Results 71 to 80 of about 90,461 (171)
Effect of ambient temperature variations on estimation of proximity of the voltage collapse point
IET Generation, Transmission & Distribution, 2020 Due to deforestation, greenhouse gases and increasing air conditioner systems, the temperatures are changing drastically and the effects are prominent in summer and winter seasons.
Trinadha Burle +1 more
doaj +1 more source
Waveguide propagation of light in polymer porous films filled with nematic liquid crystals
, 2019 We theoretically analyze the waveguide regime of light propagation in a cylindrical pore of a polymer matrix filled with liquid crystals assuming that the effective radial optical anisotropy is biaxial. From numerical analysis of the dispersion relations,
Chopik, A. P. +5 more
core +1 more source
Voltage Stability Indices: Formulation and Classification Perspectives
International Journal of Innovative Technology and Exploring Engineering, 2019 Voltage instability had been observed as the foremost cause of blackout incidents worldwide in last three decades. In order to deploy an appropriate countermeasure and enhance voltage stability margin, voltage stability predictor is of utmost importance.
openaire +1 more source
Priority Events Determination For The Risk-oriented Management Of Electric Power System [PDF]
, 2018 The task of risk-oriented management of the electric power system in conditions of multi-criteria choice is considered. To determine the most effective measures, the implementation of which will reduce the magnitude of the risk of an emergency situation,
Kosterev, M. (Mykola) +1 more
core
Long-Term Voltage Stability Assessment of an Integrated Transmission Distribution System
, 2017 Long-term voltage stability assessment (VSA) of independent transmission (T-VSA) and distribution (D-VSA)systems have been studied since long to estimate load margins. However, their impacts on each other have been neglected due to simplified assumptions
Ajjarapu, Venkataramana, Singhal, Ankit
core +1 more source
IET Generation, Transmission & Distribution, 2014 Voltage stability improvement is a challenging issue in planning and security assessment of power systems. As modern systems are being operated under heavily stressed conditions with reduced stability margins, incorporation of voltage stability criteria in the operation of power systems began receiving great attention.
Tarik Zabaiou +2 more
openaire +1 more source
Short term voltage-based risk assessment by incorporating reactive power adequacy
Ain Shams Engineering Journal, 2016 A risk-based approach for short term security assessment with voltage stability constraint is presented in this paper. This approach includes voltage-stability considerations in reactive power adequacy assessment of a composite power system. The proposed
Mohsen Rahimi +2 more
doaj +1 more source
International Journal of Electrical Power & Energy SystemsFor high-proportion renewable energy sending-end power grids, various transient voltage instabilities including transient overvoltage, transient low voltage, delayed voltage recovery, repeated low voltage ride through, and sustained low voltage, are ...
Lei Wu, Pupu Chao, Weixing Li, Zhimin Li
doaj +1 more source
Voltage stability analysis in radial smart distribution grids
IET Generation, Transmission & Distribution, 2017 Stability studies in distribution smart grids (SGs) are very important due to the increased penetration of distributed energy resource making bidirectional flow of electric power.
Soheil Derafshi Beigvand +2 more
doaj +1 more source
Energy Science & EngineeringThe increased demand for electricity has forced power systems to operate near their stability limits. Optimal reactive power planning (ORPP) can enhance voltage stability and provide much‐needed support for grid operation. Flexible AC transmission system
Rawan Abu Zeitawyeh, Ayman Faza
doaj +1 more source