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通用瞬时动态相量

General Instantaneous Dynamic Phasor

语言:

中文摘要

动态相量广泛应用于电力电子与电力系统领域,但常被误解为仅在平均周期内有效。本文旨在纠正这一误解,探讨动态相量在处理非稳态信号时的数学定义与物理意义,为电力电子系统的瞬态分析提供更精确的理论基础。

English Abstract

Dynamic phasor has now been widely used in the fields of ac power and signal, such as power electronics, power systems engineering, and instrumentation. It is, however, broadly misunderstood by users that the dynamic phasor is valid for an averaged period of time. This misbelief stems from the definition of Fourier series coefficients for a variable where the time sliding integration is taken over...
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SunView 深度解读

该研究提出的通用瞬时动态相量理论,对于阳光电源的构网型(Grid-forming)逆变器及储能变流器(PowerTitan/PowerStack)在弱电网环境下的稳定性控制具有重要参考价值。动态相量法能更精准地捕捉系统在故障穿越(LVRT/HVRT)及黑启动过程中的瞬态响应,有助于优化iSolarCloud平台的故障诊断算法,提升组串式逆变器在复杂电网波动下的控制精度与并网稳定性,是提升产品电网适应性的关键理论支撑。