Results 41 to 50 of about 656 (100)
The Journal of Engineering, Volume 2024, Issue 4, April 2024.A lumped‐element circuit model of district heating (DH) pipe considering heat loss, transfer delay and enthalpy transfer is proposed. The proposed model has a high level of accuracy and is computationally more efficient than the existing distributed‐element circuit model of pipe. The lumped‐element circuit representing the DH pipe has only two nodes by
Mingyu Jiang +5 more
wiley +1 more source
Determination of Harmonics for Modeling Integration of Solar Generation to The Electric Grid [PDF]
, 2011 The purpose of this study is to determine a model for analysis of integrating solar generation to the electric grid .The model is then used in determining Harmonics of Integrating solar panels to the electric grid that are based on parallel or series ...
Gokarapu, Ramu
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Pattern Recognition of Power Systems Voltage Stability Using Real Time Simulations [PDF]
, 2010 The basic idea deals with detecting the voltage collapse ahead of time to provide the operators a lead time for remedial actions and for possible prevention of blackouts.
Beeravolu, Nagendrakumar
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A Curve Fitting–Based Directional Protection of Transmission Lines Using Genetic Programing
Journal of Sensors, Volume 2024, Issue 1, 2024.In modern power systems, there is a growing need for protection techniques that are fast, precise, and stable to enhance the reliability and stability of power networks. This paper introduces an advanced technique for fault direction estimation that addresses key limitations in existing methods.
Sabah Daniar +3 more
wiley +1 more source
International Transactions on Electrical Energy Systems, Volume 2024, Issue 1, 2024.Electric power systems constantly encounter disturbances and faults, necessitating fast and precise identification and rectification of these issues. This is crucial for ensuring the stability and reliability of the system. This paper introduces a protection scheme for accelerating the second zone operation of the distance relay during internal faults.
Sabah Daniar +3 more
wiley +1 more source
CASE STUDY ON TRANSFORMER MODELS FOR CALCULATION OF HIGH FREQUENCY TRANSMITTED OVERVOLTAGES [PDF]
, 2014 Events such as lightning, switching of vacuum circuit breaker or switching operations in gas insulated substation (GIS) generate high frequency overvoltages.
Alain Xemard +4 more
core +1 more source
Effects of high frequency modeling & grounding system parameters on transient recovery voltage across vacuum circuit breakers for capacitor switching in wind power plants [PDF]
, 2019 © 2018 Elsevier Ltd This paper investigates the transient recovery voltages across vacuum circuit breakers used for the switching shunt capacitor bank in wind power plants, which are connected to the power system.
Nouri, Hassan
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Iranian Journal of Electrical and Electronic Engineering, 2016 The article presents the transients analysis of the substation grounding systems and transmission line tower footing resistances which can affect to the back-flashover (BF) or overvoltage across insulator chain in an HV power systems by using EMTP-RV ...
F. Amanifard, N. Ramezani
doaj
A Lissajous Curve–Based Method for Busbar Protection
International Transactions on Electrical Energy Systems, Volume 2024, Issue 1, 2024.In this paper, a novel time‐domain method based on the orientation analysis of the superimposed current component Lissajous curves is presented for busbar protection. The conducted study has showed that the orientations of the superimposed current component Lissajous curves are different under internal and external fault conditions. These curves during
M. Sarlak, Akshay Kumar Saha
wiley +1 more source
Investigation of very fast-front transient overvoltages for selection and placement of surge arresters [PDF]
, 2018 : An analysis of very fast front transient overvoltages, generated as a result of induced effects of lightning, across a photovoltaic plant is investigated.
Bokoro, P., Doorsamy, W., Oliveira, R.
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