Results 61 to 70 of about 583 (180)

Volt/VAr Regulation of the West Mediterranean Regional Electrical Grids Using SVC/STATCOM Devices With Neural Network Algorithms

Wind Energy, Volume 28, Issue 2, February 2025.
ABSTRACT Reactive power compensation is now a challenging issue in maintaining adequate power quality and improving the performance of the transmission system. Many researchers have focused on the behavior of voltage in the unbalanced state, and the majority of the studies have been done with STATCOM. In this study, the increasing power demand in power
H. Feza Carlak, Ergin Kayar
wiley   +1 more source

Sub‐Synchronous Oscillation Suppression Strategy for DFIG Based on Morris‐EFAST Global Sensitivity Analysis and Multi‐Parameter Co‐Optimisation

IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
The impedance sensitivity of the doubly‐fed induction generator (DFIG) grid‐connected system with series compensation is analysed using the Morris method and the extended Fourier amplitude sensitivity test (EFAST). A cooperative optimisation approach is proposed to adjust high‐sensitivity parameters, thereby suppressing sub‐synchronous oscillations ...
Gaojun Meng, Junyi Wang, Lei Huang, Yangfei Zhang, Linlin Yu, Haitao Liu   +5 more
wiley   +1 more source

Optimizing power system stability: A hybrid approach using manta ray foraging and Salp swarm optimization algorithms for electromechanical oscillation mitigation in multi‐machine systems

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This paper presents a TID‐based PSS optimized by MRFOSSA, ensuring robust stability in power systems, validated through WSCC‐3 machines 9‐bus system. Abstract This paper emphasizes the significance of ensuring adequate damping of electromechanical oscillations in power systems to ensure stable operation.
Mohamed H. Hassan, Salah Kamel, Mahmoud A. El‐Dabah, Mohammad A. Abido, Hamed Zeinoddini‐Meymand   +4 more
wiley   +1 more source

Fault classification scheme for TCSC compensated transmission line using MODWPT-BTEC

e-Prime: Advances in Electrical Engineering, Electronics and Energy
This article proposes a fault classification algorithm for a Thyristor Controlled Series Compensated (TCSC) long transmission line. Such type of line imposes issues related to reactance modulation, voltage inversion, current inversion and TCSC control ...
Praveen Kumar Mishra, Anamika Yadav
doaj   +1 more source

Heterogeneous populations of bone marrow stem cells--are we spotting on the same cells from the different angles?

Folia Histochemica et Cytobiologica, 2004
Accumulated evidence suggests that in addition to hematopoietic stem cells (HSC), bone marrow (BM) also harbors endothelial stem cells (ESC), mesenchymal stem cells (MSC), multipotential adult progenitor cells (MAPC), pluripotent stem cells (PCS) as well
Janina Ratajczak, Ryan Reca, Marcin Majka, Magda Kucia, Mariusz Z Ratajczak   +4 more
doaj   +1 more source

4579 Distinct clinical and immunological responses to αPD-1, kαPD-L1 and αPD-L2 immunotherapy in B16 melanoma in aged versus young hosts includes T-cell stem cell effects and PD-L2 expression differences

Journal of Clinical and Translational Science, 2020
OBJECTIVES/GOALS: Aging is the biggest risk factor for cancer, yet little is known about cancer immunotherapy effects. Here we investigate melanoma response to αPD-1, αPD-L1 and αPD-L2 in young vs. aged hosts.
Myrna G Garcia, Alvaro Padron, Yilun Deng, Harshita Gupta, Aravind Kancharla, Ryan Reyes, Tyler Curiel   +6 more
doaj   +1 more source

Analysis of reactive power loadability and management of flexible alternating current transmission system devices in a distribution grid using whale optimization algorithm

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
This paper suggests the optimal placement of different flexible alternating current transmission system (FACTS) devices using various metaheuristic methods associated with effective cost management in the distribution network. The outcomes show that the proposed WOA technique generates more upshot than any other evolutionary algorithms in cost ...
Honey Baby, Jayaraj Jayakumar, Mobi Mathew, Mohamed G. Hussien, Nallapaneni Manoj Kumar   +4 more
wiley   +1 more source

Power Flow and Transient Stability Enhancement using Thyristor Controlled Series Compensation

Mehran University Research Journal of Engineering and Technology, 2018
TL (Transmission Line) congestion is a key factor that affects the power system operational cost. In addition of renewable generation in National Grid of Pakistan, transmission line congestion are frequent.
Zaira Anwar, Tahir Nadeem Malik, Tahir Abbas   +2 more
doaj   +1 more source

Power System Stability Improvement via TCSC Controller Employing a Multi-objective Strength Pareto Evolutionary Algorithm Approach [PDF]

Journal of Operation and Automation in Power Engineering, 2007
This paper focuses on multi-objective designing of multi-machine Thyristor Controlled Series Compensator (TCSC) using Strength Pareto Evolutionary Algorithm (SPEA).
M. Darabian, S. Jalilzadeh, M. Azari
doaj  

LA COMPENSACIÓN SERIE CONTROLADA Y EL RELÉ DE IMPEDANCIA

Ingeniería, 2011
Los nuevos desarrollos de la electrónica de potencia conocidos como sistemas flexibles de transporte en corriente alterna (FACTS: “Flexible A.C. Transmission Systems”), han dado origen a diversas investigaciones y aplicaciones industriales.
Eddie Araya Padilla
doaj   +1 more source