天广直流输电系统直流站控设计缺陷分析

天广直流输电系统采用直流站控系统根据交流电压、直流负荷和系统无功状况自动控制交流滤波器的投退，以提供换流所需的无功，并滤除换流产生的谐波。但是，逆变侧广州换流站直流控制系统在判断交流滤波器是否可用时，并未考虑广州换流站交流侧的接线方式，基于天广直流输电系统广州换流站无功控制原理，对这一设计上的缺陷进行了分析，利用RTDS实时数字仿真系统对其可能造成的后果进行了仿真，提出了改进建议。

Analysis of designal defect in reactive power control strategy used in Tian-Guang HVDC transmission project

In order to provide the reactive power which convert process needed and filter the harmonic produced in convert process,DC station control system is adopted by Tian-Guang HVDC transmission system to control switching of AC filter automatically based on AC voltage,DC load and reactive power of AC system.But,when DC station control system used in Guangzhou converter estimates whether AC filter could be used or not,configuration of AC side is not considered.Based on theory of reactive power control of Guangzho...