Impedance Strengthening and Weakening Networks for Power Converter Analysis and Design

Guidong Zhang; Haodong Chen; Samson S. Yu; Chi K. Tse

doi:10.1109/TPEL.2021.3063235

Impedance Strengthening and Weakening Networks for Power Converter Analysis and Design

Guidong Zhang^*, Haodong Chen, Samson S. Yu, Chi K. Tse

^*Corresponding author for this work

Department of Electrical Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

16 Citations (Scopus)

Abstract

Proposed in this letter is the concept of impedance strengthening and weakening (ISW) networks, which can be used to describe the working mechanism of power converters and lead to a generalized impedance-based design principle. Impedance strengthening in a converter refers to the load impedance being higher than the input equivalent impedance, leading to voltage gain. Conversely, impedance weakening results in voltage reduction. In this study, the idea of ISW networks is applied for understanding existing converters, and a novel converter design method is then proposed. Experiments are conducted on a few new converter topologies to demonstrate the application of the proposed ISW concept.

Original language	English
Pages (from-to)	9717-9721
Journal	IEEE Transactions on Power Electronics
Volume	36
Issue number	9
Online published	3 Mar 2021
DOIs	https://doi.org/10.1109/TPEL.2021.3063235
Publication status	Published - Sept 2021

Research Keywords

Design methodology
dynamic voltage gain
Equivalent circuits
Impedance
Impedance strengthening
impedance weakening
Inductors
Matrix converters
static voltage gain
step-up and step-down converters
Switches
Switching circuits

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title = "Impedance Strengthening and Weakening Networks for Power Converter Analysis and Design",

abstract = "Proposed in this letter is the concept of impedance strengthening and weakening (ISW) networks, which can be used to describe the working mechanism of power converters and lead to a generalized impedance-based design principle. Impedance strengthening in a converter refers to the load impedance being higher than the input equivalent impedance, leading to voltage gain. Conversely, impedance weakening results in voltage reduction. In this study, the idea of ISW networks is applied for understanding existing converters, and a novel converter design method is then proposed. Experiments are conducted on a few new converter topologies to demonstrate the application of the proposed ISW concept.",

keywords = "Design methodology, dynamic voltage gain, Equivalent circuits, Impedance, Impedance strengthening, impedance weakening, Inductors, Matrix converters, static voltage gain, step-up and step-down converters, Switches, Switching circuits",

author = "Guidong Zhang and Haodong Chen and Yu, {Samson S.} and Tse, {Chi K.}",

year = "2021",

month = sep,

doi = "10.1109/TPEL.2021.3063235",

language = "English",

volume = "36",

pages = "9717--9721",

journal = "IEEE Transactions on Power Electronics",

issn = "0885-8993",

publisher = "IEEE",

number = "9",

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TY - JOUR

T1 - Impedance Strengthening and Weakening Networks for Power Converter Analysis and Design

AU - Zhang, Guidong

AU - Chen, Haodong

AU - Yu, Samson S.

AU - Tse, Chi K.

PY - 2021/9

Y1 - 2021/9

N2 - Proposed in this letter is the concept of impedance strengthening and weakening (ISW) networks, which can be used to describe the working mechanism of power converters and lead to a generalized impedance-based design principle. Impedance strengthening in a converter refers to the load impedance being higher than the input equivalent impedance, leading to voltage gain. Conversely, impedance weakening results in voltage reduction. In this study, the idea of ISW networks is applied for understanding existing converters, and a novel converter design method is then proposed. Experiments are conducted on a few new converter topologies to demonstrate the application of the proposed ISW concept.

AB - Proposed in this letter is the concept of impedance strengthening and weakening (ISW) networks, which can be used to describe the working mechanism of power converters and lead to a generalized impedance-based design principle. Impedance strengthening in a converter refers to the load impedance being higher than the input equivalent impedance, leading to voltage gain. Conversely, impedance weakening results in voltage reduction. In this study, the idea of ISW networks is applied for understanding existing converters, and a novel converter design method is then proposed. Experiments are conducted on a few new converter topologies to demonstrate the application of the proposed ISW concept.

KW - Design methodology

KW - dynamic voltage gain

KW - Equivalent circuits

KW - Impedance

KW - Impedance strengthening

KW - impedance weakening

KW - Inductors

KW - Matrix converters

KW - static voltage gain

KW - step-up and step-down converters

KW - Switches

KW - Switching circuits

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85102281264&origin=recordpage

U2 - 10.1109/TPEL.2021.3063235

DO - 10.1109/TPEL.2021.3063235

M3 - RGC 21 - Publication in refereed journal

SN - 0885-8993

VL - 36

SP - 9717

EP - 9721

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

IS - 9

ER -

Impedance Strengthening and Weakening Networks for Power Converter Analysis and Design

Abstract

Research Keywords

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