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基于波动传递函数的电网扰动传播频率特性分析

, PP. 111-117

Keywords: 扰动传播,离散惯量模型,波动传递函数,转折频率,频散效应,局部振荡

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Abstract:

从机电波的角度,研究不同频率的扰动在一维链式电网中的传播特性。借鉴连续体模型中偏微分形式机电波方程的推导思路,建立了离散惯量模型差分形式的机电波传播方程;提出了波动传递函数的概念,以定量刻画机电波波幅、相位在离散惯量模型中的变化规律;进一步通过分析不同频率扰动信号的传播特性,提出了扰动传播转折频率的概念,揭示了扰动传播中的频散效应和局部振荡现象及其与转折频率的关系。50机链式电网中的仿真结果验证了所提出的扰动传播特性及规律的可靠性。

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