Results 131 to 140 of about 56,128 (237)

Decoupled PWM Control of a Dual-Inverter Four-Level Five-Phase Drive [PDF]

This paper studies pulse-width modulation (PWM) techniques suitable for a four-level five-phase open-end winding (OeW) drive. The drive comprises a five-phase induction machine, supplied using two two-level voltage source inverters (VSIs) with isolated ...
Darijevic, M, Dordevic, O, Jones, M, Levi, E   +3 more
core   +1 more source

Lifetime-Based Discontinuous PWM for Cascaded H-Bridge Converters

IEEE Access
The cascaded H-bridge (CHB) is an attractive converter topology because it can provide voltage and power scalability. However, due to the difference in electrical and thermal characteristics of power devices, the CHB can be composed of cells with unequal
Anas Ibrahim, Mohamed Salem, Tomonobu Senjyu, Soichiro Ueda, Dahaman Ishak, Mahmood Swadi   +5 more
doaj   +1 more source

A hybrid multilevel converter for medium and high voltage applications [PDF]

, 2010
This paper investigates the suitability of the hybrid multilevel converter for medium and high voltage application. The converter operation, modulation, and capacitor voltage balancing method are described in detail.
Adam, Grain Philip, Ahmed, Khaled, Finney, Stephen, Singh, N.K., Williams, Barry   +4 more
core  

A novel and easy‐to‐implement modulation scheme for reducing modulation complexity in modular multilevel converter

IET Power Electronics
Modulation strategy plays a key role in the operation of modular multilevel converters (MMC). Although many studies have been carried out on its optimization in MMC, the limitations of hardware implementation are seldom considered.
Zichen Wang, Zhijie Liu, Ke‐Jun Li, Jinxin Dou, Zhonglin Guo, Xiaoxue Ge   +5 more
doaj   +1 more source

Comparison of Simple Self-Oscillating PWM Modulators

, 2016
Switch-mode power amplifiers has become the conventional choice for audio applications due to their superior efficiency and excellent audio performance. These amplifiers rely on high frequency modulation of the audio input. Conventional modulators use a fixed high frequency for modulation.
Dahl, Nicolai J., Iversen, Niels Elkjær, Knott, Arnold, Andersen, Michael A. E.   +3 more
openaire   +1 more source

Review of recent trends of advancements in multilevel inverter topologies with reduced power switches and control techniques

IET Power Electronics, EarlyView.
Some of the topologies with a fewer number of power switches are reviewed and scrutinized. An extensive analysis of the topologies, control strategy and applications are presented here, suggesting suitable multilevel inverter solutions to the known industrial application or new research.
Anurag Choudhary, Rohit Kumar, Shimi Sudha Letha, Farhad Ilahi Bakhsh, Arshdeep Singh, Mohammad Junaid Khan   +5 more
wiley   +1 more source

Evaporative cooling by pulse width modulation (PWM) of optical dipole traps

Physical Review Research
We introduce a method for cooling atoms in an optical dipole trap using pulse-width modulation (PWM) technique, without reducing the laser power of the dipole trap. The PWM technique involves digital modulation of the trap at a fixed frequency.
S. Sagar Maurya, Joel M. Sunil, Monu Bhartiya, Pranab Dutta, Jay Mangaonkar, Rahul Sawant, Umakant D. Rapol   +6 more
doaj   +1 more source

Versatile PWM module used for cross-teaching

Journal of Engineering Sciences and Innovation
Pulse Width Modulation (PWM) technique has the advantage of providing precise control combined with high efficiency and flexibility, which makes it widely used in modern electronic systems. Therefore, our paper's main goal is to present the results obtained by cross linking a similar design using different implementation techniques for students’ better
AUREL GONTEAN, ALBERT BARBU, SAMUEL MATEA, ELISEI ILIES, MAGDALENA MARINCA   +4 more
openaire   +1 more source

A Capacitor Voltage Balancing Hybrid PWM Technique to Improve the Performance of T-Type NPC Inverters

IEEE Access
Research into solar photovoltaic (PV) fed grid-tied multilevel inverters (MLIs) has increased in recent years due to their distinct features compared to two-level voltage source inverters (VSIs).
Shahriar Hossain, Shuvra Prokash Biswas, Sudipto Mondal, Md. Rabiul Islam, Afef Fekih   +4 more
doaj   +1 more source

Fault diagnosis method of a cascaded H‐bridge inverter based on a multisource adaptive fusion CNN‐transformer

IET Power Electronics, EarlyView.
The multisource adaptive fusion CNN‐transformer method proposed in this study can provide theoretical and technical support for fault diagnosis of high‐voltage MCHBI. It has a promising potential for engineering applications. Abstract In high‐voltage applications, the number of cascaded H‐bridge inverter units is large, the failure probability ...
Weiman Yang, Weinian Wang, Xinggui Wang, Jianfeng Gu, Zhuoling Wang   +4 more
wiley   +1 more source