This letter addresses the initialization problem of power systems modeled as (SDAEs) and proposes a novel efficient initialization method. The method involves finding the co-variance matrix for the system state variables and initializing the stochastic state variables of the system randomly based on their probability distribution. Deterministic states and algebraic variables are then initialized based on the initial stochastic processes and the system co-variance matrix. The proposed method is illustrated through Monte Carlo simulations of a one-machine infinite-bus system and its numerical performance discussed through a dynamic 1479-bus model of the all-island Irish transmission system. It is shown that by utilizing the proposed method the computation time needed for the Monte Carlo simulations of the system can be reduced significantly compared to other initialization methods used in the literature.

中文翻译：

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含随机过程的电力系统暂态稳定模型的初始化


这封信解决了建模为（SDAE）的电力系统的初始化问题，并提出了一种新颖的高效初始化方法。该方法涉及找到系统状态变量的协方差矩阵，并根据概率分布随机初始化系统的随机状态变量。然后根据初始随机过程和系统协方差矩阵初始化确定性状态和代数变量。通过对单机无限总线系统进行蒙特卡罗模拟来说明所提出的方法，并通过全岛爱尔兰传输系统的动态 1479 总线模型讨论其数值性能。结果表明，与文献中使用的其他初始化方法相比，利用所提出的方法可以显着减少系统蒙特卡罗模拟所需的计算时间。