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2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2012
This paper describes a methodology of application of smart grid technology for improvement of existing emergency automation system. Existing and new developed automation systems are considered in the paper. Authors approved advantage of suggested automation system using mathematical simulation of emergency processes in the power system.
R. Petrichenko, V. Chuvychin
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This paper describes a methodology of application of smart grid technology for improvement of existing emergency automation system. Existing and new developed automation systems are considered in the paper. Authors approved advantage of suggested automation system using mathematical simulation of emergency processes in the power system.
R. Petrichenko, V. Chuvychin
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2007 60th Annual Conference for Protective Relay Engineers, 2007
This paper discusses why voltage as well as frequency load shedding may be necessary to prevent major system blackouts. Investigations of recent blackouts indicate that the root cause of almost all of these major power system disturbances is voltage collapse rather than the underfrequency conditions prevalent in the blackouts of the 1960 and '70s. This
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This paper discusses why voltage as well as frequency load shedding may be necessary to prevent major system blackouts. Investigations of recent blackouts indicate that the root cause of almost all of these major power system disturbances is voltage collapse rather than the underfrequency conditions prevalent in the blackouts of the 1960 and '70s. This
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[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference, 1992
The fast acting load shedding (FALS) function was developed to fulfil a need for a statewide relay that detects a system disturbance that is stable but results in lines operating beyond their ratings, low system voltages, and heavy reactive demand on generating units.
S.A. Nirenberg +2 more
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The fast acting load shedding (FALS) function was developed to fulfil a need for a statewide relay that detects a system disturbance that is stable but results in lines operating beyond their ratings, low system voltages, and heavy reactive demand on generating units.
S.A. Nirenberg +2 more
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Integrated Load Shedding Project
INTELEC '87 - The Ninth International Telecommunications Energy Conference, 1987With the impending energy shortages and the steeply rising costs of constructing new power generation facilities, the electric utilities in the US have found it economically advantageous to encourage major consumers of electricity to curtail usage, mainly during the peak consumption hours between 10 a.m. and 3 p.m. in the summer months.
P.C. Ashar +3 more
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Nonintrusive Load-Shed Verification
IEEE Pervasive Computing, 2011An approach in which residential power meters monitor electricity use and analyze load enables electricity service providers to verify that registered appliances conform to their load-shed instructions.
David Bergman +5 more
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2013 21st Iranian Conference on Electrical Engineering (ICEE), 2013
Similar to conventional systems, having acceptable voltage and frequency is necessary in a microgrid (MG). This issue is realized by grid in grid-connected mode. But in islanded mode, it depends on proper controllers in primary, secondary and emergency levels.
Neda Hajimohamadi, Hassan Bevrani
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Similar to conventional systems, having acceptable voltage and frequency is necessary in a microgrid (MG). This issue is realized by grid in grid-connected mode. But in islanded mode, it depends on proper controllers in primary, secondary and emergency levels.
Neda Hajimohamadi, Hassan Bevrani
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Comprehensive Load-Shedding System
IEEE Transactions on Industry Applications, 2010The availability of reliable electrical power supply for petrochemical industries is extremely important not only to maintain continuous production but also from the point of view of overall plant safety. The costs, caused by production losses, due to a partial or a complete blackout easily run up to millions of dollars per blackout.
U.K. Jethwa +3 more
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Automatic Underfrequency Load Shedding in ESCOM
IFAC Proceedings Volumes, 1980Abstract Low frequency conditions can occur on power systems as a result of the loss of large amounts of generation or when sections with insufficient generation are severed from the main system. Protection against these conditions is required. This paper describes the approach adopted by the Electricity Supply Commission of South Africa.
C.P. Levy, C.A. Haupt
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Example of undervoltage load shedding implementation
AFRICON 2007, 2007After deregulation of power systems, large problems with voltage stability incurred due to the large transits of power transmitted to large distances. Systems are very stressed and often work on their limits. Therefore, single contingency is sometimes enough to cause system collapsing.
Klarić, Mario +2 more
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Load shedding using bargaining games
2014 IEEE PES T&D Conference and Exposition, 2014In times of generation shortage relative to load demand, the only available way to ensure system stability is to shed load equivalent to the amount that demand exceeds supply. This load shedding procedure usually takes place in a series of 3–5 steps where each step has a quantity of load assigned to it.
Gregory Gooden +3 more
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