Results 61 to 70 of about 141 (124)
Optimization of the Harmonic in AC Drive Locomotive and EMUs
Kongzhi Yu Xinxi Jishu, 2016 Harmonic content is one of the most important indexes in AC drive locomotive and EMUs. It firstly introduced four types of on-board passive filters and their working principles, such as series inductance, LCL filter, RC filter, RLC filter and so on ...
ZHANG Zhibing, ZHANG Zhixue, CHEN Zhibo
doaj
Design and implementation of a three-level single-phase H-bridge inverter using SHE-PWM
Discover ElectronicsThe need to generate a pure sinusoidal signal with very low Total Harmonic Distortion (THD) motivates the search for the most effective modulation technique among existing methods.
Jalil Akaaboune +3 more
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Application of soft computing algorithms for hybrid modular multilevel inverters
Measurement: SensorsThis study utilized Harris Hawk optimization to analyze the harmonic distortions of a symmetric capacitor based multilevel converter. The proposed multilevel converter uses identical and symmetric DC sources in its input.
Devineni Gireesh Kumar +9 more
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A Nine-Level Inverter with Adjustable Turn-Off Time for Helicopter Transient Electromagnetic Detection. [PDF]
Sensors (Basel), 2023 Peng F +5 more
europepmc +1 more source
International Transactions on Electrical Engineering and Computer ScienceHarmonics is the major power quality problem caused by nonlinear devices, leading to malfunction or operational halt of the system. Low-order harmonics increase vibration and heat generation in motors.
D. Vasavi Krishna +2 more
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A new seven level boost-type ANPC inverter topology for photovoltaic applications. [PDF]
Sci Rep, 2021 M JS, Almakhles DJ.
europepmc +1 more source
Multiple Switching Patterns for SHEPWM Inverters Using Differential Evolution Algorithms
International Journal of Power Electronics and Drive Systems (IJPEDS), 2011 An investigation on multiple patterns for both odd and even number of switching angles in a three-phase selective harmonic elimination pulse width modulation (SHEPWM) inverter is presented. The switching patterns are eand classified on the basis of the harmonic performance of the waveforms output from the inverter.
openaire +1 more source
EnergiesThe following article aims to implement a hybrid modulation methodology based on the Selective Harmonic Elimination Pulse Width Modulation (SHE-PWM) technique to work with the fundamental frequency of the system and find the optimal firing angles using ...
Miguel Ayala +3 more
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ElectricityInduction motors (IMs) are widely used in variable-speed electric drive systems, where the motor is supplied by a voltage source inverter (VSI). Thus, PWM inverter–IM combination presents several issues that can degrade system performance, particularly ...
Bouyahi Henda, Adel Khedher
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Input-parallel output-series Si-SiC hybrid inverter with fractional harmonic elimination
Frontiers in Energy ResearchThis paper proposes an input-parallel output-series (IPOS) Si-SiC hybrid inverter with dual-frequency harmonic elimination modulation strategy. The proposed topology composed of two power conversion cells and a three-phase five-column medium-frequency ...
Qinhai Yu +6 more
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