Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration

Buyisiwe Ndwandwe; Udochukwu B. Akuru; Lawrence Ramphele; Bonginkosi A. Thango; Ntombizotwa P. Memane; Ogbonnaya I. Okoro

doi:10.1109/ICECET52533.2021.9698684

Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration

Buyisiwe Ndwandwe
, Udochukwu B. Akuru
, Lawrence Ramphele
, Bonginkosi A. Thango
, Ntombizotwa P. Memane
, Ogbonnaya I. Okoro

Tshwane University of Technology
SGB-Smit Power Matla
Michael Okpara University of Agriculture

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

3 Citations (Scopus)

Abstract

South Africa is currently facing shortage of electricity, as the national utility is forced to implement routine load shedding stages. To tackle this problem, the country has planned to boost its electricity infrastructure through the systematic development of renewable energy independent power projects to provide additional capacity for the national grid. In this study, the design of a 60 MVA 88/33 kV YNd1 power transformer is implemented for a solar photovoltaic (PV) plant. The power transformer is designed and tested at SGB-SMIT POWER MATLA. The transformer is designed using an in-house transformer design system (TDS) to predict the performance. The transformer is then manufactured, tested and successfully installed on site. The factory acceptance tests (FAT) on thermal and short-circuit, as well as conducted no-load, load and short-circuit impedance tests confirmed the transformer specifications and suitability for the proposed project. The specified impedance is 11 % which is the same as the measured impedance, the former is over by 0.2 % to cater for internal production tolerances that have been experienced over the years.

Original language	English
Title of host publication	International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665442312
DOIs	https://doi.org/10.1109/ICECET52533.2021.9698684
Publication status	Published - 2021
Externally published	Yes
Event	2021 International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021 - Cape Town, South Africa Duration: 9 Dec 2021 → 10 Dec 2021

Publication series

Name	International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021

Conference

Conference	2021 International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021
Country/Territory	South Africa
City	Cape Town
Period	9/12/21 → 10/12/21

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

grid integration
high voltage (HV)
low voltage (LV)
power transformer
renewable energy
solar photovoltaic (PV) plant
winding

ASJC Scopus subject areas

Electrical and Electronic Engineering
General Computer Science
Energy Engineering and Power Technology

Access to Document

10.1109/ICECET52533.2021.9698684

Cite this

Ndwandwe, B., Akuru, U. B., Ramphele, L., Thango, B. A., Memane, N. P., & Okoro, O. I. (2021). Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration. In International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021 (International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICECET52533.2021.9698684

Ndwandwe, Buyisiwe ; Akuru, Udochukwu B. ; Ramphele, Lawrence et al. / Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration. International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021. Institute of Electrical and Electronics Engineers Inc., 2021. (International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021).

@inproceedings{098f536371bd4427ab53238be8890320,

title = "Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration",

abstract = "South Africa is currently facing shortage of electricity, as the national utility is forced to implement routine load shedding stages. To tackle this problem, the country has planned to boost its electricity infrastructure through the systematic development of renewable energy independent power projects to provide additional capacity for the national grid. In this study, the design of a 60 MVA 88/33 kV YNd1 power transformer is implemented for a solar photovoltaic (PV) plant. The power transformer is designed and tested at SGB-SMIT POWER MATLA. The transformer is designed using an in-house transformer design system (TDS) to predict the performance. The transformer is then manufactured, tested and successfully installed on site. The factory acceptance tests (FAT) on thermal and short-circuit, as well as conducted no-load, load and short-circuit impedance tests confirmed the transformer specifications and suitability for the proposed project. The specified impedance is 11 \% which is the same as the measured impedance, the former is over by 0.2 \% to cater for internal production tolerances that have been experienced over the years.",

keywords = "grid integration, high voltage (HV), low voltage (LV), power transformer, renewable energy, solar photovoltaic (PV) plant, winding",

author = "Buyisiwe Ndwandwe and Akuru, \{Udochukwu B.\} and Lawrence Ramphele and Thango, \{Bonginkosi A.\} and Memane, \{Ntombizotwa P.\} and Okoro, \{Ogbonnaya I.\}",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 2021 International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021 ; Conference date: 09-12-2021 Through 10-12-2021",

year = "2021",

doi = "10.1109/ICECET52533.2021.9698684",

language = "English",

series = "International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021",

address = "United States",

}

Ndwandwe, B, Akuru, UB, Ramphele, L, Thango, BA, Memane, NP & Okoro, OI 2021, Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration. in International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021. International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021, Institute of Electrical and Electronics Engineers Inc., 2021 International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021, Cape Town, South Africa, 9/12/21. https://doi.org/10.1109/ICECET52533.2021.9698684

Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration. / Ndwandwe, Buyisiwe; Akuru, Udochukwu B.; Ramphele, Lawrence et al.
International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021. Institute of Electrical and Electronics Engineers Inc., 2021. (International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021).

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

TY - GEN

T1 - Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration

AU - Ndwandwe, Buyisiwe

AU - Akuru, Udochukwu B.

AU - Ramphele, Lawrence

AU - Thango, Bonginkosi A.

AU - Memane, Ntombizotwa P.

AU - Okoro, Ogbonnaya I.

PY - 2021

Y1 - 2021

N2 - South Africa is currently facing shortage of electricity, as the national utility is forced to implement routine load shedding stages. To tackle this problem, the country has planned to boost its electricity infrastructure through the systematic development of renewable energy independent power projects to provide additional capacity for the national grid. In this study, the design of a 60 MVA 88/33 kV YNd1 power transformer is implemented for a solar photovoltaic (PV) plant. The power transformer is designed and tested at SGB-SMIT POWER MATLA. The transformer is designed using an in-house transformer design system (TDS) to predict the performance. The transformer is then manufactured, tested and successfully installed on site. The factory acceptance tests (FAT) on thermal and short-circuit, as well as conducted no-load, load and short-circuit impedance tests confirmed the transformer specifications and suitability for the proposed project. The specified impedance is 11 % which is the same as the measured impedance, the former is over by 0.2 % to cater for internal production tolerances that have been experienced over the years.

AB - South Africa is currently facing shortage of electricity, as the national utility is forced to implement routine load shedding stages. To tackle this problem, the country has planned to boost its electricity infrastructure through the systematic development of renewable energy independent power projects to provide additional capacity for the national grid. In this study, the design of a 60 MVA 88/33 kV YNd1 power transformer is implemented for a solar photovoltaic (PV) plant. The power transformer is designed and tested at SGB-SMIT POWER MATLA. The transformer is designed using an in-house transformer design system (TDS) to predict the performance. The transformer is then manufactured, tested and successfully installed on site. The factory acceptance tests (FAT) on thermal and short-circuit, as well as conducted no-load, load and short-circuit impedance tests confirmed the transformer specifications and suitability for the proposed project. The specified impedance is 11 % which is the same as the measured impedance, the former is over by 0.2 % to cater for internal production tolerances that have been experienced over the years.

KW - grid integration

KW - high voltage (HV)

KW - low voltage (LV)

KW - power transformer

KW - renewable energy

KW - solar photovoltaic (PV) plant

KW - winding

UR - https://www.scopus.com/pages/publications/85127080084

U2 - 10.1109/ICECET52533.2021.9698684

DO - 10.1109/ICECET52533.2021.9698684

M3 - Conference contribution

AN - SCOPUS:85127080084

T3 - International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021

BT - International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2021 International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021

Y2 - 9 December 2021 through 10 December 2021

ER -

Ndwandwe B, Akuru UB, Ramphele L, Thango BA, Memane NP, Okoro OI. Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration. In International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021. Institute of Electrical and Electronics Engineers Inc. 2021. (International Conference on Electrical, Computer, and Energy Technologies, ICECET 2021). doi: 10.1109/ICECET52533.2021.9698684

Power Transformer Design Implementation for Large-Scale Solar Power Plant Grid Integration

Abstract

Publication series

Conference

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this