Predictive Direct Power Control Technique for Voltage Source Converter With High Efficiency

A predictive direct power control (PDPC) technique to decrease switching loss by injecting offset voltage is proposed for three-phase voltage source converters. The active and reactive power elements of the converter are directly controlled by using three-phase future converter input voltages, which...

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Main Authors: Jae-Chang Kim, Jun-Cheol Park, Sangshin Kwak
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8331971/
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author Jae-Chang Kim
Jun-Cheol Park
Sangshin Kwak
author_facet Jae-Chang Kim
Jun-Cheol Park
Sangshin Kwak
author_sort Jae-Chang Kim
collection DOAJ
description A predictive direct power control (PDPC) technique to decrease switching loss by injecting offset voltage is proposed for three-phase voltage source converters. The active and reactive power elements of the converter are directly controlled by using three-phase future converter input voltages, which are modified for lowering switching losses by injecting a future offset voltage. Switching operations, generated by the developed PDPC algorithm with modified converter voltage, stop switching operation in one of the converter phases exposed to the highest input current. The non-switching period and the non-switching phase in the proposed technique is automatically adjusted by the reactive power reference, which leads to high efficiency, irrespective of varying input power factor angle condition. The proposed algorithm chooses one optimal voltage vector enabling future active and reactive power to approach closest to the future power references and prohibiting switching of one converter phase conducting the highest current at each step. Therefore, the developed technique can directly control power components and increase converter efficiency, which is proven by simulation and experimental verification.
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spelling doaj.art-1f5080c1320c4a4fbf5029195a3a31722022-12-21T22:10:44ZengIEEEIEEE Access2169-35362018-01-016235402355010.1109/ACCESS.2018.28233328331971Predictive Direct Power Control Technique for Voltage Source Converter With High EfficiencyJae-Chang Kim0Jun-Cheol Park1Sangshin Kwak2https://orcid.org/0000-0002-2890-906XSchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul, South KoreaSchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul, South KoreaSchool of Electrical and Electronics Engineering, Chung-Ang University, Seoul, South KoreaA predictive direct power control (PDPC) technique to decrease switching loss by injecting offset voltage is proposed for three-phase voltage source converters. The active and reactive power elements of the converter are directly controlled by using three-phase future converter input voltages, which are modified for lowering switching losses by injecting a future offset voltage. Switching operations, generated by the developed PDPC algorithm with modified converter voltage, stop switching operation in one of the converter phases exposed to the highest input current. The non-switching period and the non-switching phase in the proposed technique is automatically adjusted by the reactive power reference, which leads to high efficiency, irrespective of varying input power factor angle condition. The proposed algorithm chooses one optimal voltage vector enabling future active and reactive power to approach closest to the future power references and prohibiting switching of one converter phase conducting the highest current at each step. Therefore, the developed technique can directly control power components and increase converter efficiency, which is proven by simulation and experimental verification.https://ieeexplore.ieee.org/document/8331971/Voltage source converterpredictive controlconverter efficiencydirect power controlswitching losses
spellingShingle Jae-Chang Kim
Jun-Cheol Park
Sangshin Kwak
Predictive Direct Power Control Technique for Voltage Source Converter With High Efficiency
IEEE Access
Voltage source converter
predictive control
converter efficiency
direct power control
switching losses
title Predictive Direct Power Control Technique for Voltage Source Converter With High Efficiency
title_full Predictive Direct Power Control Technique for Voltage Source Converter With High Efficiency
title_fullStr Predictive Direct Power Control Technique for Voltage Source Converter With High Efficiency
title_full_unstemmed Predictive Direct Power Control Technique for Voltage Source Converter With High Efficiency
title_short Predictive Direct Power Control Technique for Voltage Source Converter With High Efficiency
title_sort predictive direct power control technique for voltage source converter with high efficiency
topic Voltage source converter
predictive control
converter efficiency
direct power control
switching losses
url https://ieeexplore.ieee.org/document/8331971/
work_keys_str_mv AT jaechangkim predictivedirectpowercontroltechniqueforvoltagesourceconverterwithhighefficiency
AT juncheolpark predictivedirectpowercontroltechniqueforvoltagesourceconverterwithhighefficiency
AT sangshinkwak predictivedirectpowercontroltechniqueforvoltagesourceconverterwithhighefficiency