Frequency estimation for grid-connected converters under time-varying harmonics and inter-harmonics

E.B. Kapisch; C.A. Duque; G. Tibola; J.L. Duarte

doi:10.1109/CAMAD.2018.8514941

Frequency estimation for grid-connected converters under time-varying harmonics and inter-harmonics

E.B. Kapisch
, C.A. Duque
, G. Tibola
, J.L. Duarte

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

297 Downloads (Pure)

Abstract

In order to allow the power flow control of grid-connected converters, this paper presents an improved scheme for grid fundamental frequency tracking. A comparison under frequency variation and time-varying harmonic and inter-harmonic condition is also discussed in order to show the method robustness. The scheme is based on a frequency-locked loop operating integrated with a decomposition core, which utilizes a recursive implementation of a modified Hanning filter. The frequency value information is used to perform the modulation and demodulation required to make de decomposition into the core. The compared frequency estimation scheme is based on a zero-crossing with an interpolation correction. Simulation results show that the proposed scheme is able to estimate the fundamental component, including relative quadrature companion signal and the frequency value more accurately and stably than the scheme used to perform the comparison.

Original language	English
Title of host publication	2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	6
ISBN (Electronic)	9781538661512
DOIs	https://doi.org/10.1109/CAMAD.2018.8514941
Publication status	Published - 29 Oct 2018
Event	23rd IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018 - Barcelona, Spain Duration: 17 Sept 2018 → 19 Sept 2018

Conference

Conference	23rd IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018
Country/Territory	Spain
City	Barcelona
Period	17/09/18 → 19/09/18

Funding

This project has received funding from the Electronic Components and Systems for European Leadership Joint Undertaking under grant agreement No 737434. This Joint Undertaking receives support from the European Union’s Horizon 2020 research and innovation programme and Germany, Slovakia, Netherlands, Spain, Italy.

Keywords

frequency-locked loop
Fundamental component estimation
time-varying harmonics and inter-Harmonics
zero-crossing

Access to Document

10.1109/CAMAD.2018.8514941

author versionFinal author version , 1.24 MB

Cite this

Kapisch, E. B., Duque, C. A., Tibola, G., & Duarte, J. L. (2018). Frequency estimation for grid-connected converters under time-varying harmonics and inter-harmonics. In 2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018 Article 8514941 Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/CAMAD.2018.8514941

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title = "Frequency estimation for grid-connected converters under time-varying harmonics and inter-harmonics",

abstract = "In order to allow the power flow control of grid-connected converters, this paper presents an improved scheme for grid fundamental frequency tracking. A comparison under frequency variation and time-varying harmonic and inter-harmonic condition is also discussed in order to show the method robustness. The scheme is based on a frequency-locked loop operating integrated with a decomposition core, which utilizes a recursive implementation of a modified Hanning filter. The frequency value information is used to perform the modulation and demodulation required to make de decomposition into the core. The compared frequency estimation scheme is based on a zero-crossing with an interpolation correction. Simulation results show that the proposed scheme is able to estimate the fundamental component, including relative quadrature companion signal and the frequency value more accurately and stably than the scheme used to perform the comparison.",

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Kapisch, EB, Duque, CA, Tibola, G & Duarte, JL 2018, Frequency estimation for grid-connected converters under time-varying harmonics and inter-harmonics. in 2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018., 8514941, Institute of Electrical and Electronics Engineers, Piscataway, 23rd IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018, Barcelona, Spain, 17/09/18. https://doi.org/10.1109/CAMAD.2018.8514941

Frequency estimation for grid-connected converters under time-varying harmonics and inter-harmonics. / Kapisch, E.B.; Duque, C.A.; Tibola, G. et al.
2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018. Piscataway: Institute of Electrical and Electronics Engineers, 2018. 8514941.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Duque, C.A.

AU - Tibola, G.

AU - Duarte, J.L.

PY - 2018/10/29

Y1 - 2018/10/29

N2 - In order to allow the power flow control of grid-connected converters, this paper presents an improved scheme for grid fundamental frequency tracking. A comparison under frequency variation and time-varying harmonic and inter-harmonic condition is also discussed in order to show the method robustness. The scheme is based on a frequency-locked loop operating integrated with a decomposition core, which utilizes a recursive implementation of a modified Hanning filter. The frequency value information is used to perform the modulation and demodulation required to make de decomposition into the core. The compared frequency estimation scheme is based on a zero-crossing with an interpolation correction. Simulation results show that the proposed scheme is able to estimate the fundamental component, including relative quadrature companion signal and the frequency value more accurately and stably than the scheme used to perform the comparison.

AB - In order to allow the power flow control of grid-connected converters, this paper presents an improved scheme for grid fundamental frequency tracking. A comparison under frequency variation and time-varying harmonic and inter-harmonic condition is also discussed in order to show the method robustness. The scheme is based on a frequency-locked loop operating integrated with a decomposition core, which utilizes a recursive implementation of a modified Hanning filter. The frequency value information is used to perform the modulation and demodulation required to make de decomposition into the core. The compared frequency estimation scheme is based on a zero-crossing with an interpolation correction. Simulation results show that the proposed scheme is able to estimate the fundamental component, including relative quadrature companion signal and the frequency value more accurately and stably than the scheme used to perform the comparison.

KW - frequency-locked loop

KW - Fundamental component estimation

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Kapisch EB, Duque CA, Tibola G , Duarte JL. Frequency estimation for grid-connected converters under time-varying harmonics and inter-harmonics. In 2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, CAMAD 2018. Piscataway: Institute of Electrical and Electronics Engineers. 2018. 8514941 doi: 10.1109/CAMAD.2018.8514941

Frequency estimation for grid-connected converters under time-varying harmonics and inter-harmonics

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