Transmission Loss Mitigation and Angular Margins Enhancement via OTS and PV in the IEEE 62-Bus Benchmark

Paul Masache; Carlos Albuja; Washington Freire; Evelin Masache

doi:10.1007/978-3-032-22641-9_6

Transmission Loss Mitigation and Angular Margins Enhancement via OTS and PV in the IEEE 62-Bus Benchmark

Paul Masache
, Carlos Albuja
, Washington Freire
, Evelin Masache

Universidad Politécnica Salesiana

Research output: Conference contribution › peer-review

Abstract

This paper presents an innovative optimization of the IEEE 62-Bus electrical system by integrating Optimal Transmission Switching (OTS) and large-scale photovoltaic (PV) generation. The proposed methodology employs AC Optimal Power Flow, the Hungarian assignment method, and advanced computational tools (GAMS, HOMER Pro) to analyze three operational scenarios: (1) base case, (2) OTS without PV, and (3) OTS with ten PV plants totaling 357 MW. The integration of PV and OTS yields significant improvements: transmission losses are reduced by 29% (from 45.2 MW to 32.1 MW), angular stability is enhanced (maximum bus angle difference drops from 12.4^∘ to 7.6^∘), and the output of conventional generators is decreased, leading to lower operational costs and emissions. The study demonstrates that PV integration, combined with OTS, mitigates desynchronization risks and contributes to a more resilient, sustainable power system. This work provides a scalable and replicable framework for future grid planning, especially relevant for countries aiming for high renewable energy penetration and decarbonization.

Original language	English
Title of host publication	International Conference on Applied Technologies - 7th International Conference on Applied Technologies, ICAT 2025, Revised Selected Papers
Editors	Miguel Botto-Tobar, Lohana Lema Moreta, Marcelo Zambrano Vizuete, Sergio Montes León, Pablo Torres-Carrion, Benjamin Durakovic
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	89-102
Number of pages	14
ISBN (Print)	9783032226402
DOIs	https://doi.org/10.1007/978-3-032-22641-9_6
Publication status	Published - 2026
Event	7th International Conference on Applied Technologies, ICAT 2025 - Samborondon, Ecuador Duration: 26 Nov 2025 → 28 Nov 2025

Publication series

Name	Communications in Computer and Information Science
Volume	2949 CCIS
ISSN (Print)	1865-0929
ISSN (Electronic)	1865-0937

Conference

Conference	7th International Conference on Applied Technologies, ICAT 2025
Country/Territory	Ecuador
City	Samborondon
Period	26/11/25 → 28/11/25

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.

UN SDGs

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

Affordable and clean energy

Access to Document

10.1007/978-3-032-22641-9_6

Cite this

Masache, P., Albuja, C., Freire, W., & Masache, E. (2026). Transmission Loss Mitigation and Angular Margins Enhancement via OTS and PV in the IEEE 62-Bus Benchmark. In M. Botto-Tobar, L. Lema Moreta, M. Zambrano Vizuete, S. Montes León, P. Torres-Carrion, & B. Durakovic (Eds.), International Conference on Applied Technologies - 7th International Conference on Applied Technologies, ICAT 2025, Revised Selected Papers (pp. 89-102). (Communications in Computer and Information Science; Vol. 2949 CCIS). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-032-22641-9_6

Masache, Paul ; Albuja, Carlos ; Freire, Washington et al. / Transmission Loss Mitigation and Angular Margins Enhancement via OTS and PV in the IEEE 62-Bus Benchmark. International Conference on Applied Technologies - 7th International Conference on Applied Technologies, ICAT 2025, Revised Selected Papers. editor / Miguel Botto-Tobar ; Lohana Lema Moreta ; Marcelo Zambrano Vizuete ; Sergio Montes León ; Pablo Torres-Carrion ; Benjamin Durakovic. Springer Science and Business Media Deutschland GmbH, 2026. pp. 89-102 (Communications in Computer and Information Science).

@inproceedings{f0ec40b70b2e4c49b7904bf5ed885a10,

title = "Transmission Loss Mitigation and Angular Margins Enhancement via OTS and PV in the IEEE 62-Bus Benchmark",

abstract = "This paper presents an innovative optimization of the IEEE 62-Bus electrical system by integrating Optimal Transmission Switching (OTS) and large-scale photovoltaic (PV) generation. The proposed methodology employs AC Optimal Power Flow, the Hungarian assignment method, and advanced computational tools (GAMS, HOMER Pro) to analyze three operational scenarios: (1) base case, (2) OTS without PV, and (3) OTS with ten PV plants totaling 357 MW. The integration of PV and OTS yields significant improvements: transmission losses are reduced by 29\% (from 45.2 MW to 32.1 MW), angular stability is enhanced (maximum bus angle difference drops from 12.4∘ to 7.6∘), and the output of conventional generators is decreased, leading to lower operational costs and emissions. The study demonstrates that PV integration, combined with OTS, mitigates desynchronization risks and contributes to a more resilient, sustainable power system. This work provides a scalable and replicable framework for future grid planning, especially relevant for countries aiming for high renewable energy penetration and decarbonization.",

keywords = "Angular Margins, Optimal Transmission Switching, Photovoltaic Integration, Power System Optimization, Renewable Energy",

author = "Paul Masache and Carlos Albuja and Washington Freire and Evelin Masache",

note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.; 7th International Conference on Applied Technologies, ICAT 2025 ; Conference date: 26-11-2025 Through 28-11-2025",

year = "2026",

doi = "10.1007/978-3-032-22641-9\_6",

language = "English",

isbn = "9783032226402",

series = "Communications in Computer and Information Science",

publisher = "Springer Science and Business Media Deutschland GmbH",

pages = "89--102",

editor = "Miguel Botto-Tobar and \{Lema Moreta\}, Lohana and \{Zambrano Vizuete\}, Marcelo and \{Montes Le{\'o}n\}, Sergio and Pablo Torres-Carrion and Benjamin Durakovic",

booktitle = "International Conference on Applied Technologies - 7th International Conference on Applied Technologies, ICAT 2025, Revised Selected Papers",

address = "Germany",

}

Masache, P, Albuja, C, Freire, W & Masache, E 2026, Transmission Loss Mitigation and Angular Margins Enhancement via OTS and PV in the IEEE 62-Bus Benchmark. in M Botto-Tobar, L Lema Moreta, M Zambrano Vizuete, S Montes León, P Torres-Carrion & B Durakovic (eds), International Conference on Applied Technologies - 7th International Conference on Applied Technologies, ICAT 2025, Revised Selected Papers. Communications in Computer and Information Science, vol. 2949 CCIS, Springer Science and Business Media Deutschland GmbH, pp. 89-102, 7th International Conference on Applied Technologies, ICAT 2025, Samborondon, Ecuador, 26/11/25. https://doi.org/10.1007/978-3-032-22641-9_6

Transmission Loss Mitigation and Angular Margins Enhancement via OTS and PV in the IEEE 62-Bus Benchmark. / Masache, Paul; Albuja, Carlos; Freire, Washington et al.
International Conference on Applied Technologies - 7th International Conference on Applied Technologies, ICAT 2025, Revised Selected Papers. ed. / Miguel Botto-Tobar; Lohana Lema Moreta; Marcelo Zambrano Vizuete; Sergio Montes León; Pablo Torres-Carrion; Benjamin Durakovic. Springer Science and Business Media Deutschland GmbH, 2026. p. 89-102 (Communications in Computer and Information Science; Vol. 2949 CCIS).

Research output: Conference contribution › peer-review

TY - GEN

T1 - Transmission Loss Mitigation and Angular Margins Enhancement via OTS and PV in the IEEE 62-Bus Benchmark

AU - Masache, Paul

AU - Albuja, Carlos

AU - Freire, Washington

AU - Masache, Evelin

N1 - Publisher Copyright: © The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.

PY - 2026

Y1 - 2026

N2 - This paper presents an innovative optimization of the IEEE 62-Bus electrical system by integrating Optimal Transmission Switching (OTS) and large-scale photovoltaic (PV) generation. The proposed methodology employs AC Optimal Power Flow, the Hungarian assignment method, and advanced computational tools (GAMS, HOMER Pro) to analyze three operational scenarios: (1) base case, (2) OTS without PV, and (3) OTS with ten PV plants totaling 357 MW. The integration of PV and OTS yields significant improvements: transmission losses are reduced by 29% (from 45.2 MW to 32.1 MW), angular stability is enhanced (maximum bus angle difference drops from 12.4∘ to 7.6∘), and the output of conventional generators is decreased, leading to lower operational costs and emissions. The study demonstrates that PV integration, combined with OTS, mitigates desynchronization risks and contributes to a more resilient, sustainable power system. This work provides a scalable and replicable framework for future grid planning, especially relevant for countries aiming for high renewable energy penetration and decarbonization.

AB - This paper presents an innovative optimization of the IEEE 62-Bus electrical system by integrating Optimal Transmission Switching (OTS) and large-scale photovoltaic (PV) generation. The proposed methodology employs AC Optimal Power Flow, the Hungarian assignment method, and advanced computational tools (GAMS, HOMER Pro) to analyze three operational scenarios: (1) base case, (2) OTS without PV, and (3) OTS with ten PV plants totaling 357 MW. The integration of PV and OTS yields significant improvements: transmission losses are reduced by 29% (from 45.2 MW to 32.1 MW), angular stability is enhanced (maximum bus angle difference drops from 12.4∘ to 7.6∘), and the output of conventional generators is decreased, leading to lower operational costs and emissions. The study demonstrates that PV integration, combined with OTS, mitigates desynchronization risks and contributes to a more resilient, sustainable power system. This work provides a scalable and replicable framework for future grid planning, especially relevant for countries aiming for high renewable energy penetration and decarbonization.

KW - Angular Margins

KW - Optimal Transmission Switching

KW - Photovoltaic Integration

KW - Power System Optimization

KW - Renewable Energy

UR - https://www.scopus.com/pages/publications/105041089043

U2 - 10.1007/978-3-032-22641-9_6

DO - 10.1007/978-3-032-22641-9_6

M3 - Conference contribution

AN - SCOPUS:105041089043

SN - 9783032226402

T3 - Communications in Computer and Information Science

SP - 89

EP - 102

BT - International Conference on Applied Technologies - 7th International Conference on Applied Technologies, ICAT 2025, Revised Selected Papers

A2 - Botto-Tobar, Miguel

A2 - Lema Moreta, Lohana

A2 - Zambrano Vizuete, Marcelo

A2 - Montes León, Sergio

A2 - Torres-Carrion, Pablo

A2 - Durakovic, Benjamin

PB - Springer Science and Business Media Deutschland GmbH

T2 - 7th International Conference on Applied Technologies, ICAT 2025

Y2 - 26 November 2025 through 28 November 2025

ER -

Masache P, Albuja C, Freire W, Masache E. Transmission Loss Mitigation and Angular Margins Enhancement via OTS and PV in the IEEE 62-Bus Benchmark. In Botto-Tobar M, Lema Moreta L, Zambrano Vizuete M, Montes León S, Torres-Carrion P, Durakovic B, editors, International Conference on Applied Technologies - 7th International Conference on Applied Technologies, ICAT 2025, Revised Selected Papers. Springer Science and Business Media Deutschland GmbH. 2026. p. 89-102. (Communications in Computer and Information Science). doi: 10.1007/978-3-032-22641-9_6