Karya
Judul/Title Investigation of Loss-of-Mains Detection on Induction Generators Based on Simple Reactive Power Changes Detection
Penulis/Author Dr. Ir. Mokhammad Isnaeni Bambang Setyonegoro, M.T. (1) ; Prof. Dr. Eng. Ir. F. Danang Wijaya, S.T., M.T., IPM. (2); Ir. Eka Firmansyah, S.T., M.Eng., Ph.D., IPM. (3)
Tanggal/Date 2018
Kata Kunci/Keyword
Abstrak/Abstract Self-excited induction generator (SEIG) is widely used in micro hydropower plants. Generally, in Indonesia, the plant is integrated with a secondary distribution line and acts as a distributed generation (DG). If the distribution line is disconnected from the grid (loss-of-mains, LoM) then the plant must be immediately isolated before the distribution network contact equipment closes back in an out-of-synchronous mode. Voltage relays and frequency relays are commonly used to detect the occurrence of LoM on plants using SEIG. However, those relays are unable to detect all of the LoM events. This paper describes the excitation capacitor sizing strategy so that the direction of the reactive power flow changes in the event of a LoM. The change of direction of reactive power flow is used as an indicator of the occurrence of LoM. Detection of the direction of reactive power flow is done by manipulating the multiplication of instantaneous voltage and current. The result of excitation capacitor determination and LoM detection method was simulated using SIMULINK-Matlab. The simulation results show that the proposed method can detect LoM which cannot be detected either by voltage relays or frequency relays. The disadvantage of this method is not being able to detect the LoM if the load and the power grid are capacitive. However, it is almost certain that the load and the distribution network are always inductive. The results of this study can be used as a direction for the application of LoM protection on SEIG.
Rumpun Ilmu Teknik Elektro
Bahasa Asli/Original Language English
Level Internasional
Status
Dokumen Karya
No Judul Tipe Dokumen Aksi
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