Lyapunov-Based Capacitor Voltage Observation of Modular Multilevel Converters

Samantaray, Jagannath; Chakraborty, Rupak; Dey, Anubrata; Chakrabarty, Sohom

doi:10.1109/tie.2022.3172779

Cited by 5 publications

(2 citation statements)

References 30 publications

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“…In the literature, several observer topologies for MMCCs were proposed, which can be divided into four classes: Sliding mode observers (SMOs) [7,8], Neuronal Networks based observers (NNOs) [9], Kalman filters (KFs) [10,11], and adaptive observers (AOs) [12,13].…”

Section: Introductionmentioning

confidence: 99%

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A generic Lyapunov-based Observer for Double-Star-Chopper-Cell/Bridge-Cell Modular-Multilevel-Cascade-Converters

Testa¹,

Kalmbach²,

Hackl³

2023

Preprint

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<p>Modular Multilevel Cascade Converter (MMCC) have achieved a great importance in high voltage converter applications. As they require a high amount of capacitors whose voltages must be known for the control of the MMCC, many voltage sensors are needed. This paper presents a nonlinear Lyapunov-based observer for cell voltage estimation. The proposed observer does solely rely on the knowledge of the phase currents i.e. no voltage sensors are required and the convergence of the estimator is shown with a stability proof by Lyapunov. The performance of the observer is validated simulatively using <em>MATLAB/Simulink</em>.</p>

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Section: Introductionmentioning

confidence: 99%

“…In [13], the observer estimates the capacitor voltages only by measuring the phase currents. The adaptive observer design for a DSCC-MMCC is based on a constructive Lyapunov proof performed in the discrete-time domain.…”

Section: Introductionmentioning

confidence: 99%

A generic Lyapunov-based Observer for Double-Star-Chopper-Cell/Bridge-Cell Modular-Multilevel-Cascade-Converters

Testa¹,

Kalmbach²,

Hackl³

2023

Preprint

View full text Add to dashboard Cite

show abstract

A generic Lyapunov-based Observer for Double-Star-Chopper-Cell/Bridge-Cell Modular-Multilevel-Cascade-Converters

Testa,

Kalmbach,

Hackl

2023

2023 IEEE 32nd International Symposium on Industrial Electronics (ISIE)

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Modular Multilevel Cascade Converter (MMCC) have achieved a great importance in high voltage converter applications. As they require a high amount of capacitors whose voltages must be known for the control of the MMCC, many voltage sensors are needed. This paper presents a nonlinear Lyapunov-based observer for cell voltage estimation. The proposed observer does solely rely on the knowledge of the phase currents i.e. no voltage sensors are required and the convergence of the estimator is shown with a stability proof by Lyapunov. The performance of the observer is validated simulatively using MATLAB/Simulink.

show abstract

Parameter Design of DCMG System Under Large Signal Stability and Static Voltage Constraints

Zhang,

Yang,

Zhao

et al. 2024

IEEE Systems Journal

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Lyapunov-Based Capacitor Voltage Observation of Modular Multilevel Converters

Cited by 5 publications

References 30 publications

A generic Lyapunov-based Observer for Double-Star-Chopper-Cell/Bridge-Cell Modular-Multilevel-Cascade-Converters

A generic Lyapunov-based Observer for Double-Star-Chopper-Cell/Bridge-Cell Modular-Multilevel-Cascade-Converters

A generic Lyapunov-based Observer for Double-Star-Chopper-Cell/Bridge-Cell Modular-Multilevel-Cascade-Converters

Parameter Design of DCMG System Under Large Signal Stability and Static Voltage Constraints

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