Switching study for 275 kV Padang Sidempuan - Payakumbuh transmission line

Hakam, Dzikri Firmansyah; Wahyuni, Rizki; Pramono, Eko Yudo

doi:10.1109/iceei.2011.6021652

Cited by 1 publication

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“…The power system frequency is operated by PLN at 50 Hz for all Indonesia regions. The 150 kV Sumatra power system is divided into two significant subsystems, the North Sumatra subsystem and the Mid-South Sumatra subsystem [25,26]. The North Sumatra subsystem is composed of two smaller subsystems, i.e., Aceh and Sumut subsystems.…”

Section: Indonesia's Transmission Power Systemmentioning

confidence: 99%

Competition in Power Generation: Ex-ante Analysis of Indonesia’s Electricity Market

2020

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This research optimises the mix and structure of Generation Companies (GenCos) in the Sumatra power system, Indonesia. Market power, indicating the ability to raise prices profitably above the competitive level, tends to be a significant problem in the aftermath of electricity market restructuring. In the process of regulatory reform and the development of competitive electricity markets, it is desirable and practical to establish an efficient number of competitor GenCos. Simulations of a power system account for multi-plant mergers of GenCos subject to a regulatory measure of the Residual Supply Index and the influence of direct current load flow and the topology of the system. This study simulates the Sumatra power system in order to determine the following: optimal market structure, efficient GenCo generation mix, and the optimal number of competitive GenCos. Further, this study seeks to empirically optimise the electricity generation mix and electricity market structure of the Sumatra power system using DC load flow optimisation, market power index, and multi-plant monopoly analysis. The simulations include generation and transmission constraints to represent network constraints. This research is the first to analyse the Sumatra power system using imperfect (Cournot) competition modelling. Furthermore, this study is the first kind to optimise the mix and structure of the Sumatra generation power market. The guidelines and methodology in this research can be implemented in other countries characterised by a monopoly electricity utility company.

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Section: Indonesia's Transmission Power Systemmentioning

confidence: 99%