考虑谐波污染区域和系统不确定性的电网谐波共振优化监测

IF 2 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Sina Shakeri, Mohammad Hossein Rezaeian Koochi, Saeid Esmaeili
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引用次数: 0

摘要

本文提出了一种分配电能质量监测器(PQM)的优化方法,旨在监测所有谐波共振条件,同时考虑电力系统的不确定性。该配置方法利用频率扫描响应来计算频率范围内的阻抗,从而确定谐波共振条件。因此,它能够建立包含谐波共振条件的二进制矩阵。此外,通过在二元矩阵中使用联合算子,分配方法还能考虑到电力系统的不确定性,如光伏发电和负载水平。分配方法被表述为一个线性问题,该问题可确定 PQM 的最佳位置及其最佳数量,从而监控所有谐波共振条件。此外,通过在建议的方法中考虑非线性负载的谐波污染区域,电网所有者可以找到一种解决方案,用较少的 PQM 来监测电网特定区域内的谐波共振阶次。我们使用 15 节点配电网络和一个实际电网以及伊朗的一个实际大型电网来演示所提出方法的性能。结果表明,与之前的方法相比,所提出的方法建议使用更少的 PQM 来监测谐波共振情况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Optimal harmonic resonance monitoring in electrical network considering area of harmonic pollution and system uncertainty

Optimal harmonic resonance monitoring in electrical network considering area of harmonic pollution and system uncertainty

This paper proposes an optimization approach for allocating power quality monitors (PQMs) aiming to monitor all harmonic resonance conditions while taking power system uncertainties into account. The placement approach utilizes the frequency scan response for calculating impedances over a range of frequencies and consequently determining harmonic resonance conditions. Thereby, it is capable of building binary matrices, which include harmonic resonance conditions. Also, by utilizing the union operator at binary matrices, power system uncertainties such as photovoltaic generation and load level can be considered in the allocation method. The placement approach is expressed as a linear problem that determines the best locations of PQMs and their optimal number so that they monitor all harmonic resonance conditions. Besides, by considering the area of harmonic pollution of non-linear loads in the proposed method, owners of electrical networks can find a solution with fewer PQMs to monitor harmonic resonance orders inside a particular area of the network. The performance of the presented approach is demonstrated using the 15-node distribution network and a real electrical network, as well as a real large electrical network in Iran. Results show that the proposed method suggests fewer PQMs to monitor harmonic resonance conditions compared to previous methods.

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来源期刊
Iet Generation Transmission & Distribution
Iet Generation Transmission & Distribution 工程技术-工程:电子与电气
CiteScore
6.10
自引率
12.00%
发文量
301
审稿时长
5.4 months
期刊介绍: IET Generation, Transmission & Distribution is intended as a forum for the publication and discussion of current practice and future developments in electric power generation, transmission and distribution. Practical papers in which examples of good present practice can be described and disseminated are particularly sought. Papers of high technical merit relying on mathematical arguments and computation will be considered, but authors are asked to relegate, as far as possible, the details of analysis to an appendix. The scope of IET Generation, Transmission & Distribution includes the following: Design of transmission and distribution systems Operation and control of power generation Power system management, planning and economics Power system operation, protection and control Power system measurement and modelling Computer applications and computational intelligence in power flexible AC or DC transmission systems Special Issues. Current Call for papers: Next Generation of Synchrophasor-based Power System Monitoring, Operation and Control - https://digital-library.theiet.org/files/IET_GTD_CFP_NGSPSMOC.pdf
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