0000000000728848

AUTHOR

Alf Magne Midtbo Versland

showing 2 related works from this author

Control of ultra-high switching frequency power converters using virtual flux-based direct power control

2017

This paper presents a control technique for ultra-high switching frequency rectifiers known as virtual flux-based direct power control (VF-DPC). This method utilizes AC voltage sensors to provide better power quality at the input and output of power converters. Performance of an ultra-high switching frequency converter using the extended and conventional VF-DPC method is analyzed. The analysis has shown that the extended VF-DPC method can reduce better the total harmonic distortion (THD) of input currents and the ripples of the output DC voltage as compared to conventional VF-DPC. Finally, the effect of switching frequency and inductance size on rectifier operation is investigated in this s…

Total harmonic distortionEngineeringSwitched-mode power supplybusiness.industry020208 electrical & electronic engineering02 engineering and technologyPower factorAC powerConvertersInductanceRectifier0202 electrical engineering electronic engineering information engineeringElectronic engineeringbusinessPower control2017 20th International Conference on Electrical Machines and Systems (ICEMS)
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Experimental Investigation of Efficiency Map for an Inverter-Fed Surface-Mount Permanent Magnet Synchronous Motor

2019

Losses in inverter-fed permanent magnet motors are underestimated by using analytical or numerical approach since additional losses due to extra harmonics of the frequency converter are normally skipped. Further, losses in switches and passive components of the converter and the effect of switching frequencies cannot be numerically taken into consideration. Loss-minimizing control and proper efficiency analysis of inverter-fed permanent magnet motors cannot be achieved if an efficiency map is built based on a numerical investigation of the motors alone. This works first reviews losses in a surface-mount permanent magnet synchronous motor (SPMSM) and frequency converters. The efficiency map …

010302 applied physicsPermanent magnet synchronous motorComputer science020208 electrical & electronic engineeringSwitching frequency02 engineering and technologyConverters01 natural sciencesControl theoryModulationHarmonicsvisual_artMagnet0103 physical sciencesElectronic component0202 electrical engineering electronic engineering information engineeringvisual_art.visual_art_mediumInverter2019 8th International Conference on Renewable Energy Research and Applications (ICRERA)
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