Results 251 to 260 of about 43,903 (287)

Adaptive load shedding for isolated power systems

IEE Proceedings - Generation, Transmission and Distribution, 1994
Emergency control of frequency in an isolated power system is considered. In many such systems, limited load shedding is permitted under certain generation loss conditions to reduce the expense of spinning reserve provision. It is important in these circumstances to minimise consumer disruption through proper-design of the load shedding arrangements ...
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Design of adaptive load shedding by artificial neural networks

IEE Proceedings - Generation, Transmission and Distribution, 2005
The design of an adaptive load-shedding strategy by executing an artificial neural network (ANN) and transient stability analysis for an electric utility system is presented. To prepare the training data set for an ANN, the transient stability analysis of an actual power system has been performed to solve for minimum load shedding with various ...
C.-T. Hsu, M.-S. Kang, C.-S. Chen
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Optimal location of shedding load at the adaptive UFLS

2010 IEEE International Energy Conference, 2010
Under Frequency Load Shedding, UFLS, is the last step and the most extreme in protecting electric power systems from black outs and severe damages. Load shedding relays are installed at constant locations in the system. These locations are usually substations feeding less important loads.
Mohamed Abdel-Moaty El-Azab, Rasha, Eldin, E Shehab, Lataire, Philippe, Sallam, Muhamed   +3 more
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Data Triage: An Adaptive Architecture for Load Shedding in TelegraphCQ

21st International Conference on Data Engineering (ICDE'05), 2005
Many of the data sources used in stream query processing are known to exhibit bursty behavior. Data in a burst often has different characteristics than steady-state data, and therefore may be of particular interest. In this paper, we describe the Data Triage architecture that we are adding to TelegraphCQ to provide low latency results with good ...
F. Reiss, J.M. Hellerstein
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A Novel Adaptive Load Shedding Scheme for Data Stream Processing

Future Generation Communication and Networking (FGCN 2007), 2007
In this paper, we present a novel feedback control-based load shedding scheme for data stream processing. Firstly we apply system identification to establish a dynamic model to describe data stream management system (DSMS), which enables us analyze DSMS quantitatively.
Yunyi Zhang, Chongzheng Huang, Deyun Zhang   +2 more
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Adaptive Under-Frequency Load Shedding Scheme by Genetic Algorithm

2006
Under-Frequency Load Shedding (UFLS) is one technique used in the power industry for many years. The UFLS function is to rescue the system under extreme disturbances and avoid the system collapse. Traditionally, a scheme is designed based on the projected scenarios (considering the summer and winter conditions) as well as the worst generation ...
Chinwang Lou, Mingchui Dong, Chikong Wong   +2 more
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Intentional islanding and adaptive load shedding to avoid cascading outages

2006 IEEE Power Engineering Society General Meeting, 2006
Predetermined islanding scenarios along with automated load shedding schemes are applied once a prospective cascading outage condition is predicted. If required, additional distributed generation at specified locations in the system is also determined. The choice of different islands along with loads to be shed is then made available to the operator so
H.M. Dola, B.H. Chowdhury
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Adaptive undervoltage load shedding relay design using Thevenin equivalent estimation

2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008
Power transmission systems of today are operating closer to their limit. In the event of a developing blackout, the disconnection of loads under controlled conditions can maintain system's stability. Undervoltage load shedding (UVLS) is an economical solution to the voltage stability problem, and provides protection for unusual disturbances outside the
Shu-Jen Steven Tsai, Kim-Hoi Wong
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A new adaptive multidimensioanal load shedding scheme using genetic algorithm

Canadian Conference on Electrical and Computer Engineering, 2005., 2006
This paper proposes a fast and accurate load shedding scheme design. The algorithm uses the synchronized real time power flow information. It selects the suitable load shedding for generator tripping contingencies. Genetic algorithms are used to solve the steady state load shedding optimization problem.
M. Sanaye-Pasand, M. Davarpanah
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Optimal adaptive under frequency load shedding using Neuro-Evolution Algorithm

2018 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM), 2018
Under frequency load shedding (UFLS) is well known and widely used emergency control scheme to prevent system instability under disturbances that cause large imbalance between load and generation. A properly design UFLS scheme should be able to shed the minimum amount of load necessary for a safe and smooth transition of the system from emergency ...
S. Saboune, AA. Ladjici, A. Tiguercha
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