Contribution of Advanced Demand Side Management to Angular Stability of Interconnected Transmission Networks

2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe) Pub Date : 2019-09-01 DOI:10.1109/ISGTEurope.2019.8905681

Mengxuan Wang, J. Milanović

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Abstract

The implementation of Demand Side Management (DSM) in order to enhance power system operational flexibility has gained more and more attention during the past decade. However, DSM could endanger the system stability because it changes the characteristics of system demands. This paper establishes the overall impacts of DSM on angular stability of power system with high penetration of Renewable Energy Sources (RES) and high system operational uncertainty. The overall effects of DSM are assessed by considering the distance (in terms of Euclidean Norm) between stability manifolds of the system before and after applying DSM. The results show that changes of Euclidean Norm with pre-defined positive direction can be adopted to indicate the overall effect of DSM on system angular stability. They further indicate that depending on the system inertia, RES penetration levels and DSM application levels, the effects of DSM on power system angular stability could be very different. A modified version of the 68-bus NETS-NYPS test system in DigSilent/PowerFactory environment has been adopted to perform dynamic simulations.

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先进需求侧管理对互联输电网角稳定性的贡献

近十年来，为了提高电力系统的运行灵活性，实施需求侧管理(DSM)已受到越来越多的关注。然而，由于电力需求侧管理改变了系统需求的特性，可能危及系统的稳定性。本文建立了电力需求侧管理对可再生能源渗透率高、系统运行不确定性高的电力系统角稳定性的总体影响。通过考虑应用DSM前后系统稳定性流形之间的距离(以欧几里得范数表示)来评估DSM的总体效果。结果表明，欧氏范数沿预定正方向的变化可以用来表示DSM对系统角稳定性的总体影响。研究进一步表明，根据系统惯性、RES渗透水平和DSM应用水平的不同，DSM对电力系统角稳定性的影响可能有很大差异。采用改进的68总线NETS-NYPS测试系统在DigSilent/PowerFactory环境下进行了动态仿真。

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 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)

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