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Modelling Guidelines and Solution Techniques for Voltage Dip Prediction

机译：电压跌落预测的建模准则和解决方案技术

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摘要

Digital simulation is a powerful mean to predict the voltage dip performance of a power network. Voltage dip characteristics can be accurately reproduced by means of present simulation tools and using a stochastic prediction procedure that could incorporate the random nature of the voltage dip causes and the behaviour of sensitive equipment during this type of events.rnWhen voltage dips are caused by faults and the retained voltage is the only variable of concern, a frequency-domain technique can be efficiently used for prediction and evaluation. If the characterisation of voltage dips has to include other variables, a time-domain technique will usually be the best solution.rnThis work is aimed at providing a review of techniques that can be applied to voltage dip prediction, assuming that voltage dips are caused by faults. The paper includes a discussion on modelling guidelines to be used for representation of power system components in voltage dip calculations, a summary of the capabilities required in simulation tools applied to voltage dip studies (characterisation, assessment, index calculations) and a representative list of procedures presented to date for voltage dip assessment at both transmission and distribution levels.
机译：数字仿真是预测电网电压骤降性能的有力手段。电压跌落特性可以通过当前的仿真工具并使用随机预测程序准确地再现，该随机预测程序可以将电压跌落原因的随机性质和敏感设备在此类事件中的行为结合在一起。保留电压是唯一需要关注的变量，频域技术可以有效地用于预测和评估。如果电压骤降的表征必须包括其他变量，则时域技术通常是最好的解决方案。这项工作旨在对可用于电压骤降预测的技术进行回顾，假设电压骤降是由以下原因引起的：故障。本文讨论了用于在电压骤降计算中用于表示电力系统组件的建模准则，对应用于电压骤降研究（表征，评估，指数计算）的仿真工具所需功能的摘要，以及代表性程序清单提出了迄今为止用于输电和配电水平的电压骤降评估的方法。

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