Synergistic Control of Active Filter and Grid Forming Inverter for Power Quality Improvement

Khaliqur Rahman (), Jun Hashimoto, Kunio Koseki, Taha Selim Ustun, Dai Orihara and Hiroshi Kikusato
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Khaliqur Rahman: National Institute of Advanced Industrial Science and Technology (AIST), Renewable Energy Research Center, Koriyama 963-0205, Japan
Jun Hashimoto: National Institute of Advanced Industrial Science and Technology (AIST), Renewable Energy Research Center, Koriyama 963-0205, Japan
Kunio Koseki: National Institute of Advanced Industrial Science and Technology (AIST), Advanced Power Electronics Research Center, Tsukuba 305-8568, Japan
Taha Selim Ustun: National Institute of Advanced Industrial Science and Technology (AIST), Renewable Energy Research Center, Koriyama 963-0205, Japan
Dai Orihara: National Institute of Advanced Industrial Science and Technology (AIST), Renewable Energy Research Center, Koriyama 963-0205, Japan
Hiroshi Kikusato: National Institute of Advanced Industrial Science and Technology (AIST), Renewable Energy Research Center, Koriyama 963-0205, Japan

Sustainability, 2024, vol. 16, issue 20, 1-15

Abstract: This paper addresses the challenges and opportunities associated with integrating grid-forming inverters (GFMs) into modern power systems, particularly in the presence of nonlinear loads. Nonlinear loads introduce significant harmonic distortions in the source voltage and current, leading to reduced power factor, increased losses, and an overall reduction in system performance. To mitigate these adverse effects, active filters are employed. The objective of this study is to investigate a synergistic approach to modeling and control in integrated power systems with GFMs, focusing on enhancing power quality and grid stability by reducing harmonic distortions through the use of voltage-source active filters. This research contributes to sustainability by supporting the reliable and efficient integration of renewable energy sources, thereby reducing dependency on fossil fuels and minimizing greenhouse gas emissions. Additionally, improving power quality and system efficiency helps reduce energy waste, which is crucial for achieving sustainable energy goals. Simulations are conducted on a 1000 kW GFM connected to a grid with a nonlinear variable load, demonstrating the system’s effectiveness in adapting to dynamic conditions, reducing harmonics, and promoting a stable, resilient, and sustainable power grid.

Keywords: grid forming inverter; non-linear load; power quality improvement; shunt active filter (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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