Adaptive damping scheme of LCL filter resonance under inductance variation for a single-phase grid-connected inverter

Young Chan Cho, Ki Young Choi, Rae Young Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

LCL-filter is broadly utilized to attenuate the switching harmonic ripple generated from the PWM (Pulse Width Modulation) based converters and inverters. However, due to the resonance problem the stability issue should be overcome. Among many solutions, notch filter based active damping is effective solution for not needing additional sensor and damping resistor. But that strategy is vulnerable to filter parameter variation, which varies the resonant frequency. This paper proposes adaptive notch filter concept for a single-phase inverter in considering parameter variation of two inductors with respect to current. Due to that estimation performance, it provides with a size and cost-effective solution for selecting filter materials. Also, this adaptive filter can be designed narrower, which realizes less phase attenuation, thereby securing more loop gain of total system. Therefore, current control loop secures higher bandwidth. Simulation verification of the proposed method is given through MATLAB/Simulink and PSIM software.

Original languageEnglish
Title of host publication9th International Conference on Power Electronics - ECCE Asia
Subtitle of host publication"Green World with Power Electronics", ICPE 2015-ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages978-983
Number of pages6
ISBN (Electronic)9788957082546
DOIs
StatePublished - 2015 Jul 27
Event9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia - Seoul, Korea, Republic of
Duration: 2015 Jun 12015 Jun 5

Publication series

Name9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia

Other

Other9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia
CountryKorea, Republic of
CitySeoul
Period15/06/115/06/5

Fingerprint

Inductance
Notch filters
Damping
Adaptive filters
Electric current control
Resistors
Pulse width modulation
MATLAB
Natural frequencies
Bandwidth
Sensors
Costs

Keywords

  • Adaptive notch filter
  • Filter based active damping
  • Inductor variation
  • Single phase LCL-filter based converter

Cite this

Cho, Y. C., Choi, K. Y., & Kim, R. Y. (2015). Adaptive damping scheme of LCL filter resonance under inductance variation for a single-phase grid-connected inverter. In 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia (pp. 978-983). [7167900] (9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICPE.2015.7167900
Cho, Young Chan ; Choi, Ki Young ; Kim, Rae Young. / Adaptive damping scheme of LCL filter resonance under inductance variation for a single-phase grid-connected inverter. 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 978-983 (9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia).
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abstract = "LCL-filter is broadly utilized to attenuate the switching harmonic ripple generated from the PWM (Pulse Width Modulation) based converters and inverters. However, due to the resonance problem the stability issue should be overcome. Among many solutions, notch filter based active damping is effective solution for not needing additional sensor and damping resistor. But that strategy is vulnerable to filter parameter variation, which varies the resonant frequency. This paper proposes adaptive notch filter concept for a single-phase inverter in considering parameter variation of two inductors with respect to current. Due to that estimation performance, it provides with a size and cost-effective solution for selecting filter materials. Also, this adaptive filter can be designed narrower, which realizes less phase attenuation, thereby securing more loop gain of total system. Therefore, current control loop secures higher bandwidth. Simulation verification of the proposed method is given through MATLAB/Simulink and PSIM software.",
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Cho, YC, Choi, KY & Kim, RY 2015, Adaptive damping scheme of LCL filter resonance under inductance variation for a single-phase grid-connected inverter. in 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia., 7167900, 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia, Institute of Electrical and Electronics Engineers Inc., pp. 978-983, 9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia, Seoul, Korea, Republic of, 15/06/1. https://doi.org/10.1109/ICPE.2015.7167900

Adaptive damping scheme of LCL filter resonance under inductance variation for a single-phase grid-connected inverter. / Cho, Young Chan; Choi, Ki Young; Kim, Rae Young.

9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia. Institute of Electrical and Electronics Engineers Inc., 2015. p. 978-983 7167900 (9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Cho, Young Chan

AU - Choi, Ki Young

AU - Kim, Rae Young

PY - 2015/7/27

Y1 - 2015/7/27

N2 - LCL-filter is broadly utilized to attenuate the switching harmonic ripple generated from the PWM (Pulse Width Modulation) based converters and inverters. However, due to the resonance problem the stability issue should be overcome. Among many solutions, notch filter based active damping is effective solution for not needing additional sensor and damping resistor. But that strategy is vulnerable to filter parameter variation, which varies the resonant frequency. This paper proposes adaptive notch filter concept for a single-phase inverter in considering parameter variation of two inductors with respect to current. Due to that estimation performance, it provides with a size and cost-effective solution for selecting filter materials. Also, this adaptive filter can be designed narrower, which realizes less phase attenuation, thereby securing more loop gain of total system. Therefore, current control loop secures higher bandwidth. Simulation verification of the proposed method is given through MATLAB/Simulink and PSIM software.

AB - LCL-filter is broadly utilized to attenuate the switching harmonic ripple generated from the PWM (Pulse Width Modulation) based converters and inverters. However, due to the resonance problem the stability issue should be overcome. Among many solutions, notch filter based active damping is effective solution for not needing additional sensor and damping resistor. But that strategy is vulnerable to filter parameter variation, which varies the resonant frequency. This paper proposes adaptive notch filter concept for a single-phase inverter in considering parameter variation of two inductors with respect to current. Due to that estimation performance, it provides with a size and cost-effective solution for selecting filter materials. Also, this adaptive filter can be designed narrower, which realizes less phase attenuation, thereby securing more loop gain of total system. Therefore, current control loop secures higher bandwidth. Simulation verification of the proposed method is given through MATLAB/Simulink and PSIM software.

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BT - 9th International Conference on Power Electronics - ECCE Asia

PB - Institute of Electrical and Electronics Engineers Inc.

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Cho YC, Choi KY, Kim RY. Adaptive damping scheme of LCL filter resonance under inductance variation for a single-phase grid-connected inverter. In 9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia. Institute of Electrical and Electronics Engineers Inc. 2015. p. 978-983. 7167900. (9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia). https://doi.org/10.1109/ICPE.2015.7167900