基于Prony辨识的VSC-HVDC附加次同步阻尼控制器研究  

VSC-HVDC additional sub-synchronous damping controller design based on Prony identification

作　　者：郭抒颖 韩民晓[1] 黄永宁 张汉花 李旭涛 GUO Shu-ying;HAN Min-xiao;HUANG Yong-ning;ZHANG Han-hua;LI Xu-tao(School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China;Ningxia Key Laboratory of Electrical Energy Security, Ningxia Electric Power Research Institute, State Grid, Yinchuan 750002, China)

机构地区：[1]华北电力大学电气与电子工程学院,北京102206 [2]宁夏电力安全重点实验室国网宁夏电力科学研究院,宁夏银川750002

出　　处：《电工电能新技术》2019年第4期39-46,共8页Advanced Technology of Electrical Engineering and Energy

摘　　要：基于电压源换流器的高压直流输电技术(VSC-HVDC)能够实现有功、无功解耦,具有控制响应迅速等特点。利用其附加次同步阻尼控制(SSDC)可以抑制交流系统中出现的次同步振荡(SSO)现象。本文通过Prony辨识得到含VSC-HVDC的交直流混合系统等值降阶模型,进而利用极点配置法设计VSC-HVDC附加次同步阻尼控制器。最后在PSCAD/EMTDC中建立了并联VSC-HVDC的次同步振荡系统模型进行时域仿真,验证了所设计附加次同步阻尼控制器的有效性。The HVDC technology based on voltage-source converter (VSC-HVDC) has the characteristics of rapid control response with the decoupling control of active and reactive power. It can suppress the sub-synchronous oscillation (SSO) in the AC system effectively by its supplementary sub-synchronous oscillation damping controller (SSDC). In this paper, Prony identification method was applied to obtain the effective reduced order mathematical model of hybrid system with VSC-HVDC, and the SSDC of VSC-HVDC is designed based on the pole configuration method. Finally, a sub-synchronous oscillating system model with VSC-HVDC is built in PSCAD/EMTDC, which verifies the effectiveness of the designed supplementary sub-synchronous damping controller.

关 键 词：电压源换流器 PRONY辨识 次同步振荡 次同步阻尼控制器 

分 类 号：TM721[电气工程—电力系统及自动化]