商业建筑中非线性负荷对电能质量影响的评估——综述

Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting Pub Date : 1991-09-28 DOI:10.1109/IAS.1991.178115

K. Johnson, R. Zavadil

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引用次数: 21

摘要

讨论了商业办公环境中非线性荷载的特点及其影响。描述了这些负载产生的畸变电流与电力系统的相互作用。讨论了一种评估给定设施内潜在问题的近似方法，虽然不严格，但可以作为建筑设计师和工程师评估潜在谐波问题的筛选工具。商业建筑中谐波电流产生的相对高水平影响包括谐波电压畸变、变压器和电机过热以及中性导体过载。根据三种基本非线性类型的广义谐波电流源特性，可以对非线性负载的影响作出合理的估计。与电力系统的相互作用可以用建筑电气系统的简化表示来预测。

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Assessing the impacts of nonlinear loads on power quality in commercial buildings-An overview

The characteristics and effects of nonlinear loads in the commercial office environment are discussed. The interaction of distorted currents drawn by these loads with the power system are described. An approximate approach for evaluating potential problems within a given facility is discussed, which, while not rigorous, can be used as a screening tool by building designers and engineers to make assessments of the potential for harmonic problems. Effects of high relative levels of harmonic current generation in commercial buildings include harmonic voltage distortion, transformer and motor overheating, and neutral conductor overloading. Reasonable estimates of the impacts of nonlinear loads can be made from generalized harmonic current source characteristics of three basic nonlinear types. Interactions with the electric power system can be predicted with simplified representations of the building electrical system.<>

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Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting

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