Shunt Compensation with Reduced DC Bus Voltage using Modulation Margin Controller

Satpathy, Guddy; Patnaik, Pranab; De, Dipankar

doi:10.1109/indicon.2017.8488036

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…Fig. 2 gives another circuit that attempted to remove the direct transformer and replaced it by inserting a capacitor and intentionally injecting inductive current through it to create out of voltage to grid voltage [9]. This reduces the voltage across the inverter and hence the ratings of the switches.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Controller Strategy for LCL Damping in Reduced DC Voltage fed D-STATCOM

Satpathy

2023

Preprint

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This work focuses on a new topology-control based D-STATCOM solution with reduced DC bus voltage requirement and with an excellent grid side performances. The proposed concept consists of a main shunt converter and a series converter with a transformer to achieve the desired DC bus reduction. The active damping based on capacitor current feedback and associated additional capacitor current sensor requirement are eliminated by using a proposed double controller structure for series and shunt converters with only series current as a controlled variable. Moreover, the stability related issues based on converter inductor selection is studied extensively for the above controller and superiority of the proposed concept is demonstrated. The proposed solution is verified through simulation studies and through a scaled-down experimental prototype.

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Section: Introductionmentioning

confidence: 99%

“…1 Direct integration of grid with inverter [8] Fig. 2 Intentional injection of inductive current for DC voltage reduction [9] Fig. 1 shows a topology where the grid voltage is entirely stepped down to desired voltage level of operation [8].…”

Section: Introductionmentioning

confidence: 99%

A Novel Controller Strategy for LCL Damping in Reduced DC Voltage fed D-STATCOM

Satpathy

2023

Preprint

Self Cite

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“…1: Direct integration of grid with inverter [8] Fig. 2: Intentional injection of inductive current for DC voltage reduction [9] voltage and full load current. The current rating of the devices is more than the actual compensating current and depends upon the transformer turns ratio.…”

Section: Introductionmentioning

confidence: 99%

A Novel Controller Strategy for Damping LCL Oscillations in Reduced DC Voltage fed Single Phase D-STATCOM

Satpathy

2023

Preprint

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This work focuses on a new topology-control basedD-STATCOM solution with reduced DC bus voltage requirementand with an excellent grid side performances. The proposedconcept consists of a main shunt converter and a series converterwith a transformer to achieve the desired DC bus reduction.The active damping based on capacitor current feedback andassociated additional capacitor current sensor requirement areeliminated by using a proposed double controller structure for seriesand shunt converters with only series current as a controlledvariable. Moreover, the stability related issues based on converterinductor selection is studied extensively for the above controllerand superiority of the proposed concept is demonstrated. Theproposed solution is verified through simulation studies andthrough a scaled-down experimental prototype.

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Integration of Active Filter to the Grid at Reduced DC Voltage with Suppressed Leakage Current and Minimal Switches

Satpathy

2021

2021 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Shunt Compensation with Reduced DC Bus Voltage using Modulation Margin Controller

Cited by 5 publications

References 13 publications

A Novel Controller Strategy for LCL Damping in Reduced DC Voltage fed D-STATCOM

A Novel Controller Strategy for LCL Damping in Reduced DC Voltage fed D-STATCOM

A Novel Controller Strategy for Damping LCL Oscillations in Reduced DC Voltage fed Single Phase D-STATCOM

Integration of Active Filter to the Grid at Reduced DC Voltage with Suppressed Leakage Current and Minimal Switches

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