谐点偏移等技术固有问题;有源滤波器具有快速动态补偿无功及谐波电流的能力,但极少应用于高压直流输电系统。本文针对混合型有源滤波器应用于高压直流换流站的工程实施方案,从电气主接线、设备选型等方面展开了介绍,并提出了技术经济性较优的布置方案。

At present,almost all LCC DC converter station filters are passive,but there are inherent technical problems such as resonance risk and tuning point offset.Active filters have the ability to compensate reactive and harmonic currents quickly and dynamically,but they are rarely used in HVDC transmission systems.In this paper,the engineering implementation scheme of hybrid active filter applied to HVDC converter station is introduced from the aspects of electrical main wiring,equipment selection,and the layout scheme with better technical and economic performance is put forward.