Single-loop all-pass-filter-based active damping for VSCs with LCL filters connected to the grid

Javier Roldán-Pérez, Emilio Bueno, R. Peña-Alzola, Alberto Rodríguez-Cabero

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

1 Citation (Scopus)

Abstract

LCL filters are commonly used to connect Voltage Sourced Converters (VSCs) to the grid. This type of filters are cheaper than a single inductor, but they can generate resonance problems if no active or passive damping method is used. Active damping methods are becoming popular in the literature because they improve efficiency, but they are sometimes difficult to implement and additional measurements are required. This paper proposes a method to provide active damping for VSCs connected to the grid that is based on making zero the openloop phase at the resonance frequency. It will shown that this strategy provides adequate damping of oscillations and that it can be achieved in two different ways: at the design stage (if the design constraints make it possible) or with an all-pass filter in series with the current controller. All the proposed control algorithms are verified by simulation and in a 15 kW prototype of a three-phase VSC connected to the grid with an LCL filter.

LanguageEnglish
Title of host publication2017 IEEE Energy Conversion Congress and Exposition
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages2948-2953
Number of pages6
ISBN (Electronic)9781509029983
DOIs
Publication statusPublished - 3 Nov 2017
EventIEEE Energy Conversion Congress & Exposition - Cincinnati, United States
Duration: 1 Oct 20175 Oct 2017
http://www.ieee-ecce.org/2017/

Conference

ConferenceIEEE Energy Conversion Congress & Exposition
Abbreviated titleECCE 2017
CountryUnited States
CityCincinnati
Period1/10/175/10/17
Internet address

Fingerprint

All-pass filters
Converter
Damping
Voltage
Filter
Grid
Electric potential
Resonance Problem
Resonance Frequency
Control Algorithm
Prototype
Oscillation
Controller
Controllers
Series
Zero
Simulation
Design

Keywords

  • damping
  • resonant frequency
  • control systems
  • power conversion
  • delays
  • resistors

Cite this

Roldán-Pérez, J., Bueno, E., Peña-Alzola, R., & Rodríguez-Cabero, A. (2017). Single-loop all-pass-filter-based active damping for VSCs with LCL filters connected to the grid. In 2017 IEEE Energy Conversion Congress and Exposition (pp. 2948-2953). [8096543] Piscataway, NJ: IEEE. https://doi.org/10.1109/ECCE.2017.8096543
Roldán-Pérez, Javier ; Bueno, Emilio ; Peña-Alzola, R. ; Rodríguez-Cabero, Alberto. / Single-loop all-pass-filter-based active damping for VSCs with LCL filters connected to the grid. 2017 IEEE Energy Conversion Congress and Exposition. Piscataway, NJ : IEEE, 2017. pp. 2948-2953
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abstract = "LCL filters are commonly used to connect Voltage Sourced Converters (VSCs) to the grid. This type of filters are cheaper than a single inductor, but they can generate resonance problems if no active or passive damping method is used. Active damping methods are becoming popular in the literature because they improve efficiency, but they are sometimes difficult to implement and additional measurements are required. This paper proposes a method to provide active damping for VSCs connected to the grid that is based on making zero the openloop phase at the resonance frequency. It will shown that this strategy provides adequate damping of oscillations and that it can be achieved in two different ways: at the design stage (if the design constraints make it possible) or with an all-pass filter in series with the current controller. All the proposed control algorithms are verified by simulation and in a 15 kW prototype of a three-phase VSC connected to the grid with an LCL filter.",
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Roldán-Pérez, J, Bueno, E, Peña-Alzola, R & Rodríguez-Cabero, A 2017, Single-loop all-pass-filter-based active damping for VSCs with LCL filters connected to the grid. in 2017 IEEE Energy Conversion Congress and Exposition., 8096543, IEEE, Piscataway, NJ, pp. 2948-2953, IEEE Energy Conversion Congress & Exposition, Cincinnati, United States, 1/10/17. https://doi.org/10.1109/ECCE.2017.8096543

Single-loop all-pass-filter-based active damping for VSCs with LCL filters connected to the grid. / Roldán-Pérez, Javier; Bueno, Emilio; Peña-Alzola, R.; Rodríguez-Cabero, Alberto.

2017 IEEE Energy Conversion Congress and Exposition. Piscataway, NJ : IEEE, 2017. p. 2948-2953 8096543.

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

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Roldán-Pérez J, Bueno E, Peña-Alzola R, Rodríguez-Cabero A. Single-loop all-pass-filter-based active damping for VSCs with LCL filters connected to the grid. In 2017 IEEE Energy Conversion Congress and Exposition. Piscataway, NJ: IEEE. 2017. p. 2948-2953. 8096543 https://doi.org/10.1109/ECCE.2017.8096543