Analisa Pemanfaatan Harmonisa Sebagai Sumber Energi Alternatif dengan Filter Pasif

Abstract

A three phase induction motor usually uses an inverter to adjust the speed. In the inverter there is a full wave rectifier circuit that produces harmonics. This rectifier circuit generally uses a six pulse converter. Filter installed to reduce the harmonics. In this paper, LC filter used to reduce the 5th and 7th harmonics. This research aims to analyze utilization of the harmonic as a source of energy by replacing the inductor (L) component of the filter with a transformer. Harmonic currents will induce the transformers and generate voltage on secondary side which can be use as source of power. The simulation of PSIM results the generated output power of the transformer is 138 Watts. The power quality rise from 0.955 to 0.967 and the magnitude of THD drops from 21.2% to 7.1%.

Keywords

• Harmonic
• LC Filters
• Transformer
• PSIM