Results 81 to 90 of about 1,684,593 (114)

A Circuit-Level Decoupling Principle Based Discontinuous Pulse Width Modulation Strategy for Three Level Neutral-Point-Clamped Inverter

, 2014
Multilevel inverter technology has emerged recently as a very important alternative in the area of medium-voltage (2.3, 3.3, 4.16, and 6.9 kv) energy control. The three level neutral-point-clamped (NPC) inverter is the most extensively applied multilevel
Hsieh, Tsung-Yu
core  

Simulation and experimental tests of a real-time DPWM technique for the control of VSI-IM Drive [PDF]

, 2017
In the present paper experimental and simulation results of three phase voltage source inverter (3P-VSI) controlled by the strategy called discontinuous pulse width modulation technique (DPWM_3) corresponding to four saturation of 30° are presented. This
Zaamouche, Fares, Saad, Salah, Hamiche, Larbi, Chouaf, Fethi   +3 more
core  

Modulated Model Predictive Control Strategies for Low-Inductance High-Speed PMSM Drives: A Comparative Analysis

Energies
Model predictive control (MPC) is one of the advanced control strategies implemented for different applications to provide better performance and faster dynamic response. Modulated model predictive control (M2PC) is one of the recent MPC structures.
Ahmed Aboelhassan, Shuo Wang, Xiaoyan Huang, Giampaolo Buticchi, Liang Yan, Ahmed M. Diab   +5 more
doaj   +1 more source

Circulating Current Control for 3-Phase Parallel-Connected Dual VSCs Using DPWM With Dynamic Phase-Shifting

IEEE Open Journal of Power Electronics
Paralleling three-phase, two-level voltage-sourced converters (2L-VSCs) allows the system to handle higher currents and power levels. In such systems, interleaved switching can be employed to improve output waveform quality, reduce filtering requirements,
Tharindu Senavirathna, Gregory J. Kish, John Salmon   +2 more
doaj   +1 more source

Improvement of Pulse-Width Modulation Algorithm for Thermal Plant Control

, 2017
The results of the pulse-width modulation algorithms analysis are presented in the paper. The following two algorithms are analyzed: pulse-width modulator (PWM) based on the sawtooth waveform generator and PWM based on an integrator and a switch element.
Sviatoslav Klos, Sergiy Kril, Volodymyr Savytskyi, Roman Fedoryshyn   +3 more
core   +1 more source

Phase accumulated carrier pulse width modulation

, 2015
An alternative approach to digital PWM generation uses an accumulator rather than a counter to generate the carrier. This offers several advantages.
Gerard F. Ledwich, Broadmeadow, M.A.H., Mark A. H. Broadmeadow, Ledwich, G.F., Geoffrey R. Walker, Walker, G.R.   +5 more
core   +1 more source

Performance Improvement for Reduction of Resonance in a Grid-Connected Inverter System Using an Improved DPWM Method

, 2018
This paper proposes discontinuous pulse width modulation (DPWM) for a grid-connected inverter system using an LCL-filter which consists of two inductors and a capacitor that is connected in parallel per phase.
Jin-Hyuk Park, Kyo-Beum Lee
core   +1 more source

A Two-Degree-of-Freedom DPWM Strategy for Loss-Harmonic Collaborative Optimization in Three-Phase VSCs

IEEE Access
With the trend toward miniaturization and high integration in urban distribution networks, the thermal management of three-phase voltage-source converter (VSC) faces severe challenges due to high switching frequency and power loss-driven junction ...
Haizhou Ying, Ye Tao, Chenxin Dong, Xinchen Chen, Shuolin Zhang   +4 more
doaj   +1 more source

Pulse-Width Modulation of Z-Source Inverters

, 2005
Z-Source inverters have recently been proposed as an alternative power conversion concept as they have both voltage buck and boost capabilities. These inverters use a unique impedance network, coupled between the power source and converter circuit, to ...
Chua, G.T., Vilathgamuwa, Mahinda, Loh, P.C., Lai, Y.S., Li, Y.   +4 more
core   +1 more source

Analysis and Implementation of the MNRV DPWM Methods Applied to Single-Phase Diode-Clamped Four-Level PWM Inverter

IEEE Access
This paper introduces the multi-neighboring reference vector discontinuous pulse-width modulation (MNRV DPWM) with offset voltage injection methodology tailored for single-phase diode-clamped four-level PWM inverters.
Min-Sup Song
doaj   +1 more source