Results 251 to 260 of about 2,151,961 (284)

Load Shedding, Emergency and Local Control

2019
Nowadays, control of smart grids is of great importance in power networks. Considering loads and generations uncertainties is a paramount idea amongst researchers to illustrate real conditions of smart networks. Furthermore, special methods are being required to prevent cascading failures in emergency conditions whenever an islanded Microgrids (MGs ...
Amin Mokari Bolhasan, Navid Taghizadegan Kalantari, Sajad Najafi Ravadanegh   +2 more
openaire   +1 more source

Optimization of Emergency Load Shedding Based on Cultural Particle Swarm Optimization Algorithm

2019 IEEE Congress on Evolutionary Computation (CEC), 2019
A new optimization model is established in this paper to build power system emergency load shedding scheme adaptive to multi operation modes. Particle swarm optimization (PSO) is used to solve the model heuristically. To improve performance of PSO, the concept of belief space in cultural algorithm is introduced to form the cultural particle swarm ...
Taoyang Xu, Changgang Li, Yutian Liu 0002, Chao Liu, Dawei Su, Chunlei Xu, Haiwei Wu   +6 more
openaire   +1 more source

Emergency load shedding to avoid risks of voltage instability using indicators

IEEE Transactions on Power Systems, 1994
This paper presents a new method to determine a viable load shedding scheme. This scheme presents to the system operator the location and amount of load to be shed to avoid a voltage collapse. In order to develop such a scheme in a timely fashion, indicators are developed to assess the risk of voltage collapse at a particular bus, and a sensitivity ...
T.Q. Tuan, J. Fandino, N. Hadjsaid, J.C. Sabonnadiere, H. Vu   +4 more
openaire   +1 more source

Emergency Lighting using Automatic Load Shedding

Lighting Design + Application, 1979
During an emergency when only turbine power is available, the illumination level automatically drops by one-half, open-circuiting the bottom half of the split-bus panel. This technique is slightly more expensive than wiring alternate lighting fixtures on normal of emergency power, but does not produce spotty or uneven illumination during a power ...
openaire   +1 more source

Intelligent load shedding schemes to prevent voltage instability during emergency conditions

3rd International Conference on Advances in Power System Control, Operation and Management (APSCOM 95), 1995
The neural network-based tool proposed in this paper consists essentially of two cascaded neural networks and allows two functions to be carried out: the voltage stability monitoring function and the undervoltage load shedding function. When the monitoring function is activated a single neural network receives inputs directly from the power system ...
LA SCALA, Massimo, Gabellone L, Sbrizzai R, TROVATO, Michele Antonio   +3 more
openaire   +3 more sources

Optimization of the Event-Driven Emergency Load-Shedding Considering Transient Security and Stability Constraints

IEEE Transactions on Power Systems, 2017
Emergency control is an important measure for prevention of power system blackouts. This paper presents a new event-driven emergency load-shedding scheme that minimizes load shedding while meeting constraints on transient angle stability, voltage/frequency deviation security, and availability of load to be shed at any bus.
Hengxu Zhang, Yutian Liu, Vladimir Terzija   +2 more
exaly   +2 more sources

A system approach to emergency load shedding in case of voltage instability

PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376), 2003
In this paper, the load shedding algorithm based on system approach to prevent voltage instability is presented. The main point of the algorithm is the on-line linear optimization model, which produces the amounts of the load that need to be shed in the case of emergency voltage condition.
openaire   +1 more source

Microgrid and load shedding scheme during islanded mode: A review

Renewable and Sustainable Energy Reviews, 2017
Microgrid (MG) innovation is an enhancement medium for incorporate numerous distributed energy resources (DER) into power distribution systems. In the utility power industry, the implementation of microgrid can give network support at times of stress by ...
Aziah Khamis, Mohamad Fani Sulaima, Nur Najihah Abu Bakar   +2 more
exaly   +2 more sources

Chance-constrained optimal sizing of BESS with emergency load shedding for frequency stability

Applied Energy
Qiuwei Wu, Changgang Li, Yongji Cao
exaly   +2 more sources

A Procedure for Selecting the Parameters of Emergency Load Shedding Commands in 0.4 kV Networks

Vestnik MEI, 2018
Conventionally, when accidents entailing active power imbalance occur in a power system, the underfrequency load shedding devices disconnect the necessary and sufficient amount of loads at the 10 kV voltage level. These load shedding operations are carried out without the possibility of taking into account the importance of certain consumers at the 0.4
Yan L. Artsishevsky, Borbad M. Giyoev
openaire   +1 more source