Seven-level active power conditioner for a renewable power generation system

A seven-level active power conditioner (SLAPC) used to inject the real power of the clean power source into the grid is proposed in this study. This SLAPC is composed of a four-level DC–DC power converter and a full-bridge inverter. The four-level DC–DC power converter converts the output voltage of...

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Published in:IET renewable power generation 2014-09, Vol.8 (7), p.807-816
Main Authors: Wu, Jinn-Chang, Wu, Kuen-Der, Jou, Hurng-Liahng, Chang, Sheng-Kai
Format: Article
Language:English
Subjects:
active filters
active power filter
Cleaning
Conditioning
DC‐DC power convertors
Electric potential
electric power generation
electromagnetic interference
four‐level DC‐DC power converter
four‐level pulse voltage
full‐bridge inverter
harmonic distortion
Inverters
invertors
power electronic switches
Power generation
power harmonic filters
Power sources
Regular Papers
renewable power generation system
seven‐level AC voltage
seven‐level active power conditioner
sinusoidal current
SLAPC
switching power loss
Utilities
utility current
utility voltage
Voltage
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cited_by cdi_FETCH-LOGICAL-c5054-7575af3026272fc0eaea0518afeec29efa1d12eb9a3f1b9652d3f6c45a9d0c6d3
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creator Wu, Jinn-Chang
Wu, Kuen-Der
Jou, Hurng-Liahng
Chang, Sheng-Kai
description A seven-level active power conditioner (SLAPC) used to inject the real power of the clean power source into the grid is proposed in this study. This SLAPC is composed of a four-level DC–DC power converter and a full-bridge inverter. The four-level DC–DC power converter converts the output voltage of the clean power source into a four-level pulse voltage. The full-bridge inverter is switched at low frequency and synchronised with the utility voltage and the output voltage of SLAPC is a seven-level AC voltage. Accordingly, the switching power loss, harmonic distortion and electromagnetic interference caused by the switching operation of power electronic switches are reduced because of the four-level in the DC side and the seven-level in the AC side of the full-bridge inverter. In addition, the proposed SLAPC acts as an active power filter that filters out the harmonic current of the load, so the utility current of the proposed SLAPC is a sinusoidal current and in phase with the utility voltage. A hardware prototype is developed to verify the performance of the proposed SLAPC. The experimental results show that the performance of the proposed SLAPC is as expected.
doi_str_mv 10.1049/iet-rpg.2013.0348
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This SLAPC is composed of a four-level DC–DC power converter and a full-bridge inverter. The four-level DC–DC power converter converts the output voltage of the clean power source into a four-level pulse voltage. The full-bridge inverter is switched at low frequency and synchronised with the utility voltage and the output voltage of SLAPC is a seven-level AC voltage. Accordingly, the switching power loss, harmonic distortion and electromagnetic interference caused by the switching operation of power electronic switches are reduced because of the four-level in the DC side and the seven-level in the AC side of the full-bridge inverter. In addition, the proposed SLAPC acts as an active power filter that filters out the harmonic current of the load, so the utility current of the proposed SLAPC is a sinusoidal current and in phase with the utility voltage. A hardware prototype is developed to verify the performance of the proposed SLAPC. 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source Wiley Open Access
subjects active filters
active power filter
Cleaning
Conditioning
DC‐DC power convertors
Electric potential
electric power generation
electromagnetic interference
four‐level DC‐DC power converter
four‐level pulse voltage
full‐bridge inverter
harmonic distortion
Inverters
invertors
power electronic switches
Power generation
power harmonic filters
Power sources
Regular Papers
renewable power generation system
seven‐level AC voltage
seven‐level active power conditioner
sinusoidal current
SLAPC
switching power loss
Utilities
utility current
utility voltage
Voltage
title Seven-level active power conditioner for a renewable power generation system
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