Amplitude-phase-locked loop: Estimator of three-phase grid voltage vector

This paper presents a novel amplitude-phase locked loop (APLL) to simultaneously estimate the phase angle, frequency and amplitude of grid voltage, as well as the change rate of amplitude accurately. The proposed APLL can extract pure fundamental component when grid voltage contains noise and harmon...

Full description

Saved in:
Bibliographic Details
Published in2015 IEEE Power & Energy Society General Meeting pp. 1 - 5
Main Authors Lei Shang, Jiabing Hu, Xiaoming Yuan, Wenming Tang, Xinwen Hou
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2015
Subjects
amplitude estimation
Amplitude-phase-locked loop (APLL)
Artificial intelligence
Automatic voltage control
change rate of amplitude (CRA)
Estimation
frequency estimation
Pulse width modulation
Online AccessGet full text

Cover

More Information
Summary:This paper presents a novel amplitude-phase locked loop (APLL) to simultaneously estimate the phase angle, frequency and amplitude of grid voltage, as well as the change rate of amplitude accurately. The proposed APLL can extract pure fundamental component when grid voltage contains noise and harmonic components. Furthermore, positive-sequence voltage component can be decoupled by APLL when grid voltage is asymmetric. Moreover the effect of APLL's controller parameters on its dynamic response is analyzed. Finally, simulation and experimental results are presented to verify the feasibility and effectiveness of APLL.
ISSN:1932-5517
DOI:10.1109/PESGM.2015.7286579