Results 31 to 40 of about 329 (152)
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
An approach to suppress high-frequency resonance using model predictive and selective harmonic elimination combined strategy [PDF]
, 2021 High-frequency resonance is a prominent phenomenon which affects the normal operation of the high-speed railway in China. Aiming at this problem, the resonance mechanism is analyzed first. Then, model predictive control and selective harmonic elimination
Wang, Ying +3 more
core +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 +4 more
wiley +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
SHEPWM based new hybrid multilevel inverter topology with reduced switch count [PDF]
, 2019 In this paper, a new single-phase hybrid multilevel inverter topology is proposed with reduced switch count. The basic unit of the proposed topology is capable of generating 13 levels at the output. A higher number of levels can be generated by extending
Mustafa, Asif +9 more
core +2 more sources
An Improved Dingo Optimization Algorithm Applied to SHE-PWM Modulation Strategy
Applied Sciences, 2022 This paper presents a modification to the dingo optimization algorithm (mDOA) to solve the non-linear set of equations of the selective harmonic elimination (SHE) control technique widely applied in multilevel inverters. In addition, said modification is
Juan H. Almazán-Covarrubias +3 more
doaj +1 more source
Switched-Battery Boost-Multilevel Inverter with GA Optimized SHEPWM for Standalone Application [PDF]
IEEE Transactions on Industrial Electronics, 2016 No description ...
Sze Sing Lee +4 more
openaire +3 more sources
Optimization of SHEPWM cascaded multilevel inverter switching patterns
International Journal of Power Electronics and Drive Systems (IJPEDS), 2020 Selective harmonic elimination (SHE) is an efficient method to eliminate low-order selected harmonics. However, due to nonlinearity in the problems, many optimization techniques give unsatisfied performances in finding optimum switching angles for the SHE. This paper proposes a modified moth-flame optimization algorithm to eliminate selective harmonics
Ayong Hiendro +4 more
openaire +2 more sources