Load Flow Analysis of the Nigerian Transmission Grid Using DIgSILENT PowerFactory

2021 56th International Universities Power Engineering Conference (UPEC) Pub Date : 2021-08-31 DOI:10.1109/UPEC50034.2021.9548253

O. G. Olasunkanmi, Zhida Deng, G. Todeschini

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Abstract

The subject of this work is the development of a load flow model for the Nigerian 330 kV transmission system. The model has been developed in DIgSILENT PowerFactory based on data provided by the Nigerian Electricity system operator (NESO). Two scenarios (summer and winter) were considered: for each scenario, load data, generator data, and transmission line parameters were used as inputs to the model. The voltage profiles resulting from the load flow were compared with the original data, and some discrepancies were found. Assumptions and modifications were made to achieve load flow results that were closer to the system data. The results show that in summer and winter, power generated was 4804.10 MW and 4394.41 MW, respectively. The bus voltages were within the voltage magnitude of 0.85 pu and 1.05 pu, according to the local grid code. The model documented in this paper will be used as a baseline for reliability and stability studies. This research aims to identify potential reinforcements to the 330 kV Nigerian transmission system to meet future electricity demand.

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利用DIgSILENT PowerFactory对尼日利亚输电网进行潮流分析

这项工作的主题是尼日利亚330千伏输电系统的潮流模型的发展。该模型是在DIgSILENT PowerFactory中根据尼日利亚电力系统运营商(NESO)提供的数据开发的。考虑了两种场景(夏季和冬季):对于每种场景，将负载数据、发电机数据和输电线路参数作为模型的输入。将负荷流产生的电压分布与原始数据进行了比较，发现了一些差异。假设和修改是为了获得更接近系统数据的负荷流结果。结果表明，夏季和冬季的发电量分别为4804.10 MW和4394.41 MW。根据当地电网规范，母线电压在0.85和1.05 pu之间。本文中记录的模型将用作可靠性和稳定性研究的基线。这项研究的目的是确定330千伏尼日利亚输电系统的潜在加固，以满足未来的电力需求。

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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2021 56th International Universities Power Engineering Conference (UPEC)

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