Title |
Amplification of Current Harmonics Due to Self-Excitation Capacitors for Wind Induction Generators |
Authors |
오용(Oh, Yong) ; 최용성(Choi, Yong-Sung) ; 황종선(Hwang, Jong-Sun) ; 이경섭(Lee, Kyung-Sup) |
Keywords |
Self Excitation ; Wind Induction Generator ; Excitation Capacitor ; Total Harmonic Distortion (THD) |
Abstract |
The value of this paper is to use reduced size apparatuses to perform field measurement in order to identify and validate that the harmonic-current effects are due to the presence of self-excitation capacitance connected at stator's terminals of the studied SEIG. This paper has presented the measured electrical quantities of a three-phase \Delta-connected wind induction generator (WIG) under sudden connection and disconnection of resistive loads. An intelligent power-system recorder/monitor has been employed to measure three-phase voltages and currents of the studied system at the terminals of the studied WIG and the load. The measured electrical quantities have been analyzed. Total harmonic distortion (THD) of current using cumulative probability density function has been employed to determine the penetration of harmonic distortion at load side. The results show that the harmonic currents generated by the studied WIG can be severely amplified by the connected self-excited capacitance at the stator's terminals. |