Setting exciter to obtain output synchronous generator to be used in wind energy conversion system

Abstract

Indonesia has well natural resource potential, one of which is the wind energy potential which can be utilized for electricity needs. However, the utilization of wind energy in Indonesia is still lacking. Therefore, it is necessary to have a system for utilizing wind energy with the aim of obtaining large electrical energy, one of which is the Wind Power Plant (PLTB) system. Synchronous generators have two important parts, namely the main generator (Alternator) and the exciter (Main Exciter). This exciter has a role as a trigger for the initial electricity generation to supply electricity to the main generator coil. The amount of electricity delivered to the main generator depends on the value of the magnetic flux in the generator exciter. The value of this magnetic flux depends on the amount of DC electric current flowing from the DC-DC Converter or Buck Converter. Therefore, a controller is needed to adjust the amount of electricity that enters the exciter. From the research that has been done, the optimal power at the rotational speed of the generator when the frequency is 50 Hz is 200.36 Watts with a generator voltage of 142.1 Volts and a duty cycle at 81.38%.