A Bidirectional Isolated Multiport DC-DC Converter for DC grid

Hanwen Zhang; Yanbo Wang; Zhe Chen

doi:10.1109/SPEC52827.2021.9709455

A Bidirectional Isolated Multiport DC-DC Converter for DC grid

Hanwen Zhang, Yanbo Wang, Zhe Chen

Department of Electronic & Electrical Engineering

Aalborg University

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

6 Citations (SciVal)

Abstract

Multiport DC/DC converters (MPC) is becoming a promising configuration to integrate DC grids with different voltage levels. This paper presents a neutral-point clamped (NPC) converter-based MPC (NMPC), which is developed to interconnect medium voltage DC (MVDC) grid and low voltage DC (LVDC) grid. The circuit topology and operation principle of NMPC is first introduced. The soft-switching operation based on zero-voltage switching (ZVS) is developed to reduce switching loss. Simulation verification is implemented to validate the proposed MPC. The proposed NMPC may perform independent bidirectional power flow control among different ports without using decoupling algorithms. The proposed NMPC enables high voltage operation due to the application of 3-level converter. The power characterization of the NMPC is simple, which is beneficial to realize the decoupling power flow control among the interconnected DC ports.

Original language	English
Title of host publication	2021 IEEE Southern Power Electronics Conference, SPEC 2021
DOIs	https://doi.org/10.1109/SPEC52827.2021.9709455
Publication status	Published - 16 Feb 2022
Event	2021 IEEE Southern Power Electronics Conference (SPEC) - Kigali, Rwanda Duration: 6 Dec 2021 → 9 Dec 2021

Conference

Conference	2021 IEEE Southern Power Electronics Conference (SPEC)
Country/Territory	Rwanda
City	Kigali
Period	6/12/21 → 9/12/21

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10.1109/SPEC52827.2021.9709455

Cite this

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title = "A Bidirectional Isolated Multiport DC-DC Converter for DC grid",

abstract = "Multiport DC/DC converters (MPC) is becoming a promising configuration to integrate DC grids with different voltage levels. This paper presents a neutral-point clamped (NPC) converter-based MPC (NMPC), which is developed to interconnect medium voltage DC (MVDC) grid and low voltage DC (LVDC) grid. The circuit topology and operation principle of NMPC is first introduced. The soft-switching operation based on zero-voltage switching (ZVS) is developed to reduce switching loss. Simulation verification is implemented to validate the proposed MPC. The proposed NMPC may perform independent bidirectional power flow control among different ports without using decoupling algorithms. The proposed NMPC enables high voltage operation due to the application of 3-level converter. The power characterization of the NMPC is simple, which is beneficial to realize the decoupling power flow control among the interconnected DC ports.",

author = "Hanwen Zhang and Yanbo Wang and Zhe Chen",

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note = "2021 IEEE Southern Power Electronics Conference (SPEC) ; Conference date: 06-12-2021 Through 09-12-2021",

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T1 - A Bidirectional Isolated Multiport DC-DC Converter for DC grid

AU - Zhang, Hanwen

AU - Wang, Yanbo

AU - Chen, Zhe

PY - 2022/2/16

Y1 - 2022/2/16

N2 - Multiport DC/DC converters (MPC) is becoming a promising configuration to integrate DC grids with different voltage levels. This paper presents a neutral-point clamped (NPC) converter-based MPC (NMPC), which is developed to interconnect medium voltage DC (MVDC) grid and low voltage DC (LVDC) grid. The circuit topology and operation principle of NMPC is first introduced. The soft-switching operation based on zero-voltage switching (ZVS) is developed to reduce switching loss. Simulation verification is implemented to validate the proposed MPC. The proposed NMPC may perform independent bidirectional power flow control among different ports without using decoupling algorithms. The proposed NMPC enables high voltage operation due to the application of 3-level converter. The power characterization of the NMPC is simple, which is beneficial to realize the decoupling power flow control among the interconnected DC ports.

AB - Multiport DC/DC converters (MPC) is becoming a promising configuration to integrate DC grids with different voltage levels. This paper presents a neutral-point clamped (NPC) converter-based MPC (NMPC), which is developed to interconnect medium voltage DC (MVDC) grid and low voltage DC (LVDC) grid. The circuit topology and operation principle of NMPC is first introduced. The soft-switching operation based on zero-voltage switching (ZVS) is developed to reduce switching loss. Simulation verification is implemented to validate the proposed MPC. The proposed NMPC may perform independent bidirectional power flow control among different ports without using decoupling algorithms. The proposed NMPC enables high voltage operation due to the application of 3-level converter. The power characterization of the NMPC is simple, which is beneficial to realize the decoupling power flow control among the interconnected DC ports.

UR - https://vbn.aau.dk/en/publications/c3edf728-93be-4f1f-9b69-7dd374dd7042

U2 - 10.1109/SPEC52827.2021.9709455

DO - 10.1109/SPEC52827.2021.9709455

M3 - Chapter in a published conference proceeding

SN - 978-1-6654-3623-6

SN - 978-1-6654-3624-3

BT - 2021 IEEE Southern Power Electronics Conference, SPEC 2021

T2 - 2021 IEEE Southern Power Electronics Conference (SPEC)

Y2 - 6 December 2021 through 9 December 2021

ER -

A Bidirectional Isolated Multiport DC-DC Converter for DC grid

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