Port Controlled Hamiltonian Modeling and IDA-PBC Control of Dual Active Bridge Converters for DC Microgrids

Cupelli, Marco; Gurumurthy, Sriram Karthik; Bhanderi, Siddharth Kiranbhai; Yang, Zhiqing; Joebges, Philipp; Monti, Antonello; Doncker, Rik W. De

doi:10.1109/tie.2019.2901645

Cited by 60 publications

(36 citation statements)

References 27 publications

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“…In order to link the elements of Equation 1with the main Figure 1, it is underlined that i x and i u indicate the output and input signal, respectively, of the energy resources and devices block connected to the unit-level/primary control block. The system dynamics given by Equation (1) can be expressed in the dissipative-Hamiltonian or port-controlled Hamiltonian forms [36][37][38] to enable the design of stabilizing controllers and also to provide an easy way of expressing the units interconnections that are represented at the higher level of the physical system (electrical network). Every energy resource unit is equipped with a dedicated controller, usually a microcontroller device, implementing the unit-level or primary control ( Figure 1) that operates in a completely decentralized manner, i.e., requires only local information from the particular energy unit [39].…”

Section: Energy Resources and Primary Control Design And Analysismentioning

confidence: 99%

Towards the Integration of Modern Power Systems into a Cyber–Physical Framework

2020

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The cyber–physical system (CPS) architecture provides a novel framework for analyzing and expanding research and innovation results that are essential in managing, controlling and operating complex, large scale, industrial systems under a holistic insight. Power systems constitute such characteristically large industrial structures. The main challenge in deploying a power system as a CPS lies on how to combine and incorporate multi-disciplinary, core, and advanced technologies into the specific for this case, social, environmental, economic and engineering aspects. In order to substantially contribute towards this target, in this paper, a specific CPS scheme that clearly describes how a dedicated cyber layer is deployed to manage and interact with comprehensive multiple physical layers, like those found in a large-scale modern power system architecture, is proposed. In particular, the measurement, communication, computation, control mechanisms, and tools installed at different hierarchical frames that are required to consider and modulate the social/environmental necessities, as well as the electricity market management, the regulation of the electric grid, and the power injection/absorption of the controlled main devices and distributed energy resources, are all incorporated in a common CPS framework. Furthermore, a methodology for investigating and analyzing the dynamics of different levels of the CPS architecture (including physical devices, electricity and communication networks to market, and environmental and social mechanisms) is provided together with the necessary modelling tools and assumptions made in order to close the loop between the physical and the cyber layers. An example of a real-world industrial micro-grid that describes the main aspects of the proposed CPS-based design for modern electricity grids is also presented at the end of the paper to further explain and visualize the proposed framework.

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Section: Energy Resources and Primary Control Design And Analysismentioning

confidence: 99%

Towards the Integration of Modern Power Systems into a Cyber–Physical Framework

2020

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“…UE to the rapid development of power electronics applications especially for the dual active bridge converter [1][2][3], wireless power transfer [4][5][6], and electric vehicle (EV) tractions and charging [7][8][9], high frequency and high power magnetic components have become the key to further improvement of the power density and system efficiency [10].…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline Powder Cores for High-Power High-Frequency Applications

Jiang

Ghosh

et al. 2020

IEEE Trans. Power Electron.

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Soft magnetic composites (SMCs) based magnetic cores are attractive in high frequency inductor design. The desired overall core permeability of SMC core can be achieved by adjusting the powder size, addition of insulation material and phosphoric acid, and pressure during the preparation process to reduce the air gap loss and ease the inductor design. The nanocrystalline alloy (Fe-Cu-Nb-Si-B) is an emerging SMC with high saturation flux density and low hysteresis loss, showing potential suitability for SMC based magnetic cores. To date, nanocrystalline alloys are mostly used in form of laminated ribbon for magnetic cores and nanocrystalline powder SMCs have been seldom used in practice. Also, neither experimental validation nor comparison with other commercialized and commonly used SMC cores has been reported. In this paper, the structure and manufacturing process of nanocrystalline powder cores are introduced. The calculation of core loss is defined for the nanocrystalline powder core. The characteristics and performance of the nanocrystalline powder toroidal core are compared with those of existing commercial SMC cores such as Fe-Si powder (X flux), Fe-Ni powder (High flux), Fe-Si-Al powder (Kool Mµ), Fe-Ni-Mo powder (MPP). Experimental results are conducted at frequencies from 100 kHz to 600 kHz to verify the loss calculation and feasibility of this new nanocrystalline powder core.

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“…Besides, IDA-PBC gives excellent tracking of time-varying signals such as the current reference in case of non-linear loads [15]. PBC has been investigated extensively for the control of dcdc converters [16][17][18][19][20], rectifiers [21,22], single-phase inverters [23][24][25][26] and most recently for the control of three-phase inverters [15,[27][28][29][30][31][32], modular multilevel converter [33,34], active power filter [35], dual active bridge converter [36] and solid-state transformers [37]. Serra et al [27] have applied IDA-PBC design procedure for voltage control of stand-alone 3 ϕ inverter and have compared its performance with a PI-based controller.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, IDA–PBC gives excellent tracking of time‐varying signals such as the current reference in case of non‐linear loads [15]. PBC has been investigated extensively for the control of dc–dc converters [16–20], rectifiers [21, 22], single‐phase inverters [23–26] and most recently for the control of three‐phase inverters [15, 27–32], modular multilevel converter [33, 34], active power filter [35], dual active bridge converter [36] and solid‐state transformers [37].…”

Section: Introductionmentioning

confidence: 99%

Controller design, analysis and testing of a three‐phase VSI using IDA–PBC approach

Gupta

Chatterjee

Doolla

2020

IET Power Electronics

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A voltage-source inverter (VSI) is a key component of a distributed generation unit and an uninterruptible power supply. In this study, a three-phase VSI control using interconnection and damping assignment passivity-based control (IDA-PBC) approach has been revisited and analysed on aspects such as voltage gain, output impedance, transient response, stability and steady-state error. It is shown that in the case of accurately known filter parameters and perfectly zero initial conditions, theoretically, the voltage controller would exhibit unity voltage gain and zero output impedance. It is also shown that the IDA-PBC-based voltage controller exhibits a second-order response to a step input. This property has been utilised to propose a novel systematic procedure for tuning of the IDA-PBC gains based on the transient response specifications. The tuning method reveals that the gains for the outer voltage and inner current loops are related to each other and should not be separately tuned. The presented analysis and the proposed tuning method for controller gain have been tested through simulation studies. The concepts were further validated on a laboratory scale prototype of a three-phase VSI for balanced, unbalanced and non-linear loads.

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Port Controlled Hamiltonian Modeling and IDA-PBC Control of Dual Active Bridge Converters for DC Microgrids

Cited by 60 publications

References 27 publications

Towards the Integration of Modern Power Systems into a Cyber–Physical Framework

Towards the Integration of Modern Power Systems into a Cyber–Physical Framework

Nanocrystalline Powder Cores for High-Power High-Frequency Applications

Controller design, analysis and testing of a three‐phase VSI using IDA–PBC approach

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