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Fast repetitive control with harmonic correction loops for shunt active power filter applied in weak grid

Fast repetitive control with harmonic correction loops for shunt active power filter applied in weak grid
Fast repetitive control with harmonic correction loops for shunt active power filter applied in weak grid

This paper proposes a fast repetitive control (FRC) scheme with harmonic correction loops for the three-phase three-wire shunt active power filter (APF) applied in weak power grid. The FRC scheme consists of a repetitive control loop which is designed in the synchronous rotational frame and a fractional delay (FD) filter for approximating the FD caused by the fixed sampling rate. It can significantly improve the dynamic performance for the harmonic compensation. In weak grid situation, the grid frequency, voltage and then harmonic currents would vary rapidly with disturbances. A cumulative error cancellation loop is introduced into the FRC to improve the harmonic detection accuracy when grid frequency drifts. The harmonic correction loops are proposed to correct the harmonic references with selected orders when they vary rapidly with the grid voltage. With such loops, the compensation precision of the shunt APF can be highly improved. Simulation and experiment results verified the effectiveness of the proposed scheme.

Fast repetitive control (FRC), harmonic correction loop, shunt active power filter (APF), weak grid
0093-9994
3198-3206
Geng, Hua
4de0000a-a809-4b66-81bb-ea0befdad671
Zheng, Zedong
e9d4917b-d4f8-4836-a454-bb1c43346d08
Zou, Tianming
0f6cdc82-0054-4639-893e-4a76c859eba7
Chu, Bing
555a86a5-0198-4242-8525-3492349d4f0f
Chandra, Ambrish
c682ecf1-19d9-4cf7-afd5-ca77618ba771
Geng, Hua
4de0000a-a809-4b66-81bb-ea0befdad671
Zheng, Zedong
e9d4917b-d4f8-4836-a454-bb1c43346d08
Zou, Tianming
0f6cdc82-0054-4639-893e-4a76c859eba7
Chu, Bing
555a86a5-0198-4242-8525-3492349d4f0f
Chandra, Ambrish
c682ecf1-19d9-4cf7-afd5-ca77618ba771

Geng, Hua, Zheng, Zedong, Zou, Tianming, Chu, Bing and Chandra, Ambrish (2019) Fast repetitive control with harmonic correction loops for shunt active power filter applied in weak grid. IEEE Transactions on Industry Applications, 55 (3), 3198-3206, [8626158]. (doi:10.1109/TIA.2019.2895570).

Record type: Article

Abstract

This paper proposes a fast repetitive control (FRC) scheme with harmonic correction loops for the three-phase three-wire shunt active power filter (APF) applied in weak power grid. The FRC scheme consists of a repetitive control loop which is designed in the synchronous rotational frame and a fractional delay (FD) filter for approximating the FD caused by the fixed sampling rate. It can significantly improve the dynamic performance for the harmonic compensation. In weak grid situation, the grid frequency, voltage and then harmonic currents would vary rapidly with disturbances. A cumulative error cancellation loop is introduced into the FRC to improve the harmonic detection accuracy when grid frequency drifts. The harmonic correction loops are proposed to correct the harmonic references with selected orders when they vary rapidly with the grid voltage. With such loops, the compensation precision of the shunt APF can be highly improved. Simulation and experiment results verified the effectiveness of the proposed scheme.

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More information

Accepted/In Press date: 17 January 2019
e-pub ahead of print date: 25 January 2019
Published date: 1 May 2019
Keywords: Fast repetitive control (FRC), harmonic correction loop, shunt active power filter (APF), weak grid

Identifiers

Local EPrints ID: 430719
URI: http://eprints.soton.ac.uk/id/eprint/430719
ISSN: 0093-9994
PURE UUID: 1ffb4f14-e2ea-4739-becc-168cc9e85a73
ORCID for Bing Chu: ORCID iD orcid.org/0000-0002-2711-8717

Catalogue record

Date deposited: 09 May 2019 16:30
Last modified: 28 Apr 2022 02:06

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Contributors

Author: Hua Geng
Author: Zedong Zheng
Author: Tianming Zou
Author: Bing Chu ORCID iD
Author: Ambrish Chandra

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