Results 121 to 130 of about 56,128 (237)
DIFFERENCE BETWEEN OF PWM STRATEGIES FOR INVERTER FED INDUCTION MOTOR
Journal of Engineering, 2009 Several sophisticated or "optimum" modulation strategies have been suggested for voltage source pulse with modulated (PWM) inverters for ac motor control. These modulation strategies may suppress specific low – order harmonics or minimize total harmonic.
محمد حسين
doaj +1 more source
Off‐Grid Solar Systems: An Experimental Work and Systematic Techno‐Economic Analysis
Energy Science &Engineering, EarlyView.In the study mentioned above, experimental monitoring and economic evaluation of two off‐grid PV systems were conducted using a low‐cost data logger. The results suggest that basic DC systems are economically feasible compared to grid power, but that AC systems require further cost‐cutting to achieve financial viability.
MD Shouquat Hossain +7 more
wiley +1 more source
Problems of the Regional Energetics, 2010 This paper presents brief description of peculiarities of a novel method of synchronized pulsewidth modulation (PWM) for power electronic converters. Comprehensive comparison with standard PWM techniques has been done.
Oleschuk V.I.
doaj
IEEE AccessThis research presents a three-phase, three-level F-type inverter utilizing a four switch per leg and a DC link. The proposed structure necessitates less power components than traditional three-level inverter topologies, hence reducing switching stress ...
Meenakshi Madhavan +4 more
doaj +1 more source
Optimized Dual ANN Control Technique for Efficient Energy Management System (EMS) of Microgrid
Energy Science &Engineering, EarlyView.Proposed methodology. ABSTRACT The escalating global energy demand necessitates a shift towards sustainable and environmentally friendly alternatives. While renewable energy sources like solar and wind energy offer promising solutions, their intermittent nature poses significant challenges for grid integration.
Bin Li +5 more
wiley +1 more source
MachinesThis study investigates the thermal performance of induction motors powered by multilevel H-bridge inverters using a novel pulse-width phase shift triangle modulation (PSTM-PWM) technique.
Francisco M. Perez-Hidalgo +3 more
doaj +1 more source
A Low‐Cost and Compact High‐Frequency Gallium Nitride Gradient Power Amplifier for Low‐Field MRI
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To reduce the upfront cost of small, low‐field MRI systems, while expanding the capabilities of their gradient systems. Methods A gradient power amplifier was designed to leverage the lowering cost of Gallium Nitride (GaN) power transistors and high speed logic, to achieve high efficiency and responsiveness for driving gradient coils ...
N. Reid Bolding +7 more
wiley +1 more source
Harmonic Characteristics of Variable Frequency System Based on PWM Rectifier
Kongzhi Yu Xinxi Jishu, 2017 In order to solve the problem of harmonic harm of PWM rectifier variable frequency system in power transmission and distribution system, it introduced the basic principle of PWM rectifier control and SPWM modulation according to the main circuit topology
MING Kaiyun
doaj
Conventional Space-Vector Modulation Techniques versus the Single-Phase Modulator for Multilevel Converters [PDF]
, 2010 Space-vector modulation is a well-suited technique to be applied to multilevel converters and is an important research focus in the last 25 years. Recently, a single-phase multilevel modulator has been introduced showing its conceptual simplicity and
Carrasco Solís, Juan Manuel +6 more
core
Pulse-width modulation multiplier Patent [PDF]
, 1970 Pulse duration modulation multiplier ...
Carlson, A. W., Furciniti, C. A.
core +1 more source