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All Journal Jambura Journal of Electrical and Electronics Engineering
Ihksan Ihksan
Universitas Ichsan Gorontalo
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Load Flow and Transient Stability Analysis of the Gorontalo 150 kV Electrical System Post-Interconnection of the 10 MWp Isimu Solar Power Plant Frengki Eka Putra Surusa; Ihksan Ihksan; Steven Humena; Sardi Salim
Jambura Journal of Electrical and Electronics Engineering Vol 8, No 2 (2026): Juli - Desember 2026
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjeee.v8i2.36995

Abstract

The Isimu Solar Power Plant (PLTS) has been constructed for the Gorontalo power system. This plant is directly interconnected to the Isimu Substation bus via a 20 kV distribution line. This interconnection alters the system's power flow and impacts its stability. Consequently, an analysis of the main generation system's performance under steady-state conditions—considering system disturbances—was conducted for both pre- and post-interconnection scenarios. The Isimu PLTS interconnection improved the voltage profile at each substation bus by an average of 1.06% and resulted in minimal power losses of 0.43%, thereby enhancing overall system performance. During short-duration disturbances, the Gorontalo power system remained stable; following a disturbance, the generator rotor angle returned to normal operation one second faster than in the pre-interconnection state.
Co-Authors Frengki Eka Putra Surusa Sardi Salim Steven Humena