Multifunctional control of single-phase transformerless PV inverter connected to a distribution network

Monirul Islam; Mithulananthan Nadarajah; Jahangir Hossain

doi:10.1109/AUPEC.2016.7749348

Multifunctional control of single-phase transformerless PV inverter connected to a distribution network

Monirul Islam, Mithulananthan Nadarajah, Jahangir Hossain

School of Engineering

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

1 Citation (Scopus)

Abstract

Recently transformerless grid-tied photovoltaic (PV) inverters are getting popular in order to address several concerns; for example, poor efficiency, large size, and heavy weight compared to those with traditional inverter topologies. However, according to the several recently updated grid codes, the grid-tied PV inverter are required to provide full range of services such as maximum power injection, grid voltage regulation (VR), and fault ride through (FRT). In this paper, the performance of a transformerless PV system with a new droop based controller connected to the low voltage distribution system under different operating condition is investigated. In order to provide full-range of grid supporting services, three operation modes are proposed. A detail description of the transformerless PV inverter, droop based controller, and the control strategy are provided. The theoretical analysis is verified using nonlinear simulations in MATLAB/Simulink software environment. The results show that the presented system is capable of injecting maximum power when participate in the grid voltage regulation, and also can enhance fault ride through capability.

Original language	English
Title of host publication	Proceedings of the 2016 Australasian Universities Power Engineering Conference, AUPEC 2016
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-6
Number of pages	6
ISBN (Electronic)	9781509014057
DOIs	https://doi.org/10.1109/AUPEC.2016.7749348
Publication status	Published - 18 Nov 2016
Event	2016 Australasian Universities Power Engineering Conference, AUPEC 2016 - Brisbane, Australia Duration: 25 Sep 2016 → 28 Sep 2016

Other

Other	2016 Australasian Universities Power Engineering Conference, AUPEC 2016
Country/Territory	Australia
City	Brisbane
Period	25/09/16 → 28/09/16

Keywords

Droop control
Fault ride through capability
Leakage current
Multifunction-control
Transformerless converter

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10.1109/AUPEC.2016.7749348

Cite this

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title = "Multifunctional control of single-phase transformerless PV inverter connected to a distribution network",

abstract = "Recently transformerless grid-tied photovoltaic (PV) inverters are getting popular in order to address several concerns; for example, poor efficiency, large size, and heavy weight compared to those with traditional inverter topologies. However, according to the several recently updated grid codes, the grid-tied PV inverter are required to provide full range of services such as maximum power injection, grid voltage regulation (VR), and fault ride through (FRT). In this paper, the performance of a transformerless PV system with a new droop based controller connected to the low voltage distribution system under different operating condition is investigated. In order to provide full-range of grid supporting services, three operation modes are proposed. A detail description of the transformerless PV inverter, droop based controller, and the control strategy are provided. The theoretical analysis is verified using nonlinear simulations in MATLAB/Simulink software environment. The results show that the presented system is capable of injecting maximum power when participate in the grid voltage regulation, and also can enhance fault ride through capability.",

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author = "Monirul Islam and Mithulananthan Nadarajah and Jahangir Hossain",

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Islam, M, Nadarajah, M & Hossain, J 2016, Multifunctional control of single-phase transformerless PV inverter connected to a distribution network. in Proceedings of the 2016 Australasian Universities Power Engineering Conference, AUPEC 2016. Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-6, 2016 Australasian Universities Power Engineering Conference, AUPEC 2016, Brisbane, Australia, 25/09/16. https://doi.org/10.1109/AUPEC.2016.7749348

Multifunctional control of single-phase transformerless PV inverter connected to a distribution network. / Islam, Monirul; Nadarajah, Mithulananthan; Hossain, Jahangir.

Proceedings of the 2016 Australasian Universities Power Engineering Conference, AUPEC 2016. Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2016. p. 1-6.

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

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N2 - Recently transformerless grid-tied photovoltaic (PV) inverters are getting popular in order to address several concerns; for example, poor efficiency, large size, and heavy weight compared to those with traditional inverter topologies. However, according to the several recently updated grid codes, the grid-tied PV inverter are required to provide full range of services such as maximum power injection, grid voltage regulation (VR), and fault ride through (FRT). In this paper, the performance of a transformerless PV system with a new droop based controller connected to the low voltage distribution system under different operating condition is investigated. In order to provide full-range of grid supporting services, three operation modes are proposed. A detail description of the transformerless PV inverter, droop based controller, and the control strategy are provided. The theoretical analysis is verified using nonlinear simulations in MATLAB/Simulink software environment. The results show that the presented system is capable of injecting maximum power when participate in the grid voltage regulation, and also can enhance fault ride through capability.

AB - Recently transformerless grid-tied photovoltaic (PV) inverters are getting popular in order to address several concerns; for example, poor efficiency, large size, and heavy weight compared to those with traditional inverter topologies. However, according to the several recently updated grid codes, the grid-tied PV inverter are required to provide full range of services such as maximum power injection, grid voltage regulation (VR), and fault ride through (FRT). In this paper, the performance of a transformerless PV system with a new droop based controller connected to the low voltage distribution system under different operating condition is investigated. In order to provide full-range of grid supporting services, three operation modes are proposed. A detail description of the transformerless PV inverter, droop based controller, and the control strategy are provided. The theoretical analysis is verified using nonlinear simulations in MATLAB/Simulink software environment. The results show that the presented system is capable of injecting maximum power when participate in the grid voltage regulation, and also can enhance fault ride through capability.

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Multifunctional control of single-phase transformerless PV inverter connected to a distribution network

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