Efek Pengintegrasian Pembangkit Listrik Tersebar pada Jaringan Distribusi Radial terhadap Perosotan Tegangan

Abstract

Abstrak-Pada sistem distribusi radial 20 kV yang dipasok oleh Gardu Induk (GI) dalam jarak yang cukup jauh dari pusat beban akan menyebabkan terjadinya perosotan tegangan yang cukup signifikan. Pengintegrasian pembangkit tersebar (Distributed Generation, DG) pada jaringan distribusi tersebut akan menjadi salah satu solusi untuk memperbaiki perosotan tegangan tersebut. Tulisan ini mengemukakan suatu cara menganalisis efek pengintegrasian beberapa pembangkit listrik tersebar (DG) pada jaringan distribusi radial terhadap perosotan tegangan. Analisis menggunakan metoda arus injeksi dari beban dan DG pada setiap bus. Hasil analisis menunjukkan bahwa penetrasi 5 unit DG pada jaringan distribusi akan mengurangi perosotan tegangan jaringan distribusi secara signifikan, terutama pada bus yang berdekatan dengan DG. Kata Kunci : pembangkit listrik tersebar(DG), jaringan distribusi radial, perosotan tegangan, arus injeksi.Abstract-At 20 kV radial distribution systems supplied by the substation in a considerable distance from the load centre, will cause occurred its voltage drop significantly. The integration of distributed generation on the distribution networks will be one of the solutions to reduce the drop voltage. This paper proposes a way to analyze the effect of integration multiple distributed generation (DG) in radial distribution networks to the voltage drop. This analysis uses the injection current method of the load and the DG on each bus. The analysis results showed that the penetration of 5 units of DG on the distribution network will reduce its voltage drops significantly, especially on the adjacent bus with DG.

Penentuan Kapasitas dan Lokasi Optimal dari Pembangkit Tersebar pada Jaringan Distribusi Penyulang Nila di Gardu Induk Metro

“…Namun, pemasangan DG juga merubah kondisi operasi dan kontrol pada jaringan distribusi. Pemasangan DG dengan kapasitas dan lokasi penempatan yang tidak optimal dapat mengakibatkan rugi-rugi daya aktif yang semakin besar dan semakin mengurangi stabilitas tegangan [1].…”

Maximum Capacities of Distributed Generation in order to Avoid Failures of the Overcurrent Relay Coordination on a Distribution Networks

“…Utilization of Distributed Generation (DG) is considered as one of solution for environment problem due fossil fuel carbon emission and the need for higher capacity of transmission lines [1]. DGs also have capability to provide better performance than conventional generation such as reducing electrical loss, improving voltage magnitude [2] and possibility to increase distribution reliability. However, the presence of a DG in a distribution network often bring a new problem for power system protection that already exist before the installation of the DG [3].…”

Maximum Capacities of Distributed Generation in order to Avoid Failures of the Overcurrent Relay Coordination on a Distribution Networks

“…DGs also have capability to provide better performance than conventional generation such as reducing electrical loss, improving voltage magnitude [2] and possibility to increase distribution reliability. However, the presence of a DG in a distribution network often bring a new problem for power system protection that already exist before the installation of the DG [3].…”