基于矩阵束算法的次同步阻尼控制器设计  

Design of Sub-synchronous Damping Controller Based on Matrix Pencil Algorithm

作　　者：陈德伟[1] 李兴源[1] 

机构地区：[1]四川大学电气信息学院,成都610065

出　　处：《电力系统及其自动化学报》2013年第2期36-41,共6页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金重点项目(51037003);四川省科技厅基础应用计划(2010jy0018);国家电网公司和四川电力公司项目

摘　　要：附加次同步阻尼控制器SSDC(sub-synchronous damping controlle)r是解决由直流输电引起次同步振荡的一种有效措施。振荡模态参数的提取对于SSDC的设计有重要作用。传统的Prony法在运算效率和抗噪声能力方面都比较差,文中发展了电力系统模态辨识的一种新方法-矩阵束算法MP(matrix pencil algorithm),并将其用于交直流混合输电系统的次同步振荡模态分析,在此基础上结合极点配置方法设计出抑制次同步振荡的附加直流阻尼控制器。PSCAD仿真结果验证了该阻尼控制器的有效性。The supplementary sub-synchronous damping controller （SSDC） is an effective measure to solve the prob- lem of sub-synchronous oscillations （SSO） caused by DC transmission. It is very important for the design of SSDC that the extraction of the oscillation mode parameters. The traditional prony method is poor in operational efficiency and noise immunity, so this paper proposed a new identification method in power system which is based on matrix pencil algorithm and applied it to SSO mode analysis. Based on the analysis result, a supplementary sub-synchronous DC damping controller is designed by using pole configuration. Simulations with PSCAD show the effectiveness of the damping controller.

关 键 词：附加次同步阻尼控制器 次同步振荡 矩阵束 

分 类 号：TM712[电气工程—电力系统及自动化]