IEEE Electrification - June 2021 - 9

Partial-Power
Interconnection
ac
ac
dc
dc
ac
MWT
(a)
S1
vdc Cbus
S2
S3
iLa
va
S4
Lc
vc
S5
VBSS
Cbus
S6
S7
iLb
vb
S8
1 : 1 : n
(b)
Figure 3. (a) A partial-power processing architecture considering the MTB dc-dc converter and
(b) system concept employing a three-port dc-dc converter and the partial power power processing
through the storage connection.
magnetic aspects), software packages
like PLECS and PSIM are widely
adopted for converter-level analyses.
The possible interaction between
the converter and control strategies
can be performed in a holistic system
analysis with MATLAB/Simulink,
which allows the integration of several
models. Besides the power converter
and its control system, when
the focus should be on the accurate
modeling of the MWT in terms of
stray parameters, power loss
estimation due to high-frequency
effects, and cross-coupling effects
among the multiples windings, the
so-called finite element method
software packages, like ANSYS
Maxwell, present a promising solution
for the analysis of magnetic elements.
Finally, from the system level,
software packages such as PSCAD
allow the interaction among the several
elements of the system (power
converter, distributed generators,
battery, and so on) with the grid.
Lb
iLc
S9
iLa
S10
S11
Cbus
S12
vEV
La
ac
dc
Storage
For Further Reading
T. Pereira, F. Hoffmann, R. G. Zhu, and
M. G. Liserre, " A comprehensive assessment
of multiwinding transformerbased
DC-DC converters, " IEEE Trans.
Power Electron., early access, 2021. doi:
10.1109/TPEL.2021.3064302.
F. Hoffmann, T. Pereira and M.
Liserre, " " Isolated DC/DC multimode
converter with energy storage integration
for charging stations, " in Proc. IEEE
Energy Conversion Congr. Expo. (ECCE),
Detroit, MI, 2020, pp. 633-640. doi:
10.1109/ECCE44975.2020.9235471.
F. Hoffmann, J. Person, M. Andresen,
M. Liserre, F. Freijedo, and T. Wijekoon,
" A multiport partial power processing
converter with energy storage integration
for EV stationary charging, " IEEE J.
Emerg. Sel. Topics Power Electron., 2021, to
be published.
M. Liserre. " PELS Webinar: opportunities
and challenges of multiwinding transformer-based
DC-DC converters. " IEEE
PELS. https://resourcecenter.ieee-pels.org/
education/webinars/PELSWEB030921V
.html (accessed Mar. 21, 2021).
Biographies
Marco Liserre (ml@tf.uni-kiel.de) is
with the Chair of Power Electronics,
University of Kiel, Kiel, SchleswigHolstein,
24143, Germany.
Felix Hoffmann (fho@tf.uni-kiel.de)
is with the Chair of Power Electronics,
University of Kiel, Kiel, SchleswigHolstein,
24143, Germany.
Thiago Pereira (tp@tf.uni-kiel.de) is
with the Chair of Power Electronics,
University of Kiel, Kiel, SchleswigHolstein,
24143, Germany.
dc
EV
Station
The concept of partialpower-processing
converter
topologies
has been proposed to
arrange an energy
source as a series
or a parallel element
with the load.
IEEE Electrification Magazine / JUNE 2021
9

https://resourcecenter.ieee-pels.org/education/webinars/PELSWEB030921V.html https://resourcecenter.ieee-pels.org/education/webinars/PELSWEB030921V.html https://resourcecenter.ieee-pels.org/education/webinars/PELSWEB030921V.html

IEEE Electrification - June 2021

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