摘要
分析了直流输电系统中换流变压器的作用,在交直流系统潮流计算中考虑了换流变压器分接头的调整,提出了调整分接头档位的方法,并通过两个算例系统进行了仿真。仿真结果表明,该方法能有效检测运行控制角和电压的越限情况,并根据不同的调整要求尽量使换流器吸收的无功减少。
The action of converter transformer in HVDC transmission system is analyzed. In load flow calculation of AC/DC power system the adjustment of converter transformer＇s tap changer is taken into account, the mathematical model and method to adjust the position of taps are proposed and their simulation results for two-terminal and three-terminal HVDC transmission systems are given. Simulation results show that the proposed method can effectively detect the out-of-limit of operation angle and operation voltage and reduce the reactive power absorbed by converters as possible according to different adjusting requirements.
出处
《电网技术》
EI
CSCD
北大核心
2006年第9期22-27,共6页
Power System Technology
基金
国家重点基础研究发展计划项目(973项目)(2004CB217904)。~~
关键词
电力系统
交直流系统
潮流计算
换流变压器
分接头
power system
AC/DC power system： load flow calculation
converter transformer
tap
