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文章摘要
基于自适应SFLA算法的LQR附加阻尼控制器设计
Design of LQR additional damping controller based on adaptive SFLA algorithm
Received:January 02, 2019  Revised:January 03, 2019
DOI：10.19753/j.issn1001-1390.2020.08.001
中文关键词: 柔性直流  阻尼控制  线性二次型最优控制
英文关键词: VSC-HVDC  damping control  linear quadratic optimal control
基金项目:国家重点研发计划项目(2018YFB0904601)
Author NameAffiliationE-mail
ZHAOJUN* SiChuang University loves94@126.com 
ZhangYingMin SiChuang University zhasii@126.com 
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中文摘要:
      针对含有电压源型换流器高压直流（VSC-HVDC）的交直流系统愈发凸显的低频振荡问题，提出了一种基于改进自适应混合蛙跳（SFLA）算法优化的线性二次型最优方法来设计附加阻尼控制器，以此来抑制振荡。该方法采用最小二乘-旋转不变技术（TLS-ESPRIT），辨识出系统的对应振荡模态和降阶模型。然后针对该模型运用线性二次最优控制法并引入状态观测器，求出带观测器的控制器表达式。接着用改进自适应SFLA算法对权矩阵进行优化，设计线性二次型最优控制器使其控制效果最优。最后在PSCAD/EMTDC中搭建四机两区域模型，构成测试系统进行仿真验证。仿真结果显示这种控制器相比于传统线性二次最优控制器具有更好的鲁棒性和控制效果，控制器也较易设计。
英文摘要:
      
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