Decentralized control of series stacked bidirectional DC-AC modules

Achanta, Prasanta K.; Maksimović, Dragan; Ilić, Milan M.

doi:10.1109/apec.2018.8341138

Cited by 12 publications

(6 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But module controllers with the same control objective could be conflicting, as errors and mismatches could not be eliminated completely. Another commonly used control strategy is to add an output LC filter to each module so that each module can control its output voltage independently as an AC signal instead of a pulse signal [11]- [14]. Extra LC filters eliminate the need of coordinating all the modules at the switching level, which in turn eliminates the need for high speed communication link.…”

Section: Introductionmentioning

confidence: 99%

“…Extra LC filters eliminate the need of coordinating all the modules at the switching level, which in turn eliminates the need for high speed communication link. The control strategy in [11] utilizes the local voltage controller along with a virtual droop resistance in each module, but it requires a resistive impedance to connect to the grid.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Brain Tumor Detection from MRI Images Using MATLAB Code

Devi¹

2022

IJSREM

View full text Add to dashboard Cite

Cascaded H-bridge topology has been used in grid tied converters for battery energy storage system due to its modular structure. To fully utilize the converter’s modularity, this paper proposes a hierarchical distributed control architecture that consists of primary control, secondary control and battery state of charge (SOC) balancing control. Primary control ensures accurate current tracking while a distributed secondary control based on consensus algorithm is presented to regulate power sharing among modules and is proved to be stable theoretically. A distributed SOC balancing control is further introduced to improve energy efficiency of battery energy storage system. Finally, the hierarchical distributed control strategy is implemented using hardware controllers and a software platform. Besides, a carrier phase shift control is also implemented to achieve multilevel output voltage and harmonic reduction. The experimental results demonstrate the performance of the proposed control scheme effectively. Keywords—: Battery SOC balancing, cascaded H-bridge, consensus algorithm, distributed control.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Brain Tumor Detection from MRI Images Using MATLAB Code

Devi¹

2022

IJSREM

View full text Add to dashboard Cite

show abstract

“…These techniques are based on a drop controller, emulating the converter to a Thevenin circuit, in which the output impedance of each FB is compared with its neighbors. There exist other balancing controllers the FBs as [9]. For the Multiphase Buck, an Adaptive Voltage Positioning (AVP) control method is designed in [6,11,16].…”

Section: Control Techniques For Multilevel Convertersmentioning

confidence: 99%

“…Most of the time, multicellular converters require to implement a specific control loop to balance either the inductor current for the parallel topologies or the capacitor voltages for the serial ones. There exist many types of balancing methods depending on the types of converter topology addressed [3,[6][7][8][9][10][11]16]. However, the complexity increases when the number of cells increases.…”

Section: Decentralized Controller For a Multi Cell Convertermentioning

confidence: 99%

“…In the case of Multiphase Buck, balancing the leg current produces a suitable distribution of the output current of the system [6]. For the case of CFBMC, it is possible to balance the output voltages of each FB for maintaining equalized the power delivered by each FB [7][8][9][10], or if the sources are batteries, to balance the input current of each FB to maintain well balanced the charging or discharging of the batteries. Furthermore, it is possible to balance the State Of Charge (SOC) of the batteries.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Estrategias descentralizadas y adaptativas para la eliminación selectiva de armónicos en el control de convertidores multinivel

Pino¹

View full text Add to dashboard Cite

Este trabajo consta de dos secciones relevantes. La primera sección propone un control descentralizado para los convertidores multi-nivel. Para el diseño del mismo se plantea un modelo generalizado de los convertidores multi-celulares, basándose en los modelos de los convertidores de capacitores flotantes, convertidor multi-nivel de puentes H en cascada y convertidor de multi-phase Buck. Con ese modelo generalizado se plantea el control que consta de 3 partes: Un sistema de derivación, un control de balance de las celdas de los convertidores y un regulador de la variable de salida. El trabajo presenta resultados de simulación y experimentación con los convertidores de capacitores flotantes y de puentes H en cascada, perturbando el voltaje de entrada, insertando una celda y perturbando la resistencia de carga, obteniéndose resultados favorables y en concordancia entre la teoría, la simulación y la experimentación. La segunda parte de la tesis consiste en un controlador para un inversor multi-nivel simétrico de puentes H en cascada de 9 niveles con la modulación de Eliminación Selectiva de Armónicos. Este controlador regula la componente fundamental y elimina las armónicas 3,5 y 7 cuando existen perturbaciones en las fuentes de entrada o cambios en la resistencia de carga. Este controlador es validado tanto en simulación como en experimentación con dos tests, insertando una carga de 200 W y cambiando una fuente de entrada. obteniéndose resultados favorables y en concordancia entre simulación y experimentación. Finalmente, conclusiones y trabajos futuros son detallados.

show abstract

A Distributed Control Architecture for Cascaded H-Bridge Converter

et al. 2019

2019 IEEE Applied Power Electronics Conference and Exposition (APEC)

View full text Add to dashboard Cite

Decentralized control of series stacked bidirectional DC-AC modules

Cited by 12 publications

References 11 publications

Brain Tumor Detection from MRI Images Using MATLAB Code

Brain Tumor Detection from MRI Images Using MATLAB Code

Estrategias descentralizadas y adaptativas para la eliminación selectiva de armónicos en el control de convertidores multinivel

A Distributed Control Architecture for Cascaded H-Bridge Converter

Contact Info

Product

Resources

About