The Solid-State Grounding: The Concept, Design, Structure, and Performance
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1109/jestpe.2026.3664509
- Dergi Adı: IEEE Journal of Emerging and Selected Topics in Power Electronics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Compendex, INSPEC, Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Anahtar Kelimeler: 3φ ac-dc power converters, active power filters, ground currents, ground potentials, grounding system designs, Power system grounding
- Karadeniz Teknik Üniversitesi Adresli: Evet
Özet
The grounding system of any power system equipment is designed to support the continuity of operation, provide a path for fault currents, improve personnel safety, and reduce/eliminate ground potentials. The growing number of grid-connected power electronic converters (PECs) poses challenges for conventional grounding systems. These challenges are mostly due to ground currents and potentials that are dominated by harmonic components produced by grid-connected PECs. Such ground currents and potentials are caused by the instantaneous unbalances, in voltages and/or currents, created by switching actions of a 3φ grid-connected PEC. This paper investigates new designs of grounding systems that are based on power electronic converters. Different possible designs and structures are examined in order to meet the requirements of a grounding system. A design procedure is developed for the proposed grounding systems that is introduced as the solid-state grounding. The performance of the solid-state grounding is evaluated in simulation and laboratory experimentation for different equipment. Performance results show encouraging abilities of the solid-state grounding to limit ground potentials and currents, while minimizing the harmonic distortion. Finally, observed operational features of the solid-state grounding are further demonstrated through comparisons with other grounding systems under similar operating conditions.