A Novel Method for Estimation of The Fundamental Parameters of Distorted Single Phase Signals

محورهای موضوعی : مهندسی هوشمند برق

Mohammad Zarei ¹ , Mohammad Karimadini ² , Mohsen Nadjafi ³ , Abolfazl Salami ⁴

1 - Department of Electrical Engineering, Arak University of Technology, Arak, Iran
2 - Department of Electrical Engineering, Arak University of Technology, Arak, Iran
3 - Department of Electrical Engineering, Arak University of Technology, Arak, Iran
4 - Department of Electrical Engineering, Arak University of Technology, Arak, Iran

تاریخ دریافت : 1394/11/11 تاریخ پذیرش : 1394/11/11 تاریخ انتشار : 1394/09/10

کلید واژه: Disturbance, Phase-Locked Loop (PLL), Frequency Estimation, Amplitude Estimation, Second-Order Generalized Integrator (SOGI), DC-offset,

چکیده مقاله :

This paper proposes a new method for parameter estimation of distorted single phase signals, through an improved demodulation-based phase tracking incorporated with a frequency adaptation mechanism. The simulation results demonstrate the superiority of the proposed method compared to the conventional SOGI (Second-Order Generalized Integrator)-based approach, in spite of the dc-offset and harmonic distortions.