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首页> 外文期刊>Industrial Electronics Magazine, IEEE >Hybrid Voltage Sag/Swell Compensators: A Review of Hybrid AC/AC Converters
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Hybrid Voltage Sag/Swell Compensators: A Review of Hybrid AC/AC Converters

机译：混合电压骤降/骤升补偿器：混合AC / AC转换器的回顾

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摘要

The parameters of electrical energy, such as supply voltage amplitude, are very important, especially from the viewpoint of the final consumer with respect to sensitive loads connected to the grid. Dynamic states in the power grid?voltage sags and swells?might cause faults and defects to develop in sensitive loads. To mitigate unwanted effects, many topologies of ac/ac converters are implemented as voltage compensators. This article presents a review of hybrid ac/ac converters designed to compensate voltage sags and swells with the aim of protecting sensitive loads against sudden and severe changes in supply voltage amplitude. In this article, only solutions without galvanic separation between source and load are described. To assess the properties and to compare different topologies of voltage compensators, some common parameters, such as range of voltage sag and swell compensation, reliability, quantity of switches and transformers, and required power ratings of power electronic units in relation to power of load, are introduced. In addition, we discuss possibilities for compensation of voltage interruption, time of compensation, the efficiency, and the effect on the supply network of the described circuits. The results of the analysis have been collected and compared in tabular form and represented in graphical form. Furthermore, we show potential areas of application for particular solutions of ac voltage compensators.
机译：电能的参数（例如电源电压幅度）非常重要，特别是从最终用户的角度来看，尤其是对于连接到电网的敏感负载。电网中的动态状态-电压骤降和骤升-可能导致敏感负载中出现故障和缺陷。为了减轻不希望的影响，将交流/交流转换器的许多拓扑实现为电压补偿器。本文介绍了旨在补偿电压骤降和骤升的混合型AC / AC转换器，以保护敏感负载免受电源电压幅度的突然和严重变化的影响。在本文中，仅描述了在源与负载之间没有电隔离的解决方案。为了评估特性并比较电压补偿器的不同拓扑，一些常用参数，例如电压骤降和骤升补偿的范围，可靠性，开关和变压器的数量，以及与负载功率相关的功率电子单元所需的额定功率，介绍。另外，我们讨论了电压中断补偿的可能性，补偿时间，效率以及对所述电路的供电网络的影响。分析结果已收集并以表格形式进行比较，并以图形形式表示。此外，我们展示了交流电压补偿器特定解决方案的潜在应用领域。

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