Mitigating the Harmonics of Parallel-Inverter Systems Considering Nonlinear Loads and Deadtime

Jiazhe Liu; Yang Qi; Yi Tang

doi:10.1109/ECCE.2018.8558446

Mitigating the Harmonics of Parallel-Inverter Systems Considering Nonlinear Loads and Deadtime

Jiazhe Liu
, Yang Qi
, Yi Tang

Nanyang Technological University

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

1 引用（Scopus）

摘要

The well-known droop control can ensure real and reactive power properly shared among parallel inverters. However, the effectiveness of droop control is limited in the fundamental-frequency domain and cannot address the harmonic issues. According to previous studies, the harmonic currents generated by nonlinear loads can distort the point of common coupling (PCC) voltage, and negative/capacitive virtual impedances are normally adopted to solve this issue by compensating line impedances. In this paper, it is shown that apart from nonlinear loads, switching deadtime can also introduce circulating current harmonics. To simultaneously suppress the circulating current harmonics and mitigate the PCC voltage harmonics, a novel control strategy is proposed based on virtual harmonic impedance controls. The feasibility of the proposed control strategy is verified through experiments.

源语言	英语
主期刊名	2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
出版商	Institute of Electrical and Electronics Engineers Inc.
页	5559-5564
页数	6
ISBN（电子版）	9781479973118
DOI	https://doi.org/10.1109/ECCE.2018.8558446
出版状态	已出版 - 3 12月 2018
已对外发布	是
活动	10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, 美国期限: 23 9月 2018 → 27 9月 2018

出版系列

姓名	2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

会议

会议	10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
国家/地区	美国
市	Portland
时期	23/09/18 → 27/09/18

联合国可持续发展目标

此成果有助于实现下列可持续发展目标：

可持续发展目标 7 经济适用的清洁能源

访问文件

10.1109/ECCE.2018.8558446

其它文件与链接

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引用此

Liu, J., Qi, Y., & Tang, Y. (2018). Mitigating the Harmonics of Parallel-Inverter Systems Considering Nonlinear Loads and Deadtime. 在 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018 (页码 5559-5564). 文章 8558446 (2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2018.8558446

@inproceedings{567767f062124b3f8d9f3f3bd4e6f3d7,

title = "Mitigating the Harmonics of Parallel-Inverter Systems Considering Nonlinear Loads and Deadtime",

abstract = "The well-known droop control can ensure real and reactive power properly shared among parallel inverters. However, the effectiveness of droop control is limited in the fundamental-frequency domain and cannot address the harmonic issues. According to previous studies, the harmonic currents generated by nonlinear loads can distort the point of common coupling (PCC) voltage, and negative/capacitive virtual impedances are normally adopted to solve this issue by compensating line impedances. In this paper, it is shown that apart from nonlinear loads, switching deadtime can also introduce circulating current harmonics. To simultaneously suppress the circulating current harmonics and mitigate the PCC voltage harmonics, a novel control strategy is proposed based on virtual harmonic impedance controls. The feasibility of the proposed control strategy is verified through experiments.",

keywords = "Deadtime, Harmonic suppression, Nonlinear load, Power converter, Virtual impedance",

author = "Jiazhe Liu and Yang Qi and Yi Tang",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 ; Conference date: 23-09-2018 Through 27-09-2018",

year = "2018",

month = dec,

day = "3",

doi = "10.1109/ECCE.2018.8558446",

language = "英语",

series = "2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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booktitle = "2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018",

}

Liu, J, Qi, Y & Tang, Y 2018, Mitigating the Harmonics of Parallel-Inverter Systems Considering Nonlinear Loads and Deadtime. 在 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018., 8558446, 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018, Institute of Electrical and Electronics Engineers Inc., 页码 5559-5564, 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018, Portland, 美国, 23/09/18. https://doi.org/10.1109/ECCE.2018.8558446

Mitigating the Harmonics of Parallel-Inverter Systems Considering Nonlinear Loads and Deadtime. / Liu, Jiazhe; Qi, Yang; Tang, Yi.
2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 页码 5559-5564 8558446 (2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018).

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

TY - GEN

T1 - Mitigating the Harmonics of Parallel-Inverter Systems Considering Nonlinear Loads and Deadtime

AU - Liu, Jiazhe

AU - Qi, Yang

AU - Tang, Yi

PY - 2018/12/3

Y1 - 2018/12/3

N2 - The well-known droop control can ensure real and reactive power properly shared among parallel inverters. However, the effectiveness of droop control is limited in the fundamental-frequency domain and cannot address the harmonic issues. According to previous studies, the harmonic currents generated by nonlinear loads can distort the point of common coupling (PCC) voltage, and negative/capacitive virtual impedances are normally adopted to solve this issue by compensating line impedances. In this paper, it is shown that apart from nonlinear loads, switching deadtime can also introduce circulating current harmonics. To simultaneously suppress the circulating current harmonics and mitigate the PCC voltage harmonics, a novel control strategy is proposed based on virtual harmonic impedance controls. The feasibility of the proposed control strategy is verified through experiments.

AB - The well-known droop control can ensure real and reactive power properly shared among parallel inverters. However, the effectiveness of droop control is limited in the fundamental-frequency domain and cannot address the harmonic issues. According to previous studies, the harmonic currents generated by nonlinear loads can distort the point of common coupling (PCC) voltage, and negative/capacitive virtual impedances are normally adopted to solve this issue by compensating line impedances. In this paper, it is shown that apart from nonlinear loads, switching deadtime can also introduce circulating current harmonics. To simultaneously suppress the circulating current harmonics and mitigate the PCC voltage harmonics, a novel control strategy is proposed based on virtual harmonic impedance controls. The feasibility of the proposed control strategy is verified through experiments.

KW - Deadtime

KW - Harmonic suppression

KW - Nonlinear load

KW - Power converter

KW - Virtual impedance

UR - https://www.scopus.com/pages/publications/85060300861

U2 - 10.1109/ECCE.2018.8558446

DO - 10.1109/ECCE.2018.8558446

M3 - 会议稿件

AN - SCOPUS:85060300861

T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

SP - 5559

EP - 5564

BT - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018

Y2 - 23 September 2018 through 27 September 2018

ER -

Mitigating the Harmonics of Parallel-Inverter Systems Considering Nonlinear Loads and Deadtime

摘要

出版系列

会议

联合国可持续发展目标

访问文件

其它文件与链接

指纹

引用此