摘要
高压直流输电系统在一定条件下可能引发系统的次同步振荡。基于复数力矩系数原理与模糊免疫的方法设计了次同步阻尼控制器。该控制器检测到系统的次同步振荡信号后,能根据振荡情况对控制器参数进行自适应调整,整个控制器结构简单、稳定性强且易于工程实现。以2008年南方电网贵广Ⅱ直流系统为例,电磁暂态时域仿真结果表明了该方法应用于次同步阻尼控制器设计的有效性。
The HVDC transmission system may lead to subsynchronous oscillation under certain circumstances. Based on the complex torque coefficient principle and fuzzy immune control method, a subsynchronous oscillation damping controller is designed. Previous subsynchronous damping control （SSDC） design methods based on linearized system equations are limited by the system＇s scale for the course of dimensionality problem and it is difficult or even impossible in engineering application to the complex power systems. Thus the fuzzy immune control method is proposed for these reasons. The controller proposed is easy to realize and its parameters are self-adjusted by the fuzzy immune rules to adapt to different operation conditions. Simulation results of PSCAD/EMTDC electro-magnetic programs show the validity of the proposed subsynchronous damping controller.
出处
《电力系统自动化》
EI
CSCD
北大核心
2007年第11期12-16,共5页
Automation of Electric Power Systems
基金
国家重点基础研究发展计划(973计划)资助项目(2004CB217907)
国家自然科学基金资助项目(50595412
50377017)
南方电网技术研究中心资助项目~~
