MODELLING AND SIMULATION OF HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM

High voltage direct current (HVDC) is one of the technologies in electrical
transmission system. It is established as an alternative to AC transmission system.
The main purpose ofthis project is to model and simulate the HVDC system by using
software. The scope of this project is to cover the concepts about transmission
system, specifically HVDC.In fact, familiarization with softwaresuch as ATPwill be
covered too as it will assist in the modeling and simulation stage. The systematic
approaches such as research, modeling, simulation, validation and troubleshooting in
accomplishing this project are discussed in the chapter of methodology. Assessments
on several softwares were conducted in order to identify the best software in studying
the behavior of HVDC system. Besides that, data taken from real HVDC project,
which is EGAT/TNB HVDC Interconnection Project, will be discussed too.
Comparison between the simulated results and the real data were carried out in order
to validate the findings from the simulation. Based on the evaluation made on the
relevant software, it is found that ATP is the best software to be utilized in this
project. Subsequently, simulations were conducted by using ATP and desired
waveforms were obtained since they managed to resemble the real data and consistent
with the theoretical concept.