Impact of Nonlinear Dynamics on Converter DQ Impedance Measurement

Hong Gong; Dongsheng Yang; Xiongfei Wang

doi:10.1109/COMPEL.2019.8769701

Impact of Nonlinear Dynamics on Converter DQ Impedance Measurement

Hong Gong
, Dongsheng Yang
, Xiongfei Wang

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

4 Citations (Scopus)

Abstract

This paper investigates the difference in the DQ impedance measurement using different perturbation signals. It is revealed that the nonlinear dynamics of converters in the dq-frame generate frequency-coupling responses which are overlapped at different frequencies when the multi-frequency perturbation is injected, leading to the inaccurate impedance measurement result. On the contrary, with the single-frequency injection, the frequency-coupling responses can be easily identified and removed in the impedance measurement. Simulation and experimental results confirm the correctness of the theoretical analysis.

Original language	English
Title of host publication	Proceedings of 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL)
Number of pages	6
Publisher	IEEE Press
Publication date	Jun 2019
Article number	8769701
ISBN (Electronic)	978-1-7281-1842-0
DOIs	https://doi.org/10.1109/COMPEL.2019.8769701
Publication status	Published - Jun 2019
Event	2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL) - Toronto, Canada Duration: 17 Jun 2019 → 20 Jun 2019

Conference

Conference	2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL)
Country/Territory	Canada
City	Toronto
Period	17/06/2019 → 20/06/2019

Series	IEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN	1093-5142

Keywords

Impedance measurement
Multi-frequency injection
Nonlinear dynamics
Singlefrequency injection
Small-signal model

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10.1109/COMPEL.2019.8769701

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Cite this

@inproceedings{950ab8eeb9e844eaac8a04b5d89e3507,

title = "Impact of Nonlinear Dynamics on Converter DQ Impedance Measurement",

abstract = "This paper investigates the difference in the DQ impedance measurement using different perturbation signals. It is revealed that the nonlinear dynamics of converters in the dq-frame generate frequency-coupling responses which are overlapped at different frequencies when the multi-frequency perturbation is injected, leading to the inaccurate impedance measurement result. On the contrary, with the single-frequency injection, the frequency-coupling responses can be easily identified and removed in the impedance measurement. Simulation and experimental results confirm the correctness of the theoretical analysis.",

keywords = "Impedance measurement, Multi-frequency injection, Nonlinear dynamics, Singlefrequency injection, Small-signal model",

author = "Hong Gong and Dongsheng Yang and Xiongfei Wang",

year = "2019",

month = jun,

doi = "10.1109/COMPEL.2019.8769701",

language = "English",

series = "IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) ",

publisher = "IEEE Press",

booktitle = "Proceedings of 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL)",

note = "2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL) ; Conference date: 17-06-2019 Through 20-06-2019",

}

Gong, H, Yang, D & Wang, X 2019, Impact of Nonlinear Dynamics on Converter DQ Impedance Measurement. in Proceedings of 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL)., 8769701, IEEE Press, IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) , 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL), Toronto, Canada, 17/06/2019. https://doi.org/10.1109/COMPEL.2019.8769701

Impact of Nonlinear Dynamics on Converter DQ Impedance Measurement. / Gong, Hong; Yang, Dongsheng; Wang, Xiongfei.
Proceedings of 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL). IEEE Press, 2019. 8769701 (IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) ).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Impact of Nonlinear Dynamics on Converter DQ Impedance Measurement

AU - Gong, Hong

AU - Yang, Dongsheng

AU - Wang, Xiongfei

PY - 2019/6

Y1 - 2019/6

N2 - This paper investigates the difference in the DQ impedance measurement using different perturbation signals. It is revealed that the nonlinear dynamics of converters in the dq-frame generate frequency-coupling responses which are overlapped at different frequencies when the multi-frequency perturbation is injected, leading to the inaccurate impedance measurement result. On the contrary, with the single-frequency injection, the frequency-coupling responses can be easily identified and removed in the impedance measurement. Simulation and experimental results confirm the correctness of the theoretical analysis.

AB - This paper investigates the difference in the DQ impedance measurement using different perturbation signals. It is revealed that the nonlinear dynamics of converters in the dq-frame generate frequency-coupling responses which are overlapped at different frequencies when the multi-frequency perturbation is injected, leading to the inaccurate impedance measurement result. On the contrary, with the single-frequency injection, the frequency-coupling responses can be easily identified and removed in the impedance measurement. Simulation and experimental results confirm the correctness of the theoretical analysis.

KW - Impedance measurement

KW - Multi-frequency injection

KW - Nonlinear dynamics

KW - Singlefrequency injection

KW - Small-signal model

UR - https://www.scopus.com/pages/publications/85070218508

U2 - 10.1109/COMPEL.2019.8769701

DO - 10.1109/COMPEL.2019.8769701

M3 - Article in proceeding

T3 - IEEE Workshop on Control and Modeling for Power Electronics (COMPEL)

BT - Proceedings of 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL)

PB - IEEE Press

T2 - 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL)

Y2 - 17 June 2019 through 20 June 2019

ER -

Impact of Nonlinear Dynamics on Converter DQ Impedance Measurement

Abstract

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Keywords

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Impedance Measurement and Estimation of Three-Phase Voltage-Source Converters

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