Search results for "power converter"

showing 3 items of 43 documents

Overview and experimental analysis of MC SPWM techniques for single-phase five level cascaded H-bridge FPGA controller-based

2016

This paper presents an overview and experimental analysis of the MC SPWM techniques for single-phase cascaded H-bridge inverter. The multilevel power converters are an alternative to traditional converters known as “three-level converters”. The voltage waveforms and the related frequency spectra, which have been obtained by simulation analysis in Matlab-Simulink environment, are here reported for all the proposed modulation techniques. The simulation results have been experimentally validated through means of a DC/AC, five-level, single-phase converter prototype with an appropriate test bench.

business.industryComputer science020209 energy020208 electrical & electronic engineeringPhotovoltaic systemElectrical engineering02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciH bridgePower (physics)Grid connectedSettore ING-IND/31 - ElettrotecnicaControl theoryControl and Systems Engineering0202 electrical engineering electronic engineering information engineeringInverterMultilevel power converterVHDLFPGA; Grid connected; Multilevel power converter; Photovoltaic; VHDL; Control and Systems Engineering; Electrical and Electronic EngineeringElectrical and Electronic EngineeringField-programmable gate arraybusinessPhotovoltaicFPGAVoltage
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Voltage source inverters: An easy approach for fast fault detection

2013

Fault-tolerant converters have been widely investigated for years and nowadays an extensive technical literature on this field exists. This paper presents a novel fault detection algorithm based on a simple geometrical approach. In the algorithm analysis both the case of faults in single device and the loss of an entire inverter leg have been considered. The proposed methodology is characterized by simplicity, low computational and implementation effort with a consequent fast execution and easy control integration. The suggested algorithm is verified by means of experimental tests and reveals a valid and suitable alternative to the existing state of the art in the field of inverter fault de…

fault toleranteducationfault detection algorithmPower converterSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettricicontrolSettore ING-INF/07 - Misure Elettriche E Elettroniche
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Design and Performance Evaluation of a High Power-Density EMI Filter for PWM Inverter-Fed Induction-Motor Drives

2016

This paper presents the design of an electromagnetic interference (EMI) filter for a low-voltage high-current induction-motor drives supplied by dc power grids. In order to effectively design the EMI filter, a suitable common-mode/differential-mode (CM/DM) separation technique has been used. Due to the high operating currents, the software-based separation technique using time-domain measurements has been applied. The proposed technique allows the CM and DM sections of the EMI filter to be properly selected in a more economical way, i.e., without the need of a dedicated hardware or costly radio frequency (RF) instrumentation. The design has been done according to a power-density criterion. …

motor drivesEngineeringpower converters02 engineering and technologyElectromagnetic interferenceIndustrial and Manufacturing EngineeringEMI0202 electrical engineering electronic engineering information engineeringElectronic engineeringpower converterElectrical and Electronic EngineeringActive filtermotor driveCommon-mode (CM) and differential-mode (DM) separation techniquesbusiness.industry020208 electrical & electronic engineeringElectrical engineeringpower density020206 networking & telecommunicationsCommon-mode (CM) and differential-mode (DM) separation techniquePower (physics)Settore ING-IND/31 - ElettrotecnicaFilter (video)Control and Systems EngineeringRadio frequencyelectromagnetic interference (EMI) filterbusinessPulse-width modulationInduction motor
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