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Impact of the photovoltaic system variability on transformer tap changer operations in distribution networks
Open accessAbstract
This study aims to quantify the transformer tap changer operations on distribution networks with large penetration of photovoltaic systems. The influence of solar generation variability on transformer tap changer is investigated by using five different solar variability day types collected in Malaysia with 1 min resolution. The case studies have been performed on a Malaysian representative distribution network. Results show that high solar variability day could increase the transformer's tap changes by 600% as compared to the clear sky day. The transformer's time delay setting plays a vital role in limiting the tap operations.
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Additional tap changes in OLTCs when operated in a PV-rich distribution network decrease the lifetime and increase the maintenance cost of the device.
“Furthermore, the additional tap changes in OLTCs when operated in a PV-rich distribution network also decrease the lifetime and increase the maintenance cost of the device, as discussed in reference [33].”
From Voltage Regulation in Rooftop PV-Rich Distribution Networks: A Review and Detailed Case Study (2026) · cites this paper as [33]
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Voltage Regulation in Rooftop PV-Rich Distribution Networks: A Review and Detailed Case Study
Rahman, O., Elphick, S., & Robinson, D. A. (2026) · Electronics · doi:10.3390/electronics15051074 · Cited by 3
Metadata
- Authors
- Gan, C. K., Lau, C. Y., Baharin, K. A., & Pudjianto, D.
- Affiliations
- Universiti Teknikal Malaysia Melaka (MY)
- Imperial College London (GB)
- Venue
- CIRED - Open Access Proceedings Journal
- Published
- 2017-10-01
- Volume
- 2017
- Issue
- 1
- Pages
- 1818-1821
- ISSN
- 2515-0855 (ISSN-L)
- OpenAlex
- W2769292255
- Cited by
- 12
- References
- 0
- Citations by year
- 2026: 2 · 2023: 1 · 2022: 1 · 2021: 2 · 2020: 4 · 2019: 1 · 2018: 1
- FWCI
- 0.68
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- cc-by
- Locations
- CIRED - Open Access Proceedings Journal (publishedVersion, cc-by)
- Spiral (Imperial College London) (submittedVersion, other-oa)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Optimal Power Flow Distribution
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Power Quality and Harmonics
- Physical Sciences › Energy › Energy Engineering and Power Technology › Power Systems and Renewable Energy
- Keywords
- tap changers, distribution networks, renewable energy integration, voltage regulation
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