时变时滞电力系统鲁棒镇定控制器设计  

Robust Stabilization Controller Design for Power Systems with Time Varying Delay

作　　者：沈力 沈媛[2] 周浩 SHEN Li;SHEN Yuan;ZHOU Hao(Municipal Planning and Engineering Design Institute of Jiangsu Provincial Planning and Design Group,Nanjing 210036;The 28^(th)Research Institute of China Electronics Technology Group Corporation,Nanjing 210007)

机构地区：[1]江苏省规划设计集团有限公司市政规划与工程设计院,南京210036 [2]中国电子科技集团公司第二十八研究所,南京210007

出　　处：《电气工程学报》2021年第4期174-182,共9页Journal of Electrical Engineering

摘　　要：为考虑时滞系统的不确定性,在常时滞电力系统模型基础上建立不确定时滞电力系统模型。构建新的增广型Lyapunov-Krasovskii泛函,引用Bessel-Legendre不等式方法处理所提Lyapunov-Krasovskii泛函导数中的积分项,计算得到不确定时滞稳定判据。通过和现有文献对比,验证所提方法的优越性。根据得到的稳定判据,应用参数调整法及线性矩阵不等式技术设计出无记忆状态反馈控制器和有记忆状态反馈控制器,通过典型二阶时滞系统、单机无穷大系统分析验证了两种控制器的镇定作用。For the uncertain time-delay systems,the uncertain time-delay power system model is established based on the constant time-delay power system model.By using Bessel-Legendre inequality method to deal with the integral term in the derivative of the new augmented Lyapunov-Krasovskii functional,an uncertain delay stability criterion with less conservativeness is obtained.Compared with the existing literature,the superiority of the proposed method is verified.According to the obtained stability criteria,the memoryless feedback controller and the feedback controller with memory are designed by parameter adjustment method and LMI technology.The stabilization of the controllers is verified by the analysis of the typical second-order delay system and the single machine infinite bus system.

关 键 词：电力系统 时变时滞 鲁棒镇定控制器 

分 类 号：TM712[电气工程—电力系统及自动化]