Experimental Assessment on the Use of Power Semiconductor Filtering Technique in Grid-Connected Inverter

Ryan Shun-Cheung YEUNG; Jacky Chun-Tak LAI; Chung-Pui TUNG; Henry Shu-Hung CHUNG

doi:10.1109/ACCESS.2024.3417237

Experimental Assessment on the Use of Power Semiconductor Filtering Technique in Grid-Connected Inverter

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Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Abstract

An experimental assessment on the use of power semiconductor filtering technique in grid-connected inverter is presented. The idea is based on introducing a series pass device (SPD) between the point of common coupling (PCC) and the output of a full bridge to regulate the current output to the PCC, where the output pulses of the full bridge are unipolar pulse-width modulated. By adjusting the biasing condition of the SPD, the magnitude of the PCC current is dynamically adjusted. To minimize power loss of the SPD, the operation of the SPD is optimized by controlling the output voltage of the full bridge to operate close to the “knee point” of the voltage-current characteristic of the SPD. Such configuration allows the SPD to function as a current source, mitigating the impact of grid impedance on the overall system stability. To validate the effectiveness of the proposed approach, a 347W, 110Vac / 250Vdc, 60Hz prototype utilizing a SiC Junction Transistor as the SPD has been constructed and evaluated. The experimental results closely align with the theoretical predictions. © 2024 The Authors.

Original language	English
Pages (from-to)	134997-135013
Journal	IEEE Access
Volume	12
Online published	20 Jun 2024
DOIs	https://doi.org/10.1109/ACCESS.2024.3417237
Publication status	Published - 2024

Funding

This work was supported by grants from the Innovation and Technology Fund of the Hong Kong Special Administrative Region, China, through Projects MRP/010/21X.

Research Keywords

Bridge circuits
Damping
DC–AC power conversion
Inverters
micro-inverter
output current harmonics
output filtering
Power harmonic filters
power semiconductor filter (PSF)
Resonance
Switches
Voltage
wide-bandgap semiconductor

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This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

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title = "Experimental Assessment on the Use of Power Semiconductor Filtering Technique in Grid-Connected Inverter",

abstract = "An experimental assessment on the use of power semiconductor filtering technique in grid-connected inverter is presented. The idea is based on introducing a series pass device (SPD) between the point of common coupling (PCC) and the output of a full bridge to regulate the current output to the PCC, where the output pulses of the full bridge are unipolar pulse-width modulated. By adjusting the biasing condition of the SPD, the magnitude of the PCC current is dynamically adjusted. To minimize power loss of the SPD, the operation of the SPD is optimized by controlling the output voltage of the full bridge to operate close to the “knee point” of the voltage-current characteristic of the SPD. Such configuration allows the SPD to function as a current source, mitigating the impact of grid impedance on the overall system stability. To validate the effectiveness of the proposed approach, a 347W, 110Vac / 250Vdc, 60Hz prototype utilizing a SiC Junction Transistor as the SPD has been constructed and evaluated. The experimental results closely align with the theoretical predictions. {\textcopyright} 2024 The Authors.",

keywords = "Bridge circuits, Damping, DC–AC power conversion, Inverters, micro-inverter, output current harmonics, output filtering, Power harmonic filters, power semiconductor filter (PSF), Resonance, Switches, Voltage, wide-bandgap semiconductor",

author = "YEUNG, \{Ryan Shun-Cheung\} and LAI, \{Jacky Chun-Tak\} and Chung-Pui TUNG and CHUNG, \{Henry Shu-Hung\}",

year = "2024",

doi = "10.1109/ACCESS.2024.3417237",

language = "English",

volume = "12",

pages = "134997--135013",

journal = "IEEE Access",

issn = "2169-3536",

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T1 - Experimental Assessment on the Use of Power Semiconductor Filtering Technique in Grid-Connected Inverter

AU - YEUNG, Ryan Shun-Cheung

AU - LAI, Jacky Chun-Tak

AU - TUNG, Chung-Pui

AU - CHUNG, Henry Shu-Hung

PY - 2024

Y1 - 2024

N2 - An experimental assessment on the use of power semiconductor filtering technique in grid-connected inverter is presented. The idea is based on introducing a series pass device (SPD) between the point of common coupling (PCC) and the output of a full bridge to regulate the current output to the PCC, where the output pulses of the full bridge are unipolar pulse-width modulated. By adjusting the biasing condition of the SPD, the magnitude of the PCC current is dynamically adjusted. To minimize power loss of the SPD, the operation of the SPD is optimized by controlling the output voltage of the full bridge to operate close to the “knee point” of the voltage-current characteristic of the SPD. Such configuration allows the SPD to function as a current source, mitigating the impact of grid impedance on the overall system stability. To validate the effectiveness of the proposed approach, a 347W, 110Vac / 250Vdc, 60Hz prototype utilizing a SiC Junction Transistor as the SPD has been constructed and evaluated. The experimental results closely align with the theoretical predictions. © 2024 The Authors.

AB - An experimental assessment on the use of power semiconductor filtering technique in grid-connected inverter is presented. The idea is based on introducing a series pass device (SPD) between the point of common coupling (PCC) and the output of a full bridge to regulate the current output to the PCC, where the output pulses of the full bridge are unipolar pulse-width modulated. By adjusting the biasing condition of the SPD, the magnitude of the PCC current is dynamically adjusted. To minimize power loss of the SPD, the operation of the SPD is optimized by controlling the output voltage of the full bridge to operate close to the “knee point” of the voltage-current characteristic of the SPD. Such configuration allows the SPD to function as a current source, mitigating the impact of grid impedance on the overall system stability. To validate the effectiveness of the proposed approach, a 347W, 110Vac / 250Vdc, 60Hz prototype utilizing a SiC Junction Transistor as the SPD has been constructed and evaluated. The experimental results closely align with the theoretical predictions. © 2024 The Authors.

KW - Bridge circuits

KW - Damping

KW - DC–AC power conversion

KW - Inverters

KW - micro-inverter

KW - output current harmonics

KW - output filtering

KW - Power harmonic filters

KW - power semiconductor filter (PSF)

KW - Resonance

KW - Switches

KW - Voltage

KW - wide-bandgap semiconductor

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85196718679&origin=recordpage

U2 - 10.1109/ACCESS.2024.3417237

DO - 10.1109/ACCESS.2024.3417237

M3 - RGC 21 - Publication in refereed journal

SN - 2169-3536

VL - 12

SP - 134997

EP - 135013

JO - IEEE Access

JF - IEEE Access

ER -

Experimental Assessment on the Use of Power Semiconductor Filtering Technique in Grid-Connected Inverter

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