Improved PV System Control Strategies to Reduce Power Management Costs in Nanogrids

Journal Article · Mon Sep 08 00:00:00 EDT 2025 · IEEE Transactions on Sustainable Energy

DOI:https://doi.org/10.1109/TSTE.2025.3606239· OSTI ID:2588268

Yim, Jaeyun ^[1]; Kim, Junyeob ^[2]; Gil, Jeonghwan ^[3]; You, Sesun ^[4]; Blaabjerg, Frede ^[5]; Lee, Youngwoo ^[6]; Gui, Yonghao ^[7]; Kim, Wonhee ^[2]

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1. Hanwha Aerospace, Changwon (South Korea)
2. Chung-Ang University, Seoul (South Korea)
3. Korea Automotive Technology Institute, Cheonan (South Korea)
4. Keimyung University, Daegu (South Korea)
5. Aalborg University (Denmark)
6. Hanyang University, Ansan (South Korea)
7. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

An improved PV system control method is proposed to reduce nanogrid operation costs in this paper. A model including it various components such as photovoltaic (PV) systems, energy storage systems (ESSs), gateways, and household loads is considered with the constraints of the ESS, PV irradiance from real data, and household load. We designed an optimal economic dispatch strategy with an improved PV system control method. Combining the proposed optimal economic dispatch and PV system control strategies, it can improve the control performance for both transient and steady-state responses thereby enabling the maximum power to be extracted from the PV. Consequently, the PV power is maximized, which allows the ESS to use less power and sell the surplus to external power sources, which means the proposed method decreases the nanogrid operation costs. Furthermore, this performance is verified via nanogrid simulations and PV experimental kit.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: Ministry of Trade, Industry and Energy; USDOE
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 2588268
• Journal Information: IEEE Transactions on Sustainable Energy, Journal Name: IEEE Transactions on Sustainable Energy; ISSN 1949-3029; ISSN 1949-3037
• Publisher: Institute of Electrical and Electronics Engineers (IEEE)
• Country of Publication: United States
• Language: English

Related Subjects

Nanogrid
PV system control
power management system