A Novel Proportional Multi-Resonant Current Controller Strategy for Reduced DC Voltage fed D-STATCOM with Internal LCL Resonance Damping

This work focuses on a new topology-control-based D-STATCOM solution with reduced DC bus voltage requirement and with an excellent grid side performance. The proposed solution consists of a main inverter and auxiliary inverter along with a transformer and LCL filter network to achieve the required D...

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Main Authors: Satpathy Guddy, De Dipankar
Format: Article
Language:English
Published: Sciendo 2024-01-01
Series:Power Electronics and Drives
Subjects:
Online Access:https://doi.org/10.2478/pead-2024-0008
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author Satpathy Guddy
De Dipankar
author_facet Satpathy Guddy
De Dipankar
author_sort Satpathy Guddy
collection DOAJ
description This work focuses on a new topology-control-based D-STATCOM solution with reduced DC bus voltage requirement and with an excellent grid side performance. The proposed solution consists of a main inverter and auxiliary inverter along with a transformer and LCL filter network to achieve the required DC bus reduction. A new controller structure with two proportional-multi resonant controller for the converters with only one of the inductors current as a controlled variable ensures the active damping of the LCL resonance. The power circuit configuration assists the controller to generate a difference in the modulation signal due to non-equal gains in two controllers and helps to achieve the resonance damping without capacitor current sensor. Hence, the corresponding capacitor current sensor can be eliminated. The converter operates for any point of common coupling (PCC) loading conditions and the performance of the controller is immune to the grid impedance variation. A detailed stability study is carried out for the proposed controller. The proposed controller can achieve a very fast dynamic response with an excellent stability margin. The proposed solution is verified through simulation studies and through a scaled-down experimental prototype.
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spelling doaj.art-96e75462d4b4481a801eec53ef7a078a2024-04-22T19:41:03ZengSciendoPower Electronics and Drives2543-42922024-01-019112214110.2478/pead-2024-0008A Novel Proportional Multi-Resonant Current Controller Strategy for Reduced DC Voltage fed D-STATCOM with Internal LCL Resonance DampingSatpathy Guddy0De Dipankar1School of Electrical Sciences (Electrical Engineering), IIT Bhubaneswar, Argul Campus, Jatni, Odisha-752050, IndiaSchool of Electrical Sciences (Electrical Engineering), IIT Bhubaneswar, Argul Campus, Jatni, Odisha-752050, IndiaThis work focuses on a new topology-control-based D-STATCOM solution with reduced DC bus voltage requirement and with an excellent grid side performance. The proposed solution consists of a main inverter and auxiliary inverter along with a transformer and LCL filter network to achieve the required DC bus reduction. A new controller structure with two proportional-multi resonant controller for the converters with only one of the inductors current as a controlled variable ensures the active damping of the LCL resonance. The power circuit configuration assists the controller to generate a difference in the modulation signal due to non-equal gains in two controllers and helps to achieve the resonance damping without capacitor current sensor. Hence, the corresponding capacitor current sensor can be eliminated. The converter operates for any point of common coupling (PCC) loading conditions and the performance of the controller is immune to the grid impedance variation. A detailed stability study is carried out for the proposed controller. The proposed controller can achieve a very fast dynamic response with an excellent stability margin. The proposed solution is verified through simulation studies and through a scaled-down experimental prototype.https://doi.org/10.2478/pead-2024-0008active filteringd-statcomproportional resonant controllerlcl filter
spellingShingle Satpathy Guddy
De Dipankar
A Novel Proportional Multi-Resonant Current Controller Strategy for Reduced DC Voltage fed D-STATCOM with Internal LCL Resonance Damping
Power Electronics and Drives
active filtering
d-statcom
proportional resonant controller
lcl filter
title A Novel Proportional Multi-Resonant Current Controller Strategy for Reduced DC Voltage fed D-STATCOM with Internal LCL Resonance Damping
title_full A Novel Proportional Multi-Resonant Current Controller Strategy for Reduced DC Voltage fed D-STATCOM with Internal LCL Resonance Damping
title_fullStr A Novel Proportional Multi-Resonant Current Controller Strategy for Reduced DC Voltage fed D-STATCOM with Internal LCL Resonance Damping
title_full_unstemmed A Novel Proportional Multi-Resonant Current Controller Strategy for Reduced DC Voltage fed D-STATCOM with Internal LCL Resonance Damping
title_short A Novel Proportional Multi-Resonant Current Controller Strategy for Reduced DC Voltage fed D-STATCOM with Internal LCL Resonance Damping
title_sort novel proportional multi resonant current controller strategy for reduced dc voltage fed d statcom with internal lcl resonance damping
topic active filtering
d-statcom
proportional resonant controller
lcl filter
url https://doi.org/10.2478/pead-2024-0008
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AT satpathyguddy novelproportionalmultiresonantcurrentcontrollerstrategyforreduceddcvoltagefeddstatcomwithinternallclresonancedamping
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