Switching Harmonics Suppression of Single-loop Multi-sampling Control of Grid-connected Inverter

Shan He; Dao Zhou; Xiongfei Wang; Frede Blaabjerg

doi:10.1109/IECON43393.2020.9254831

Switching Harmonics Suppression of Single-loop Multi-sampling Control of Grid-connected Inverter

Shan He, Dao Zhou, Xiongfei Wang, Frede Blaabjerg

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

5 Citations (Scopus)

Abstract

Multi-sampling control provides an attractive way to reduce the control delays in LCL grid connected inverters, then the bandwidth and stability margin will be improved. However, high frequency switching harmonics (SHs) are introduced in the control loop, which may cause low frequency aliasing and deteriorate the power quality. In this paper, the multi-sampled currents are reconstructed through the double-sampled average currents, which is simple and easy to implement in a microprocessor. As a result, most of the SHs are removed and the power quality is better than the conventional multi-sampling control. Finally, a single-loop pseudo-derivative-feedback control with inverter current feedback is employed, and the effectiveness of the proposed method is verified through simulation.

Original language	English
Title of host publication	Proceedings of IECON 2020 : The 46th Annual Conference of the IEEE Industrial Electronics Society
Number of pages	6
Publisher	IEEE Press
Publication date	Sept 2020
Pages	3259-3264
Article number	9254831
ISBN (Electronic)	978-1-7281-5414-5
DOIs	https://doi.org/10.1109/IECON43393.2020.9254831
Publication status	Published - Sept 2020
Event	IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society - Online Duration: 18 Oct 2020 → 21 Oct 2020 https://www.iecon2020.org/

Conference

Conference	IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society
Location	Online
Period	18/10/2020 → 21/10/2020
Internet address	https://www.iecon2020.org/

Series	Proceedings of the Annual Conference of the IEEE Industrial Electronics Society
ISSN	1553-572X

Keywords

switching harmonics
low frequency aliasing
multi-sampled currents recunstruction
Power quality

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@inproceedings{d174e745f9054bada396da767e259ccc,

title = "Switching Harmonics Suppression of Single-loop Multi-sampling Control of Grid-connected Inverter",

abstract = "Multi-sampling control provides an attractive way to reduce the control delays in LCL grid connected inverters, then the bandwidth and stability margin will be improved. However, high frequency switching harmonics (SHs) are introduced in the control loop, which may cause low frequency aliasing and deteriorate the power quality. In this paper, the multi-sampled currents are reconstructed through the double-sampled average currents, which is simple and easy to implement in a microprocessor. As a result, most of the SHs are removed and the power quality is better than the conventional multi-sampling control. Finally, a single-loop pseudo-derivative-feedback control with inverter current feedback is employed, and the effectiveness of the proposed method is verified through simulation.",

keywords = "switching harmonics, low frequency aliasing, multi-sampled currents recunstruction, Power quality",

author = "Shan He and Dao Zhou and Xiongfei Wang and Frede Blaabjerg",

year = "2020",

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doi = "10.1109/IECON43393.2020.9254831",

language = "English",

series = "Proceedings of the Annual Conference of the IEEE Industrial Electronics Society",

publisher = "IEEE Press",

pages = "3259--3264",

booktitle = "Proceedings of IECON 2020",

note = "IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society ; Conference date: 18-10-2020 Through 21-10-2020",

url = "https://www.iecon2020.org/",

}

He, S , Zhou, D , Wang, X & Blaabjerg, F 2020, Switching Harmonics Suppression of Single-loop Multi-sampling Control of Grid-connected Inverter. in Proceedings of IECON 2020: The 46th Annual Conference of the IEEE Industrial Electronics Society., 9254831, IEEE Press, Proceedings of the Annual Conference of the IEEE Industrial Electronics Society, pp. 3259-3264, IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society, 18/10/2020. https://doi.org/10.1109/IECON43393.2020.9254831

Switching Harmonics Suppression of Single-loop Multi-sampling Control of Grid-connected Inverter. / He, Shan ; Zhou, Dao ; Wang, Xiongfei et al.
Proceedings of IECON 2020: The 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Press, 2020. p. 3259-3264 9254831 (Proceedings of the Annual Conference of the IEEE Industrial Electronics Society).

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

TY - GEN

T1 - Switching Harmonics Suppression of Single-loop Multi-sampling Control of Grid-connected Inverter

AU - He, Shan

AU - Zhou, Dao

AU - Wang, Xiongfei

AU - Blaabjerg, Frede

PY - 2020/9

Y1 - 2020/9

N2 - Multi-sampling control provides an attractive way to reduce the control delays in LCL grid connected inverters, then the bandwidth and stability margin will be improved. However, high frequency switching harmonics (SHs) are introduced in the control loop, which may cause low frequency aliasing and deteriorate the power quality. In this paper, the multi-sampled currents are reconstructed through the double-sampled average currents, which is simple and easy to implement in a microprocessor. As a result, most of the SHs are removed and the power quality is better than the conventional multi-sampling control. Finally, a single-loop pseudo-derivative-feedback control with inverter current feedback is employed, and the effectiveness of the proposed method is verified through simulation.

AB - Multi-sampling control provides an attractive way to reduce the control delays in LCL grid connected inverters, then the bandwidth and stability margin will be improved. However, high frequency switching harmonics (SHs) are introduced in the control loop, which may cause low frequency aliasing and deteriorate the power quality. In this paper, the multi-sampled currents are reconstructed through the double-sampled average currents, which is simple and easy to implement in a microprocessor. As a result, most of the SHs are removed and the power quality is better than the conventional multi-sampling control. Finally, a single-loop pseudo-derivative-feedback control with inverter current feedback is employed, and the effectiveness of the proposed method is verified through simulation.

KW - switching harmonics

KW - low frequency aliasing

KW - multi-sampled currents recunstruction

KW - Power quality

U2 - 10.1109/IECON43393.2020.9254831

DO - 10.1109/IECON43393.2020.9254831

M3 - Article in proceeding

T3 - Proceedings of the Annual Conference of the IEEE Industrial Electronics Society

SP - 3259

EP - 3264

BT - Proceedings of IECON 2020

PB - IEEE Press

T2 - IECON 2020 - 46th Annual Conference of the IEEE Industrial Electronics Society

Y2 - 18 October 2020 through 21 October 2020

ER -

He S , Zhou D , Wang X , Blaabjerg F. Switching Harmonics Suppression of Single-loop Multi-sampling Control of Grid-connected Inverter. In Proceedings of IECON 2020: The 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Press. 2020. p. 3259-3264. 9254831. (Proceedings of the Annual Conference of the IEEE Industrial Electronics Society). doi: 10.1109/IECON43393.2020.9254831

Switching Harmonics Suppression of Single-loop Multi-sampling Control of Grid-connected Inverter

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