Utilizing Harmonics in Sequential and Parallel Disaggregation Schemes

2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI:10.1109/UPEC.2019.8893643

I. Skalidi, D. Kothona, A. Bouhouras, Dimitris Tsiggenopoulos, N. Poulakis, Ioannis Vandikas, Georgios C. Christoforidis, I. Panapakidis

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Abstract

Scope of this paper is to examine the performance of two disaggregation schemes for NILM algorithms based on the utilization of current harmonic vectors. The analysis is based on measurements performed on real residential installation and the utilized features regarding the formulation of the load signatures of the appliances refer to the odd harmonic current vectors up to the fifth harmonic order. Moreover, a large number of measured appliance combinations is used for the application of the disaggregation schemes in order to evaluate their performance. The first scheme relies on sequential disaggregation for the harmonic orders, starting from the fifth and moving on to the first. The second scheme concerns simultaneous disaggregation of all harmonic orders in a parallel manner. The merits and flaws of both schemes are highlighted and the results indicate that for the parallel disaggregation scheme the appliance identification performance is higher at the expense of the computational burden.

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利用谐波在顺序和并行分解方案

本文的范围是研究两种基于电流谐波矢量的NILM算法解聚方案的性能。分析是基于在实际住宅安装中进行的测量，以及有关电器负载特征的公式所利用的特征，这些特征指的是奇谐波电流矢量，直至第五次谐波阶。此外，为了评估分解方案的性能，还使用了大量测量的器具组合来应用分解方案。第一种方案依赖于谐波阶的顺序分解，从第五阶开始，一直到第一阶。第二种方案涉及以并行方式同时分解所有谐波阶。两种方案的优点和缺陷突出显示和结果表明,并行解集方案设备识别性能较高的计算负担。

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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2019 54th International Universities Power Engineering Conference (UPEC)

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