Tian Yi-Zhi
School of Electrical Engineering, Xinjiang University, 830047, Urumqi, China
Chao Qin
School of Electrical Engineering, Xinjiang University, 830047, Urumqi, China
ABSTRACT
It is important to track and measure the amplitude and frequency of fundamental wave in AC grid accurately and rapidly. Especially on the conditions of variety interference signal. The traditionally method of filtration by software algorithm not only complex but also with low operation speed nor calculation accuracy. In this study, a nonlinear voltage-frequency detection mathematical model based on d-q coordinate transformation is presented, the Central Difference Kalman Filter (CDKF) algorithm is applied to the detection system. The simulation results show that the CDKF algorithm features high measuring precision and the calculating speed can significantly improved without external interference.
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How to cite this article
Tian Yi-Zhi and Chao Qin, 2013. A Voltage-Frequency Central Difference Kalman Filter Detection Algorithm Based
on d-q Coordinate Transformation. Information Technology Journal, 12: 7839-7843.
DOI: 10.3923/itj.2013.7839.7843
URL: https://scialert.net/abstract/?doi=itj.2013.7839.7843
DOI: 10.3923/itj.2013.7839.7843
URL: https://scialert.net/abstract/?doi=itj.2013.7839.7843
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