A voltage-only method for assessing harmonic contribution from a customer installation

2018 18th International Conference on Harmonics and Quality of Power (ICHQP) Pub Date : 2018-05-01 DOI:10.1109/ICHQP.2018.8378909

A. Špelko, I. Papič, S. Djokic

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引用次数: 6

Abstract

This paper presents a simple planning-level method for assessing harmonic contribution from a customer installation to the total voltage distortion at the point of common coupling (PCC) in a considered network. The method consists of three steps, where voltage distortion level before connecting customer installation is first evaluated in terms of the contributions of the network and other connected customers to the PCC distortion and then, after customer installation is connected, in terms of customer contribution to the resulting PCC distortion. For evaluating these contributions, only the changes in harmonic voltages at the PCC are analysed and customer installation is also assessed for the ideally sinusoidal voltage source with no source impedance, where corresponding constant harmonic current sources are used to replace customer installation in the original network, providing additional criteria for disaggregating total PCC distortion into related parts. The presented approach is compared with two other commonly used methods and illustrated on a test network model.

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一种评估用户装置谐波贡献的电压法

本文提出了一种简单的规划级方法，用于评估客户装置对所考虑的网络中共耦合点(PCC)总电压畸变的谐波贡献。该方法包括三个步骤，在连接客户安装之前，首先根据网络和其他连接客户对PCC失真的贡献来评估电压失真水平，然后，在连接客户安装之后，根据客户对由此产生的PCC失真的贡献来评估电压失真水平。为了评估这些贡献，只分析了PCC谐波电压的变化，并评估了无源阻抗的理想正弦电压源的客户安装情况，其中使用相应的恒谐波电流源来取代原始网络中的客户安装，为将PCC总失真分解为相关部分提供了额外的标准。将该方法与另外两种常用方法进行了比较，并在一个测试网络模型上进行了说明。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 18th International Conference on Harmonics and Quality of Power (ICHQP)

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