Results 41 to 50 of about 829 (156)

Ripple‐Free Input Current Quadratic Converter Based on Watkin–Johnson Topology

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
This article proposes a power electronics converter capable of providing high voltage gain while keeping a high‐quality input current ripple. The technique for achieving the zero input current ripple at a selected duty cycle consists of extracting two inductor currents from the source in a counter‐phase manner.
Brenda Lizeth Reyes‐García, Pedro Martín García‐Vite, Hector R. Robles‐Campos, Marco Antonio Coronel‐García, Julio C. Rosas‐Caro, Francisca Hernández Angel   +5 more
wiley   +1 more source

Modelling of BLDCM with a double 3-phase stator winding and back EMF harmonics

Archives of Electrical Engineering, 2015
In this paper the mathematical model of the brushless DC motor (BLDCM) with a double 3-phase stator winding is analysed. Both the 3-phase windings are mutually displaced by 30 electrical degree.
Drozdowski Piotr
doaj   +1 more source

Low-Voltage Ride-Through Coordinated Control for PMSG Wind Turbines Using De-Loaded Operation

IEEE Access, 2021
Low-voltage ride-through (LVRT) is important for the grid integration of wind power systems (WPSs). Each grid operator defines a grid code, including the LVRT requirement, considering their power system characteristics. During grid faults, LVRT is needed
Chunghun Kim, Wonhee Kim
doaj   +1 more source

Analytical Modeling of Photovoltaic Systems Under Partial Shading Conditions Incorporating Bypass and Blocking Diodes Influence

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
This paper presents an innovative analytical model for photovoltaic (PV) systems operating under partial shading conditions (PSCs). The model is developed through a detailed analysis of the current–voltage (I–V) curves of PV systems affected by PSCs and employs a straightforward computational algorithm by adjusting every time the number of cells or ...
Lahlou Abad, Salah Tamalouzt, Kamel Djermouni, Saad Mekhilef, Youcef Belkhier, Mohamed Louzazni   +5 more
wiley   +1 more source

Inertia emulation control strategy for VSC-HVDC transmission systems

, 2013
There is concern that the levels of inertia in power systems may decrease in the future, due to increased levels of energy being provided from renewable sources, which typically have little or no inertia.
Roscoe, Andrew, Bright, C.G., Adam, Grain Philip, Zhu, Jiebei, Booth, Campbell   +4 more
core   +1 more source

Time domain harmonic state estimation in unbalanced power networks based on optimal number of meters and the principle of half‐wave symmetry

IET Generation, Transmission & Distribution, 2017
This study proposes a time domain methodology for harmonic state estimation (HSE) in power systems. The proposed methodology is formulated to analyse the unbalanced operation of three‐phase power systems including non‐linear loads.
Ismael Molina‐Moreno, Aurelio Medina, Rafael Cisneros‐Magaña, Olimpo Anaya‐Lara   +3 more
doaj   +1 more source

Comparative Study of MPPT Optimization in Dual‐Stage PV Systems: PSO‐Integrated P&O and IC Techniques

Journal of Control Science and Engineering, Volume 2025, Issue 1, 2025.
The maximum power point tracking (MPPT) is one of the most vital equipment of photovoltaic (PV) systems for maximum power extraction from PV systems under dynamic conditions. In this paper, we present a comparative study of hybrid MPPT algorithm that combines particle swarm optimization (PSO) along with classical perturb and observe (P&O) and ...
Jeewan Phuyal, Yam Krishna Poudel, Carlos-Andrés García-Vázquez   +2 more
wiley   +1 more source

Utilizing Unified Power Flow Controller for Voltage Stability Improvement of the Electric Power Transmission System of Ghana

Jurnal Nasional Teknik Elektro, 2020
Interconnecting power transmission systems provide reliability of electric power supply. The security of the system is however questioned when a disturbance in any part of the interconnected system causes instability in the entire network. Unified Power
William Duodu Asihene, Francis Boafo Effah, Erwin Normanyo   +2 more
doaj   +1 more source

MTPA With Pseudo‐FOC Strategy–Based BLDC for Minimization of Copper Loss and Torque Ripple

Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.
Brushless DC (BLDC) motor drives are extensively preferred in the automotive industry for their high torque‐to‐weight ratio. In conventional BLDC drives, the torque ripples are high due to 120° conduction mode operation and nonideal back EMF. To minimize the torque ripple in BLDC drives, a flux trajectory is employed based on the extension Park ...
R. Raja Singh, Dattatraya Dilip Kalel, Albert Alexander Stonier, Geno Peter, Valantina Stephen, Vijayakumar Arun, Vivekananda Ganji, Palanisamy R.   +7 more
wiley   +1 more source

An Adaptive Coordinated Control for an Offshore Wind Farm Connected VSC Based Multi-Terminal DC Transmission System

Open Engineering, 2014
The voltage source converter (VSC) based multiterminal high voltage direct current (MTDC) transmission system is an interesting technical option to integrate offshore wind farms with the onshore grid due to its unique performance characteristics and ...
Kumar M. Ajay, Srikanth N.V.
doaj   +1 more source