Impact of Grid-Connected Photovoltaic Distributed Generation on a 66 kV Sub-Transmission Network in Southern Libya: A Case Study
リビア南部の66kVサブ送電網における系統連系型太陽光発電分散型電源の影響：ケーススタディ (AI 翻訳)
Alaromi, Walid, Ihbal, Abdelbaset
🤖 gxceed AI 要約
日本語
本論文は、リビア南部の弱い66kV送電網に5MWの太陽光発電システムを統合した場合の影響を調査。実損失が30.6%削減され、電圧違反が解消。バッテリー併用を推奨し、投資回収期間6.5年、CO2削減量4,813トン/年と試算。
English
This case study examines integrating a 5 MW PV system into a weak 66 kV grid in southern Libya. Real power losses drop by 30.6%, voltage violations are eliminated, and a battery is recommended for evening peaks. Payback is 6.5 years with annual CO2 reduction of 4,813 tons.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では、離島や遠隔地の系統安定化に同様のPV＋蓄電池の知見が応用可能。ただし、本件はリビアの事例であり、日本の系統運用やSSBJへの直接的な示唆は限定的。
In the global GX context
This paper provides empirical evidence on PV integration in weak grids, relevant to global renewable deployment in developing regions. It demonstrates technical and economic viability, though it lacks direct connection to disclosure frameworks like TCFD or ISSB.
👥 読者別の含意
🔬研究者:Shows a practical methodology for PV-DG integration in weak grids, including load flow and economic analysis with carbon abatement cost.
🏢実務担当者:Provides a case study for engineers designing PV systems in weak networks, highlighting the need for battery storage and transformer upgrades.
🏛政策担当者:Offers evidence for supporting PV in remote areas with high diesel costs, but the specific Libyan context may limit direct policy transfer.
📄 Abstract（原文）
This paper investigates the integration of a 5 MW photovoltaic (PV) distributed generation (DG) system into the 66 kV Tragan sub-transmission network in southern Libya, a weak grid with poor voltage performance and high reactive power demand. The PV system is sized using PV*SOL, while load flow and contingency analyses are carried out using NEPLAN. The results show that PV-DG significantly improves network performance. Real power losses are reduced by 30.6% (from 3.501 MW to 2.429 MW), while the minimum bus voltage increases from 90.4% to 97.8%, eliminating all five voltage violations. Under N-1 contingency conditions, the minimum voltage during transformer outage improves from 87.2% to 94.2%, satisfying operational limits. The analysis also shows that PV alone cannot fully support the evening peak, and a 3 MW/6 MWh battery is recommended. Furthermore, an economic assessment based on actual generation cost gives a payback period of 6.5 years, and a negative carbon abatement cost (–$149/tCO₂). Environmentally, annual CO₂ emissions are reduced by 4,813 tons. Overall, the study confirms that PV-DG is a practical and effective solution for improving weak desert networks such as Tragan, although battery storage, transformer upgrades, and proper protection coordination are needed to achieve full system reliability.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/20484348first seen 2026-06-02 04:14:22
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