Studi stabilitas sistem tenaga listrik di PT PLN (Persero) wilayah VII Suluttenggo sektor Minahasa

HARUN, Ervan Hasan, Dr.Ir. Sasongko Pramono Hadi, DEA

2006 | Tesis | S2 Teknik Elektro

Penelitian ini dilakukan untuk mengetahui stabilitas sistem tenaga listrik di PT. PLN (Persero) Wilayah VII SULUTTENGGO Sektor Minahasa dengan meninjau tanggapan dari setiap pembangkit ketika terjadi gangguan. Dan bagaimana perbaikan stabilitas sistem tenaga listrik setelah diterapkan Power System Stabilizer (PSS) pada setiap pembangkit. Gangguan yang disimulasikan dalam penelitian ini berupa lepasnya beban di bus Tasik Ria secara mendadak akibat putusnya saluran transmisi antara gardu induk Tomohon dan gardu induk Tasik Ria. Simulasi dengan program EDSA digunakan untuk menganalisis perubahan dan osilasi sudut rotor, osilasi frekuensi, osilasi tegangan, dan osilasi daya elektrik. Hasil penelitian menunjukkan bahwa penggunaan Power System Stabilizer (PSS) memberikan perbaikan stabilitas sistem tenaga listrik. Overshoot dan waktu osilasi dapat dikurangi setelah menggunakan PSS.

The research was aimed to find out the electric power system stability in PT. PLN Region VII SULUTTENGGO Sector of Minahasa with evaluating the respond of each electric power station on the happening of disturbance. And how the improved of electric power system stability after applied Power System Stabilizer (PSS) in each electric power station. Simulation of suddenly load shedding disturbance on bus of Tasik Ria caused by branch tripping occur in transmission line between Tomohon and Tasik Ria substation conducted in this research. Simulation with program of EDSA used to analyse the change in rotor angle, frequency oscillation, voltage oscillation, and electric power oscillation. The result of research indicates that installation of Power System Stabilizer (PSS) can be improved of electric power system stability. Overshoot and time of oscillation can be reduction after using PSS.

Kata Kunci : Sistem Tenaga Listrik, Stabilitas EDSA, stability, oscillation, overshoots, PSS.