New Algorithms for the Evaluation of Flicker in the Context of Modern Electricity Grids

该项目的重点是开发新的算法来量化配电网电压测量中的闪变严重程度。目前的闪烁严重程度衡量标准是几十年前制定的。它估计了参考白炽灯的灯光闪烁对人类观察者的刺激。该算法对电弧炉产生的扰动进行了优化，并适应了过去有限的计算能力。最近在灯类型(例如基于发光二极管的灯)、常见干扰源(例如光伏装置)和仪器能力方面的最新基本变化引起了对本算法适用性的关注。该项目确定了当前电网中由现代电力电子设备造成的最常见的干扰模式，人类观察者如何被它们激怒，考虑到现代照明系统，并开发新的灯和观察刺激模型。基于这种整体分析，提出了一种新的评估现代电网闪变干扰的算法。

The project is focused on the development of new algorithm to quantify the flicker severity from voltage measurements in electricity distribution grids. The present flicker severity metric was developed decades ago. It estimates the irritation of human observer by the light flicker of a reference incandescent lamp. The algorithm was optimized for disturbances generated by arc furnaces and adapted to the limited computational capabilities in the past. Recent fundamental changes in terms of lamp types (e.g. light emitting diode based lamps), common disturbance sources (e.g. photovoltaic installations) and instrumentation capabilities raise concerns about the suitability of the present algorithm. This project identifies the most common disturbance patterns in present electricity grids caused by modern power electronic equipment, how human observers are irritated by them considering modern illumination systems and develop new lamp and observation-irritation models. Based on such holistic analysis, a novel algorithm to evaluate flicker disturbances in modern electricity grids is developed.