The Impacts of Demand Side Management on Combined Frequency and Angular Stability of the Power System

Mengxuan Wang, Jovica V. Milanovic

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Abstract

Demand Side Management (DSM) has attracted
significant attention over the past decade due to its potential
contributions to power systems stability and flexibility
improvement. The impact of DSM on system stability is
traditionally assessed from one or two stability aspects, which
may lead to less than comprehensive understanding and
ambiguous deployment decisions that subsequently, deteriorate
and even endanger system stability. This paper assesses the
impact of transmission level advanced DSM on combined system
angular and frequency stability using a newly proposed
composite stability index. The versatility of the proposed
composite stability index and the critical factors (i.e., penetration
level of Renewable Energy Source (RES) and modelling of system
demand) influencing the impact of advanced DSM on combined
system stability are identified using a range of case studies. Such
studies were conducted under different operating conditions
based on a modified IEEE 68-bus test system and an equivalent
network comprising four interconnected real power systems in a
mixed environment of Matlab and DigSilent PowerFactory.
Original languageEnglish
Pages (from-to)1 - 12
JournalIEEE Transactions on Power Systems
DOIs
Publication statusPublished - 2 Sept 2022

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