基于SSSC和励磁协调抑制次同步振荡的线性最优控制器设计

鹿建成; 李啸骢; 黄维; 查中魁; 黄承喜; 席云

引用本文:	鹿建成,李啸骢,黄维,等.基于SSSC和励磁协调抑制次同步振荡的线性最优控制器设计[J].电力系统保护与控制,2015,43(1):21-27.
	LU Jiancheng,LI Xiaocong,HUANG Wei,et al.Linear optimal controller of static series synchronous compensator and excitation to suppress sub-synchronous oscillation[J].Power System Protection and Control,2015,43(1):21-27

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基于SSSC和励磁协调抑制次同步振荡的线性最优控制器设计
鹿建成^1,2, 李啸骢², 黄维², 查中魁², 黄承喜², 席云²
1.宣城供电公司，安徽宣城 232000;2.广西大学电气工程学院，广西南宁 530004

摘要:

为研究机电扰动情况下静止同步串联补偿器(SSSC)和励磁线性最优控制器(LOSEC)对次同步振荡(SSO)的抑制效果，提出用经典线性最优控制理论并结合次时间最优控制的加权矩阵方法设计该控制器。此外，与无控制器及SSSC最优控制策略(LOSC)对比，分析系统的特征值，可以看出LOSEC能有效地提高系统阻尼比和运行稳定性。最后,在Matlab/Simulink上搭建了包含SSSC的单机无穷大系统电磁暂态模型。仿真结果证实该设计的LOSEC方法在短路扰动下抑制次同步振荡的效果更显著。

关键词: 静止同步串联补偿器次同步振荡线性最优控制加权矩阵时域仿真

DOI：10.7667/j.issn.1674-3415.2015.01.004

分类号:

基金项目:国家自然科学基金资助项目(51267001)；广西科学基金资助项目(桂科自0728027)；南宁市市校科技合作专项项目(200801029D)；北海市市校科技合作专项项目(北科合200801027)

Linear optimal controller of static series synchronous compensator and excitation to suppress sub-synchronous oscillation

LU Jiancheng^1,2, LI Xiaocong², HUANG Wei², ZHA Zhongkui², HUANG Chengxi², XI Yun²

1.Xuancheng Power Supply Company, Xuancheng 232000, China;2.College of Electrical Engineering, Guangxi University, Nanning 530004, China

Abstract:

To study how the linear optimal comprehensive controller of Static Synchronous Series Compensator (SSSC) and excitation to suppress sub-synchronous resonance in the disturbance situations of mechanical and electrical. A classical theory of linear optimal control theory and sub-time optimal control weighting matrix method are proposed. Compared to no controller and the SSSC optimal controller (LOSC), the system eigenvalue parameter analysis shows that LOSEC can improve system damping ratio and operational stability. Finally, the electromagnetic transient model of single machine infinite bus power system including SSSC is established by Matlab/Simulink. The simulation shows that under the short-circuit disturbance, using LOSEC method to suppress sub-synchronous resonance effect is more significant.

Key words: static synchronous series compensator sub-synchronous resonance linear optimal control weighting matrix time-domain simulation

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