Development of Reference Current Calculation Scheme for Grid-Side Converter during Unbalanced Faults

Muhammad Abubakar; Hasan Akbari; Herwig Renner

doi:10.1109/SMART55236.2022.9990338

Development of Reference Current Calculation Scheme for Grid-Side Converter during Unbalanced Faults

Muhammad Abubakar^*, Hasan Akbari, Herwig Renner

^*Corresponding author for this work

Institute of Electrical Power Systems (4320)

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

Abstract

The share of renewable energy is increasing day by day. The European Union set its target to double the share of solar and wind power by 2025 and to triple it by 2030. The renewable energy sources are mostly connected to the grid with converters. Due to the large penetration of the converters, the grid operators demand a specific negative sequence current injection from the converters for the safe and reliable operation. The grid codes define the response of the grid connected converters in case of a fault. The conventional control scheme of the converter is unable to operate properly in unbalanced situations. This paper presents a new control scheme for generating the reference converter's current consisting of positive and negative sequences while ensuring the safety of the converter. It is capable of injecting the negative sequence current to fulfil the recent grid codes, in addition, it complies with the converter's current limitation. The conventional and proposed methods are compared for different types of unbalanced faults. The results demonstrate the capability of the proposed scheme to fulfil the recent grid code requirements while ensuring the safe operation of the converter.

Original language	English
Title of host publication	2022 2nd International Conference on Sustainable Mobility Applications, Renewables and Technology, SMART 2022
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	9
ISBN (Electronic)	9781665471466
DOIs	https://doi.org/10.1109/SMART55236.2022.9990338
Publication status	Published - 2022
Event	2nd International Conference on Sustainable Mobility Applications, Renewables and Technology: SMART 2022 - Cassino, Italy Duration: 23 Nov 2022 → 25 Nov 2022

Conference

Conference	2nd International Conference on Sustainable Mobility Applications, Renewables and Technology
Abbreviated title	SMART 2022
Country/Territory	Italy
City	Cassino
Period	23/11/22 → 25/11/22

Keywords

Fault ride-through
Grid Codes
Grid connection
Reference Current Generation
Unbalanced Faults
Voltage Support
Voltage-source Converters

ASJC Scopus subject areas

Computer Networks and Communications
Computer Science Applications

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/SMART55236.2022.9990338

Cite this

Development of Reference Current Calculation Scheme for Grid-Side Converter during Unbalanced Faults. / Abubakar, Muhammad; Akbari, Hasan; Renner, Herwig.
2022 2nd International Conference on Sustainable Mobility Applications, Renewables and Technology, SMART 2022. Institute of Electrical and Electronics Engineers, 2022.

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

Abubakar, M, Akbari, H & Renner, H 2022, Development of Reference Current Calculation Scheme for Grid-Side Converter during Unbalanced Faults. in 2022 2nd International Conference on Sustainable Mobility Applications, Renewables and Technology, SMART 2022. Institute of Electrical and Electronics Engineers, 2nd International Conference on Sustainable Mobility Applications, Renewables and Technology, Cassino, Italy, 23/11/22. https://doi.org/10.1109/SMART55236.2022.9990338

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abstract = "The share of renewable energy is increasing day by day. The European Union set its target to double the share of solar and wind power by 2025 and to triple it by 2030. The renewable energy sources are mostly connected to the grid with converters. Due to the large penetration of the converters, the grid operators demand a specific negative sequence current injection from the converters for the safe and reliable operation. The grid codes define the response of the grid connected converters in case of a fault. The conventional control scheme of the converter is unable to operate properly in unbalanced situations. This paper presents a new control scheme for generating the reference converter's current consisting of positive and negative sequences while ensuring the safety of the converter. It is capable of injecting the negative sequence current to fulfil the recent grid codes, in addition, it complies with the converter's current limitation. The conventional and proposed methods are compared for different types of unbalanced faults. The results demonstrate the capability of the proposed scheme to fulfil the recent grid code requirements while ensuring the safe operation of the converter.",

keywords = "Fault ride-through, Grid Codes, Grid connection, Reference Current Generation, Unbalanced Faults, Voltage Support, Voltage-source Converters",

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N2 - The share of renewable energy is increasing day by day. The European Union set its target to double the share of solar and wind power by 2025 and to triple it by 2030. The renewable energy sources are mostly connected to the grid with converters. Due to the large penetration of the converters, the grid operators demand a specific negative sequence current injection from the converters for the safe and reliable operation. The grid codes define the response of the grid connected converters in case of a fault. The conventional control scheme of the converter is unable to operate properly in unbalanced situations. This paper presents a new control scheme for generating the reference converter's current consisting of positive and negative sequences while ensuring the safety of the converter. It is capable of injecting the negative sequence current to fulfil the recent grid codes, in addition, it complies with the converter's current limitation. The conventional and proposed methods are compared for different types of unbalanced faults. The results demonstrate the capability of the proposed scheme to fulfil the recent grid code requirements while ensuring the safe operation of the converter.

AB - The share of renewable energy is increasing day by day. The European Union set its target to double the share of solar and wind power by 2025 and to triple it by 2030. The renewable energy sources are mostly connected to the grid with converters. Due to the large penetration of the converters, the grid operators demand a specific negative sequence current injection from the converters for the safe and reliable operation. The grid codes define the response of the grid connected converters in case of a fault. The conventional control scheme of the converter is unable to operate properly in unbalanced situations. This paper presents a new control scheme for generating the reference converter's current consisting of positive and negative sequences while ensuring the safety of the converter. It is capable of injecting the negative sequence current to fulfil the recent grid codes, in addition, it complies with the converter's current limitation. The conventional and proposed methods are compared for different types of unbalanced faults. The results demonstrate the capability of the proposed scheme to fulfil the recent grid code requirements while ensuring the safe operation of the converter.

KW - Fault ride-through

KW - Grid Codes

KW - Grid connection

KW - Reference Current Generation

KW - Unbalanced Faults

KW - Voltage Support

KW - Voltage-source Converters

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Y2 - 23 November 2022 through 25 November 2022

ER -

Development of Reference Current Calculation Scheme for Grid-Side Converter during Unbalanced Faults

Abstract

Conference

Keywords

ASJC Scopus subject areas

UN SDGs

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