论文标题
数值整合方法的小信号稳定性分析
Small-Signal Stability Analysis of Numerical Integration Methods
论文作者
论文摘要
本文提供了一个新颖的框架，以研究用于电源系统的时域模拟时数值集成方案的准确性和稳定性。采用了基于矩阵的方法来评估电源系统动态模式之间的误差和由数值方法的应用引起的近似离散时间系统的模式。提出的方法可以提供有意义的见解，以了解不同方法在应用于电源系统时如何相互比较，同时足够通用，可以系统地使用任何数值方法。该框架是为少数众所周知的显式和隐式方法所说明的，而基于WSCC 9-BUS系统以及All-Island Island Irish传输系统的1、479-BUS动态模型，示例结果是根据WSCC 9-BUS系统提出的。
The paper provides a novel framework to study the accuracy and stability of numerical integration schemes when employed for the time domain simulation of power systems. A matrix pencil-based approach is adopted to evaluate the error between the dynamic modes of the power system and the modes of the approximated discrete-time system arising from the application of the numerical method. The proposed approach can provide meaningful insights on how different methods compare to each other when applied to a power system, while being general enough to be systematically utilized for, in principle, any numerical method. The framework is illustrated for a handful of well-known explicit and implicit methods, while simulation results are presented based on the WSCC 9-bus system, as well as on a 1, 479-bus dynamic model of the All-Island Irish Transmission System.
