Results 11 to 20 of about 141 (124)

Performance Improvement of a Single Phase Induction Motor Fed by Nonsinusoidal Voltages [PDF]

Engineering and Technology Journal, 2008
The distorted voltage waveforms, which have, more or less, a high harmoniccontent, have negative impact on the long-term performance of the motor, as theycause nonsinusoidal currents in the stator and the rotor, and consequently additionallosses and ...
Jamal A. Mohammed
doaj   +1 more source

Broyden's method assisted differential evolution (BMADE) based selective harmonic elimination in a cascaded H‐bridge multilevel inverter

IET Power Electronics, Volume 16, Issue 14, Page 2336-2355, 4 November 2023., 2023
This paper implements Broyden's Method Assisted Differential Evolution algorithm for eliminating third and fifth harmonics in the output voltage of 7‐level cascaded H‐Bridge multilevel inverter (CHB‐MLI) using selective harmonic elimination technique. Calculations of switching angles are done for various modulation index values (M).
Mohd Ahsan, Shafiq Ahmad, Adil Sarwar, Mohd Tariq, Farhad Ilahi Bakhsh, Adamali Shah Noor Mohamed, Hafiz Ahmed   +6 more
wiley   +1 more source

Hybrid low switching frequency modulation strategy with high dynamic response for high‐power voltage source converter

IET Electric Power Applications, Volume 17, Issue 7, Page 906-917, July 2023., 2023
1. Low switching frequency modulation is important for a high‐power voltage source converter. 2. The proposed hybrid modulation with a new smooth switching way can achieve good output performance and high dynamic response. Abstract For high‐power converters, the low switching frequency (SF) modulation represented by selective harmonic elimination pulse
Bo Guan, Xuyang Yan
wiley   +1 more source

THD Reduction of Improved Single Source MLI Using Upgraded Black Widow Optimization Algorithm

International Transactions on Electrical Energy Systems, Volume 2023, Issue 1, 2023., 2023
An upgraded Black Widow Optimization algorithm for obtaining the ideal switching angles of a reduced structure multilevel inverter is proposed in this paper with minimum voltage THD. The conventional BWO algorithm has been modified and proposed to solve the THD minimization problem with faster convergence rate, lesser tuning variables, and lesser ...
Rupali Mohanty, Debashis Chatterjee, Satyajit Mohanty, C. Dhanamjayulu, Baseem Khan, Flah Aymen   +5 more
wiley   +1 more source

An Overview on Multi‐Level Inverter Topologies for Grid‐Tied PV System

International Transactions on Electrical Energy Systems, Volume 2023, Issue 1, 2023., 2023
Over the years, multi‐level inverter (MLI) usage has increased widely for several applications like motor drives, renewable energy source‐ (RES‐) fed grids, and electric vehicles (EVs). In recent scenarios, the development of RES, grids, and EVs is in advanced mode, and this became the reason for innovations in recent MLI topologies. The new topologies
Paneti Anjaneya Vara Prasad, C. Dhanamjayulu, Ibrahim Mahariq   +2 more
wiley   +1 more source

A single source five-level switched-capacitor based multilevel inverter with reduced device count

e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
Nowadays, multilevel inverters (MLIs) are widely used for integration with renewable energy (RE) resources and in industrial applications. Among different RE sources, photovoltaic (PV) energy is generally used for the generation of power.
Akanksha Kumari, Yatindra Gopal, Dheeraj Kumar Dhaked, Kaibalya Prasad Panda, Y.N. Vijaya Kumar   +4 more
doaj   +1 more source

Design of an Optimized Asymmetric Multilevel Inverter with Reduced Components Using Newton‐Raphson Method and Particle Swarm Optimization

Mathematical Problems in Engineering, Volume 2023, Issue 1, 2023., 2023
Multilevel inverters have great scope in current developments of grid‐connected solar PV systems. Two‐level inverters are the simplest kind of multilevel inverter available (MLI). As the number of output levels is raised, the total harmonic distortion decreases.
Devineni Gireesh Kumar, Nagineni Venkata Sireesha, Aman Ganesh, Hossam Kotb, Kareem M. AboRas, Hamed Zeinoddini-Meymand, Salah Kamel, C. Dhanamjayulu   +7 more
wiley   +1 more source

Power Quality Improvement in a Solar PV Assisted Microgrid Using Upgraded ANN‐Based Controller

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
This paper proposes the design of a controller using the artificial neural network (ANN) for a solar photovoltaic (PV)‐fed cascaded multilevel inverter (CMLI) to enhance the power quality. The objective of this presented ANN controller is to obtain a maximum output voltage with no filter components.
S. Albert Alexander, R. Harish, M. Srinivasan, D. Sarathkumar, C. Dhanamjayulu   +4 more
wiley   +1 more source

A Design Method of the Transmitting Waveform of Electromagnetic Sounding Based on Selective Harmonic Elimination

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
The exploration target at different depths through the ground‐airborne frequency domain electromagnetic method (GAFDEM) is detected by transmitting waveforms at different frequencies. When taking these different depths into detail, arbitrarily distributed frequencies are needed.
Lihui Gao, Yongkang Liu, Nan Chen, Haolin Li, Niaona Zhang, Shengbao Yu, Zhiwen Chen   +6 more
wiley   +1 more source

Comparative research of harmonic suppression algorithm of the three-level NPC converter

The Journal of Engineering, 2018
The three-level NPC converter is an effective solution to medium-voltage and high-power electronic converters. Modulation strategy is one of research focus of the three-level NPC converter.
Li Ning, Gao Tong, Zhang Hui, Yang Ping
doaj   +1 more source