Small Signal Model for Very-Large-Scale Multi-Active-Bridge Differential Power Processing (MAB-DPP) Architecture

Wang, Ping; Chen, Yenan; Elasser, Youssef; Chen, Minjie

doi:10.1109/compel.2019.8769633

Cited by 11 publications

(12 citation statements)

References 13 publications

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“…However, in the case of isolated dc-dc converters like the MAB converter, one of the state-variable is the transformer current, which does not satisfy the small-ripple approximation [22]- [24]. Since the power flow coupling can be analyzed by low-frequency dynamics, the influence of the high-frequency leakage inductor dynamics of the transformer can be neglected [8], [14], [25]. To that end, an approximate control-oriented small signal system model can be derived by linearizing the system at a dc operating point.…”

Section: B Power Flow and Link Inductancesmentioning

confidence: 99%

A Multiactive Bridge Converter With Inherently Decoupled Power Flows

Bandyopadhyay

Purgat

Qin

et al. 2021

IEEE Trans. Power Electron.

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Multi-active bridge converters (MAB) have become a widely-researched candidate for the integration of multiple renewable sources, storage and loads for a variety of applications, from robust smart grids to more-electric aircraft. Connecting multiple dc ports reduces power conversion stress, improves efficiency, reduces material billing and increases power density. However, the power flows between the ports of a MAB converter are magnetically coupled via the high-frequency (HF) transformer, making it difficult to control. This paper presents a MAB converter configuration with a rigid voltage source on the magnetizing inductance of the transformer resulting in inherently decoupled power flows. As a result, the configuration allows independent power flow control tuning of the rest of the ports. The theory behind the power flow decoupling of the proposed MAB configuration is analyzed in detail using a reduced-order model. A 2-kW, 100 kHz Si-C based four-port MAB converter laboratory prototype is built and tested, showing completely decoupled control loops with fast transient response regardless of their control bandwidths. The proposed configuration therefore makes the operation and design of the MAB family of converters much more feasible for any number of ports and precludes the need for a high-performance dynamic decoupling controller.Index Terms-DC-DC converter, decoupled power flow management, multi-active-bridge converter, multiwinding transformer.

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Section: B Power Flow and Link Inductancesmentioning

confidence: 99%

A Multiactive Bridge Converter With Inherently Decoupled Power Flows

Bandyopadhyay

Purgat

Qin

et al. 2021

IEEE Trans. Power Electron.

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“…In this modulation strategy, the phase-shift angles (φ) of the individual ports are used to control the inter-port power flows. A linearized small signal gain matrix for a four-port MAB converter [8], [12], [25] at a certain operating point can be represented as:…”

Section: B Small Signal Model Of Mab Convertermentioning

confidence: 99%

Decoupling Control of Multiactive Bridge Converters Using Linear Active Disturbance Rejection

Bandyopadhyay

Qin

Bauer

2021

IEEE Trans. Ind. Electron.

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Multi-active bridge converter (MAB) is a promising solution for integrating multiple renewable sources, storage, and loads for various applications. However, the MAB converter is challenging to control due to the inherent coupling between the port power flows. To that end, this paper presents a decoupling control strategy based on linear active disturbance rejection control (LADRC). The proposed controller observes the coupling disturbance using a linear extended state observer (LESO) and subsequently rejects the observed disturbance resulting in dynamic decoupling. Experiments conducted on a 2-kW 100 kHz Si-C based four-port MAB converter laboratory prototype illustrates the decoupling performance of the proposed control strategy. Compared to the traditional decoupling control strategy, the proposed approach is decentralized and model-independent, only requiring information regarding its order.

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“…En [9] se investiga el modelo de pequeña señal de la arquitectura de procesamiento de potencia diferencial usando múltiples puentes activos (MAB-DPP). La arquitectura se muestra en la Figura 15.…”

Section: Aplicaciones Orientadas a Procesamiento Diferencial De Potenciaunclassified

“…En [40,41] se presenta la aplicación de CMP multidevanado para el diseño de transformadores de estado solido. En estos estudios se contempla un transformador de estado Figura 15: Procesamiento diferencial de potencia usando convertidores multipuerto aislados [9]. solido de 4 puertos, tres de los cuales están formados por puentes completos de MOS-FETs convirtiéndolos en puertos bidireccionales y uno de los puertos esta formado por un puente de diodos, lo que lo convierte en un puerto unidireccional.…”

Section: Otras Aplicacionesunclassified

See 1 more Smart Citation

Power Distribution Algorithm and Steady-State Operation Analysis of a Modular Multiactive Bridge Converter

Ortega

Zumel

Fernández

et al. 2020

IEEE Trans. Transp. Electrific.

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Voltaje de la fuente o carga conectada en un puerto v k V Voltaje instantáneo del puente del módulo k v p V v ac reflejado al lado del primario del transformador v A,k V Voltaje drenador-fuente del MOSFET s3 en módulo kth v L k V Voltaje instantáneo en la inductancia del módulo k v ac V Voltaje instantáneo del bus AC XVIII Acrónimos Acrónimos ADC Análogo a Digital AMR Anisotropic Magneto Resistive CA Corriente alterna (Alternating current) CC Corriente continua (Direct Current) CMP

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Small Signal Model for Very-Large-Scale Multi-Active-Bridge Differential Power Processing (MAB-DPP) Architecture

Cited by 11 publications

References 13 publications

A Multiactive Bridge Converter With Inherently Decoupled Power Flows

A Multiactive Bridge Converter With Inherently Decoupled Power Flows

Decoupling Control of Multiactive Bridge Converters Using Linear Active Disturbance Rejection

Power Distribution Algorithm and Steady-State Operation Analysis of a Modular Multiactive Bridge Converter

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