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首页> 外文期刊>International journal of systems,control and communications >Stability analysis of damping compensated generator-excitation control system with time-varying delays
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Stability analysis of damping compensated generator-excitation control system with time-varying delays

机译：具有时变延迟的阻尼补偿发电机激励控制系统的稳定性分析

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摘要

In this paper, a simplified analysis procedure is presented to ascertain delay-dependent stability of a typical damping compensated closed-loop generator-excitation control system operated in a smart grid environment. In closed-loop control of dynamic systems, it is inferred that the use of smart grid technology encompassing complex sensor/measurement circuits, signal conditioning systems, and data transfer through open communication links as feedback loops introduces time-delays in the feedback path. These delays are time-varying in nature, and invariably they exert a destabilising effect to the overall performance of the closed-loop system. Using Lyapunov-Krasovskii functional approach combined with appropriate inequalities, a less conservative analysis is presented in this paper to assess delay-dependent stability of the generator-excitation control system under study. The derived stability criterion is expressed as a set of solvable linear matrix inequality (LMI) conditions so that they can be solved readily using standard numerical packages. Using a standard bench-mark system, the proposed analysis is validated through simulation studies.
机译：本文提出了一种简化的分析程序，以确定在智能电网环境中操作的典型阻尼补偿补偿闭环发生器激励控制系统的延迟依赖性稳定性。在动态系统的闭环控制中，推断使用包含复杂的传感器/测量电路，信号调理系统和通过打开通信链路的数据传输的智能电网技术作为反馈回路引入了反馈路径中的时滞。这些延迟在于性质上时变，并且总是对闭环系统的整体性能发挥稳定效果。使用Lyapunov-Krasovskii功能方法结合适当的不等式，本文提出了一种较少的保守分析，以评估正在研究的发电机激励控制系统的延迟依赖性稳定性。衍生的稳定性标准表示为一组可溶性线性矩阵不等式（LMI）条件，使得可以使用标准数值包容易地解决它们。使用标准台式标记系统，通过模拟研究验证了所提出的分析。

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