Next Article in Journal
Wind Turbine Gust Load Alleviation with Active Flow Control
Previous Article in Journal
Particle Number Emission from Vehicles of Various Drives in the RDE Tests
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Energies
Volume 15
Issue 17
10.3390/en15176473
energies-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Operation Method of On-Load Tap Changer on Main Transformer Considering Reverse Power Flow in Distribution System Connected with High Penetration on Photovoltaic System

by
Kwang-Hoon Yoon
,
Joong-Woo Shin
,
Tea-Yang Nam
,
Jae-Chul Kim
and
Won-Sik Moon
*
Department of Electrical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Korea
*
Author to whom correspondence should be addressed.
Energies 2022, 15(17), 6473; https://doi.org/10.3390/en15176473
Submission received: 1 August 2022 / Revised: 24 August 2022 / Accepted: 30 August 2022 / Published: 5 September 2022
Browse Figures
Versions Notes

Abstract

The increasing use of photovoltaics (PVs) in distribution systems owing to the low-carbon policy has given rise to the need for various technological changes. In particular, the operation of on-load tap changers (OLTCs) has attracted attention. In traditional distribution systems, the OLTC operates via a line-drop compensator (LDC), which focuses on the load to solve the low-voltage problem; however, the problem of over-voltage caused by PVs persists. Currently, a method for operating an OLTC using the measured voltage is being researched; however, solving the voltage problem for several feeders connected to a main transformer (MT) is not viable. Therefore, this study proposes an OLTC operation method to address the feeder with the largest voltage problem depending on the direction of power flow. The proposed method selects a point where the OLTC operates using the difference between the measured and reference voltages. Setting the reference voltage can solve the problem that occurs due to the direction of power flow. Finally, the effectiveness of the proposed method is verified via case studies. Based on the results, we can conclude that the proposed method effectively solves the voltage problem, and an increase in hosting capacity can be expected.
Keywords: reverse power flow; on-load tap changer; photovoltaic generation; distribution system reverse power flow; on-load tap changer; photovoltaic generation; distribution system

Share and Cite

MDPI and ACS Style

Yoon, K.-H.; Shin, J.-W.; Nam, T.-Y.; Kim, J.-C.; Moon, W.-S. Operation Method of On-Load Tap Changer on Main Transformer Considering Reverse Power Flow in Distribution System Connected with High Penetration on Photovoltaic System. Energies 2022, 15, 6473. https://doi.org/10.3390/en15176473

AMA Style

Yoon K-H, Shin J-W, Nam T-Y, Kim J-C, Moon W-S. Operation Method of On-Load Tap Changer on Main Transformer Considering Reverse Power Flow in Distribution System Connected with High Penetration on Photovoltaic System. Energies. 2022; 15(17):6473. https://doi.org/10.3390/en15176473

Chicago/Turabian Style

Yoon, Kwang-Hoon, Joong-Woo Shin, Tea-Yang Nam, Jae-Chul Kim, and Won-Sik Moon. 2022. "Operation Method of On-Load Tap Changer on Main Transformer Considering Reverse Power Flow in Distribution System Connected with High Penetration on Photovoltaic System" Energies 15, no. 17: 6473. https://doi.org/10.3390/en15176473

APA Style

Yoon, K.-H., Shin, J.-W., Nam, T.-Y., Kim, J.-C., & Moon, W.-S. (2022). Operation Method of On-Load Tap Changer on Main Transformer Considering Reverse Power Flow in Distribution System Connected with High Penetration on Photovoltaic System. Energies, 15(17), 6473. https://doi.org/10.3390/en15176473

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop