Open-Loop Power Sharing of Three-Port DC-DC Resonant Converters

Tran, Yan-Kim; Freijedo, Francisco D.; Dujić, Dražen

doi:10.1109/apec.2019.8722142

Cited by 15 publications

(12 citation statements)

References 20 publications

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“…In DISO mode, the sharing of the power injected by the two active ports i and j depends on the splitting of the resonant tank, i.e. on the ratio of the tank impedance [42]. In the ideal case where the DC-bus voltage v DC i equals exactly n i /n j v DC j , the magnetising current i m as well as the power p i and p j from the two active ports are shared as…”

Section: Resonant Stagementioning

confidence: 99%

“…In practice, both active terminals cannot be considered fully decoupled from each other, since the perturbation currents i 1 , i 3 depend on the load connected at terminal 2, the dynamics of the DC-transformer and the operation mode (cf. [42,45]. By definition, Y M (0) is a very high gain in the SRC base dc-transformer operated close to resonant frequency (load independent DC gain).…”

Section: Modelling a Single Submodulementioning

confidence: 99%

“…Therefore,

Y_{M} false(s false) ≃ Y_{M} false(0 false)

and

Y_{C} false(s false) ≃ Y_{C} false(0 false)

are reasonable assumptions for the modelling. Calculation of resonant stages dc gains is reported in the literature [42, 45]. By definition,

Y_{M} false(0 false)

is a very high gain in the SRC base dc‐transformer operated close to resonant frequency (load independent DC gain).…”

Section: Modelling and Controlmentioning

confidence: 99%

v_{normalD C_{i}}

equals exactly

()(, n_{i} / n_{j}) v_{normalD C_{j}}

, the magnetising current

i_{m}

as well as the power

p_{i}

and

p_{j}

from the two active ports are shared as

\frac{p_{i}}{p_{j}} = \frac{i_{{normalm}_{i}}}{(n_{j} / n_{i}) i_{{normalm}_{j}}} = \frac{()(, n_{i}^{2} / n_{j}^{2}) L_{j}}{L_{i}} and i_{normalm} = i_{{normalm}_{i}} + \frac{n_{j}}{n_{i}} i_{m_{j}}

In other words, the ratio of the resonant tank defines the natural power‐sharing in DISO mode, which makes it a design parameter to take in consideration according to the rated powers of each port.…”

Section: Meg Converter Topologymentioning

confidence: 99%

“…The same approximation applies for the circulating current and

Y_{C} false(s false) ≃ Y_{C} false(0 false)

holds, following similar reason as above. These gains mostly depend on the MFT parameters and system losses [42].…”

Section: Modelling and Controlmentioning

confidence: 99%

See 4 more Smart Citations

Multiport energy gateway

Tran

Freijedo

Dujić

2019

IET Electric Power Applications

Self Cite

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Medium-voltage-direct-current collection and distribution grids are being considered for emerging applications, and require enabling power electronic technologies. Medium-voltage high power DC-DC converters are one of the solutions that will play an important role in future energy systems. This study presents a novel bidirectional multiport power electronic converter, interfacing medium-voltage and low-voltage distribution grids while integrating distributed energy storage elements, such as batteries and super-capacitors. The multiport energy gateway concept is based on a modular input-series output-parallel topology includes medium frequency transformer for the galvanic isolation, and combines open-loop and closed-loop operated converter stages. Comprehensive converter design aspects and operating principles are presented and discussed considering representative cases of studies. The validity of the approaches is proved by simulation and experimental results obtained on a small scale prototype.

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Section: Resonant Stagementioning

confidence: 99%

Section: Modelling a Single Submodulementioning

confidence: 99%

“…Therefore,

Y_{M} false(s false) ≃ Y_{M} false(0 false)

and

Y_{C} false(s false) ≃ Y_{C} false(0 false)

are reasonable assumptions for the modelling. Calculation of resonant stages dc gains is reported in the literature [42, 45]. By definition,

Y_{M} false(0 false)

is a very high gain in the SRC base dc‐transformer operated close to resonant frequency (load independent DC gain).…”

Section: Modelling and Controlmentioning

confidence: 99%

v_{normalD C_{i}}

equals exactly

()(, n_{i} / n_{j}) v_{normalD C_{j}}

, the magnetising current

i_{m}

as well as the power

p_{i}

and

p_{j}

from the two active ports are shared as

\frac{p_{i}}{p_{j}} = \frac{i_{{normalm}_{i}}}{(n_{j} / n_{i}) i_{{normalm}_{j}}} = \frac{()(, n_{i}^{2} / n_{j}^{2}) L_{j}}{L_{i}} and i_{normalm} = i_{{normalm}_{i}} + \frac{n_{j}}{n_{i}} i_{m_{j}}

Section: Meg Converter Topologymentioning

confidence: 99%

“…The same approximation applies for the circulating current and

Y_{C} false(s false) ≃ Y_{C} false(0 false)

holds, following similar reason as above. These gains mostly depend on the MFT parameters and system losses [42].…”

Section: Modelling and Controlmentioning

confidence: 99%

See 3 more Smart Citations

Multiport energy gateway

Tran

Freijedo

Dujić

2019

IET Electric Power Applications

Self Cite

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A Review on Advanced Control Techniques for Multi‐Input Power Converters for Various Applications

Priyanka

Duraisamy

2023

Smart Grids for Smart Cities Volume 1

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Fuel cell‐based topologies and multi‐input DC–DC power converters for hybrid electric vehicles: A comprehensive review

Pathak

Yadav

Padmanaban

et al. 2022

IET Generation Trans & Dist

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In the last few decades, the utilization of fuel cells (FCs) in the automotive industry has created much attention due to easy use, modular structure, and higher efficacy. In the future, technological evolutions reveal that FC driven electric vehicles (EVs) will grow at a rapid pace and will become an excellent alternative to conventional vehicles. This paper discusses a detailed topological classification of the FC‐based hybrid electric vehicle (FCHEV). In these FCHEVs, one of the critical elements is the DC–DC power converter unit. The hybridization of FCs with the other power sources requires more converter units that make the system complex. A multi‐input DC–DC power converter is used to connect more than one energy source to reduce the system's complexity and improve the overall system efficacy. In this survey, numerous articles have been considered and examined vividly. An assessment of present and future scenarios of FCs based power source topologies and multi‐input DC–DC power converter topologies used in HEV is presented. This survey provides a deep insight into the topic for the researchers and engineers working in this field.

show abstract

Open-Loop Power Sharing of Three-Port DC-DC Resonant Converters

Cited by 15 publications

References 20 publications

Multiport energy gateway

Multiport energy gateway

A Review on Advanced Control Techniques for Multi‐Input Power Converters for Various Applications

Fuel cell‐based topologies and multi‐input DC–DC power converters for hybrid electric vehicles: A comprehensive review

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