Results 71 to 80 of about 8,894 (204)

Model Predictive Direct Power Control for Nonredundant Fault Tolerant Grid-Connected Bidirectional Voltage Source Converter

open access: yesEnergies, 2017
This paper proposes a model predictive direct power control scheme for nonredundant fault tolerant grid-connected bidirectional voltage source converter (BVSC) with balanced dc-link split capacitor voltage and high reliability.
Nan Jin, Leilei Guo, Gang Yao
doaj   +1 more source

Overview of increasing the penetration of renewable energy sources in the distribution grid by developing control strategies and using ancillary services [PDF]

open access: yes, 2014
Increasing the renewables energy resources in the distribution network is one of the main challenges of the distributed system operator due to instability, power quality and feeder capacity problems. This paper proposes a solution for further penetration
Bozalakov, Dimitar   +3 more
core  

FPGA implementation of online finite-set model based predictive control for power electronics [PDF]

open access: yes, 2011
Recently there has been an increase in the use of model based predictive control (MBPC) for power-electronic converters. MBPC allows fast and accurate control of multiple controlled variables for hybrid systems such as a power electronic converter and ...
Jacxsens, Michiel   +3 more
core   +2 more sources

Direct torque control of brushless DC drives with reduced torque ripple [PDF]

open access: yes, 2005
The application of direct torque control (DTC) to brushless ac drives has been investigated extensively. This paper describes its application to brushless dc drives, and highlights the essential differences in its implementation, as regards torque ...
Howe, D., Liu, Y., Zhu, Z.Q.
core   +1 more source

Control of Three-phase Four-leg Micro-grid Inverter in Islanding Mode

open access: yesKongzhi Yu Xinxi Jishu, 2013
Off-grid operation is one of the significant characteristics of micro-grid. In off-grid mode, unbalanced loads will cause voltage unbalance and degrade the performance of micro-grid.
TAN Lanlan
doaj  

Improved natural balancing with modified phase shifted PWM for single-leg five-level flying-capacitor converters [PDF]

open access: yes, 2012
Flying capacitor converters (FCCs), as most multilevel converter topologies, require a balancing mechanism of the capacitor voltages. FCCs have the valuable property of natural voltage balancing when a special modulation technique is used.
Melkebeek, Jan   +3 more
core   +1 more source

Reduction of total harmonic distortion in power inverters [PDF]

open access: yes, 2005
The output voltage of PWM power inverters shows harmonic distortion due to several causes; the main ones are the modulation algorithm, nonlinearities in the output filter, dead times, voltage drops across the switches and modulation of the dc bus voltage.
Aymonino, Oscar Andres   +3 more
core  

Near State Vector Selection-Based Model Predictive Control with Common Mode Voltage Mitigation for a Three-Phase Four-Leg Inverter

open access: yesEnergies, 2017
A high computational burden is required in conventional model predictive control, as all of the voltage vectors of a power inverter are used to predict the future behavior of the system.
Abdul Mannan Dadu   +4 more
doaj   +1 more source

Analysing UPQC performance with dual NPC converters: Three-dimensional and two-dimensional space vector modulation

open access: yesResults in Engineering
A Unified Power Quality Conditioner (UPQC) is designed with series and shunt type Neutral Point Clamped (NPC) converters and it is controlled by 2-Dimensional Space Vector Modulation (2D-SVM) and 3-Dimensional Space Vector Modulation (3D-SVM).
Palanisamy R   +6 more
doaj   +1 more source

Multilevel Converters: An Enabling Technology for High-Power Applications [PDF]

open access: yes, 2009
| Multilevel converters are considered today as the state-of-the-art power-conversion systems for high-power and power-quality demanding applications.
García Franquelo, Leopoldo   +6 more
core  

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