| Title |
Analysis and Measurement of Current Harmonics Due to Non-linear Load in Low Voltage System |
| Authors |
김종겸(Kim, Jong-Gyeom) ; 이은웅(Lee, Eun-Ung) |
| Keywords |
ASD ; PWM ; THD ; Power Quality |
| Abstract |
The ever increasing density of adjustable speed drives(ASD) device with non-linear operating characteristics has been to put tremendous harmonic stress on end user's electrical application. All ASD controllers which employ solid state power devices cause harmonic currents in the source side line. This paper describes harmonic problems for use of ASD. In order to investigate the effect of harmonics caused by using of nonlinear load at the low voltage system, we fixed up simple load model and measured the voltage and current waveforms. Measurement results show that additional operation of linear load at the parallel bus with nonlinear load such as ASD is helpful to the reduction of harmonic influence. |