Results 21 to 30 of about 514 (145)
A strategy for improving the SHEPWM commutation speed of CSI through hybrid switches
Frontiers in Energy Research, 2023 High-power current source inverters (CSI) usually operate at a low switching frequency to reduce switching loss. To suppress low-order harmonics and simplify filter design, the selective harmonic elimination pulse width modulation (SHEPWM) technique is a
Weiqi Wang +4 more
doaj +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 +2 more
wiley +1 more source
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 +7 more
wiley +1 more source
Direct usage of photovoltaic solar panels to supply a freezer motor with variable DC input voltage [PDF]
, 2020 In this paper, a single-phase photovoltaic (PV) inverter fed by a boost converter to supply a freezer motor with variable DC input is investigated. The proposed circuit has two stages.
Farzan Moghaddam, Ali +1 more
core +2 more sources
Application of Newton Identities in Solving Selective Harmonic Elimination Problem With Algebraic Algorithms [PDF]
, 2022 Algebraic algorithms are powerful methods in solving the selective harmonic elimination (SHE) problem, which can find all exact solutions without the requirements of choosing initial values.
Chen, Dunzhi +5 more
core +2 more sources
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 +4 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 +4 more
doaj +1 more source
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 +6 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 Power quality (PQ) is a key issue, particularly for technologically advanced process equipment, whose performance mainly depends on the quality of supply. Problems with PQ such as voltage swells/sags, interruptions, and harmonics are defined by any voltage, current, or frequency abnormalities causing damage or failure of the end‐user equipment. Outages
Devalraju Prasad +2 more
wiley +1 more source
International Transactions on Electrical Energy Systems, Volume 2022, Issue 1, 2022., 2022 Multilevel inverters (MLI) are becoming more common in different power applications, such as active filters, elective vehicle drives, and dc power sources. The Multi‐Group Marine Predator Algorithm (MGMPA) is introduced in this study for resolving transcendental nonlinear equations utilizing an MLI in a selective harmonic elimination (SHE) approach ...
G. Krithiga, V. Mohan, R Sitharthan
wiley +1 more source