نتایج جستجو برای: under frequency load shedding

تعداد نتایج: 1613373  

Journal: :IEEE Transactions on Power Systems 2021

The conventional Under Frequency Load Shedding (UFLS) scheme could result in unacceptably low frequency nadirs or overshedding power systems with volatile inertia. This paper proposes a novel UFLS for modern whose inertia may vary wide range due to high penetration of renewable energy sources (RESs). proposed estimates the rate change (RoCoF) center (CoI), and consequently, loss generation (LoG...

2009
R. A. H. CHILVERS

Reduction of maximum demand With the rising cost of electricity, there are large incentives There are three main ways in which maximum demand can to reduce the maximum demand charges incurred at a sugar be reduced; mill. The advantages of good maximum demand control, the power factor correction, control Strategy used to implement Such a system and a dedistributing loads more evenly, scription o...

Journal: :روش های عددی در مهندسی (استقلال) 0
رحمت اله هوشمند r. hooshmand حسین سیفی و ولی اله طحانی h. seifi and v. tahani

in this article, an effective method to control a power system during emergency conditions is presented. based on fuzzy linear programming (flp), a new technique is developed to solve the load shedding and generation reallocation (lsgr) optimization problem. the objective function consists of terms of load curtailments and deviations in generation schedules. the constraints are power system var...

2013
Yang Li

......................................................................................................................................... ii Acknowledgements ....................................................................................................................... iii Chapter

2017
Biao Wang Margaret L Russell Kevin Fonseca David J D Earn Gregory Horsman Paul Van Caeseele Khami Chokani Mark Vooght Lorne Babiuk Stephen D Walter Mark Loeb

BACKGROUND Patterns of influenza molecular viral shedding following influenza infection have been well established; predictors of viral shedding however remain uncertain. OBJECTIVES We sought to determine factors associated with peak molecular viral load, duration of shedding, and viral area under the curve (AUC) in children and adult Hutterite colony members with laboratory-confirmed influen...

2007
Rimma V. Nehme Elke A. Rundensteiner

Moving object environments are characterized by large numbers of objects continuously sending location updates. At times, data arrival rates may spike up, causing the load on the system to exceed its capacity. This may result in increased output latencies, potentially leading to invalid or obsolete answers. Dropping data randomly, the most frequently used approach in the literature for load she...

Journal: :DEStech Transactions on Materials Science and Engineering 2017

2014
Renuga VERAYIAH Azah MOHAMED Hussain SHAREEF Izham ZAINAL ABIDIN

Load shedding has been extensively studied because of multiple power system failure occurrences worldwide. Reliable techniques are required to provide rapid and precise load shedding to avert voltage collapse in power networks. Meta-heuristic optimization approaches are currently the widely developed methods because of their robustness and flexibility in dealing with complex and non-linear syst...

Journal: :EAI Endorsed Trans. Energy Web 2014
K. Mollah N. K. C. Nair R. K. Rayudu

This paper investigates an alternative solution to prevent Load Shedding (LS) triggering during underfrequency and proposes a new technique to restore the frequency during emergency events. Demand response (DR) is considered as one of the most promising Smart Grid concepts that can be used to support the peak demand, whereas, LS is an existing last resort method during emergency grid situations...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید