Results 111 to 120 of about 13,057 (231)

Study of Three-phase PWM Reversible Rectifier Based on Current Decoupling Deadbeat Control

open access: yesKongzhi Yu Xinxi Jishu, 2010
Applying the uncontrolled rectifier method in the rectifying process, conventional pumping unit converter can’t feed back power by motor generating electricity.
李浩光, 张加胜
doaj  

Conventional Space-Vector Modulation Techniques versus the Single-Phase Modulator for Multilevel Converters [PDF]

open access: yes, 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  

Enhanced Linear State Observer–Based PLL-Less Vector-Oriented Control Method for a Three-Phase PWM Rectifier

open access: yesInternational Transactions on Electrical Energy Systems
In practical three-phase PWM rectifiers, external disturbances, such as changes in load and grid voltage, and internal disturbances, such as DC capacitor uncertainty, have caused major problems, including DC-link voltage fluctuations, harmonic distortion,
Mabrouk Defdaf   +5 more
doaj   +1 more source

A Control Strategy for Three-phase Four-wire Voltage Source PWM Rectifier

open access: yesKongzhi Yu Xinxi Jishu, 2015
For the AC/DC rectifier of on-line uninterruptible power system (UPS), it designed a control strategy for three-phase four-wire voltage source PWM rectifier based on dqo axis.
ZOU Juan
doaj  

Suppression Strategy of Starting Current Impulse in the Front Stage Rectifier of Electric Vehicle WPT System

open access: yesWorld Electric Vehicle Journal
The three-phase voltage type Pulse Width Modulation (PWM) rectifier is widely used in the front-end power factor of electric vehicle wireless charging systems due to its simple control structure and easy implementation.
Guangye Li, Shouming Lv, Renming Yang
doaj   +1 more source

Contra-rotating marine current turbines : single point tethered floating system - stabilty and performance [PDF]

open access: yes, 2009
The Energy Systems Research Unit within the Department of Mechanical Engineering at the University of Strathclyde has developed a novel contra-rotating tidal turbine (CoRMaT). A series of tank and sea tests have led to the development and deployment of a
Clarke, Joseph Andrew   +4 more
core  

Simulation of Three-phase Voltage Source PWM Rectifier and Its Control Strategy

open access: yesKongzhi Yu Xinxi Jishu, 2010
This paper introduces the operation theory of three-phase PWM voltage source rectifier(VSR), analyses the mathematic model. Applying the voltage-oriented vector control strategy, the mathematic model and control strategy model are built based on double ...
李大虎, 石新春
doaj  

Simulation of speed tracking for brushless DC motor using fuzzy logic controller [PDF]

open access: yes, 2013
Brushless DC motors are normally used in an automotive application, robotics, medical, industrial automation equipment and machine tools due to its advantages.
Alir, Afifah
core  

Improved Deadbeat Predictive Direct Power Control for Three-Phase PWM Rectifier Based on LADRC

open access: yesJournal of Marine Science and Engineering
In modern marine vessels equipped with electric propulsion systems, rectifiers are commonly used as part of the setup. However, the conventional deadbeat predictive direct power control strategy for three-phase voltage source pulse-width modulation (PWM)
He Ma   +4 more
doaj   +1 more source

Development of Single Phase Induction Motor Adjustable Speed Control Using M68HC11E9 Micro controller [PDF]

open access: yes, 2004
Variable speed control of a single-phase induction motor could be obtained through voltage control method using semiconductor power devices. These methods suffer from the large harmonics that result from the switching operation.
Hussien, Hamad Saad
core  

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