云广±800kV直流输电工程交流滤波器设计关键问题研究

Study on the Key Issues of AC Filter Design for Yunnan-Guangdong ±800 kV DC Transmission Project

介绍了直流输电工程交流滤波器性能和定值计算原理和模型,以云广±800kV直流输电工程楚雄换流站为例,研究交流滤波器设计的关键问题,包括孤岛运行方式谐波阻抗对低次谐波的影响。利用自主开发的DCDP软件进行了性能和定值计算,并提出了能同时满足并联运行方式和孤岛运行方式的交流滤波器配置方案。

Introducing the principles and models of HVDC AC filter＇s performance and rating calculation, and taking Chuxiong converter station of Yunnan-Guangdong ±800 kV DC project as an example, this paper studies the key issues of the AC filter design, including the effect of the harmonic impedance from the converter facilities in islanding operation mode on low harmonics. With DCDP software, a program developed by ourselves, the calculations of performance and rating value are carried out, and a scheme for AC filter deployment content with both parallel and islanding operation modes is proposed.