Results 51 to 60 of about 104 (84)
Review of challenges and key enablers in energy systems towards net zero target: Renewables, storage, buildings, & grid technologies. [PDF]
HeliyonFernandez MI, Go YI, Wong DML, Früh WG.
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A new undervoltage load shedding method to reduce active power curtailment
International Transactions on Electrical Energy Systems, 2016 Javad Modarresi +2 more
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On influence of load modelling for undervoltage load shedding studies
IEEE Transactions on Power Systems, 1998This paper explores the influence of load models on decisions of undervoltage load shedding in power systems. A controlled load rejection can be used as an emergency countermeasure to avoid widespread blackout when system voltages are unstable. In this paper, dynamic simulations of a small power system using both static and dynamic load models are ...
Arnborg, S +3 more
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Undervoltage and Underfrequency Combined Load Shedding Method
2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019The conventional undervoltage load shedding (UVLS) and the underfrequency load shedding (UFLS) are designed separately, lacking considerations of mutual impacts of the voltage and the frequency on load characteristics. Thus it may cause excessive or insufficient load curtailments.
Yiming Zhao +3 more
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Deep Feedback Learning Based Predictive Control for Power System Undervoltage Load Shedding
IEEE Transactions on Power Systems, 2021In practical power systems, it is still very challenging to figure out a cost-effective undervoltage load shedding (UVLS) scheme that can reliably and adaptively react to the short-term voltage stability (SVS) problem. Faced with this challenge, this paper develops an intelligent data-driven predictive UVLS scheme for online SVS enhancement.
Lipeng Zhu, Yonghong Luo
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Inclusion of Pre-Existing Undervoltage Load Shedding Schemes in AC-QSS Cascading Failure Models
IEEE Transactions on Power Systems, 2021A challenging problem facing AC-Quasi-Steady-State (AC-QSS) cascading failure models of power system is the divergence issue primarily stemming from voltage collapse phenomena. In reality, there are undervoltage load shedding (UVLS) relays, which aim to prevent such a collapse by shedding a pre-specified fraction of load at buses where the ...
Sina Gharebaghi +4 more
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Analysis of undervoltage load shedding by conservation voltage reduction
2018 Simposio Brasileiro de Sistemas Eletricos (SBSE), 2018The proposed work objective is to evaluate the impact on the quality voltage profile during a undervoltage load shedding applied by conservation voltage reduction. Computational simulations were carried out using the distribution system feeder data of a Brazilian electric utility.
Géssica Michelle dos Santos Pereira +4 more
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Underfrequency and Undervoltage Load Shedding in an Industrial Plant with Cogeneration Facilities
IEEE Transactions on Industry Applications, 2020Underfrequency load shedding is commonly used in the utility systems when AGC (Automatic Generation Control) cannot keep pace with the load demand and the stability of the generators can be jeopardized—undue stresses can be imposed on steam turbine blades. For an industrial system the underfrequency load shedding may have to be resorted to on loss of a
J. C. Das, Aaron McPhee
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Revisiting Undervoltage Load Shedding Schemes: A step by step approach
2008 IEEE/PES Transmission and Distribution Conference and Exposition, 2008Basic guidelines for the design of an undervoltage load shedding scheme (UVLS) are presented as an integral approach to this end. A real case study is used to describe each one of the steps taken and how each parameter is established.
H. G. Sarmiento +4 more
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IEEE Systems Journal, 2020
The investigations on recent blackouts have disclosed that one of the main reasons for cascaded tripping of protection systems is hidden failures (HFs). This involves an in-depth study of the different modes of HF in protection systems to assess their impact on cascading events in a power grid.
Diptak Pal +5 more
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The investigations on recent blackouts have disclosed that one of the main reasons for cascaded tripping of protection systems is hidden failures (HFs). This involves an in-depth study of the different modes of HF in protection systems to assess their impact on cascading events in a power grid.
Diptak Pal +5 more
openaire +3 more sources