Title :
A single-phase SPLL that combined the advantages of the PLL and the FFT algorithm
Author :
WenFan Li ; Jian Wang ; Ruixiang Hao
Author_Institution :
Coll. of Electr. Eng., Beijing Jiaotong Univ., Beijing, China
Abstract :
This work proposes a single phase software phase-locked loop (SPLL) which has a good performance under distorted grid voltage condition. It can estimate the phase angle correctly despite that the grid voltage contains DC component and it solves the problem that the FFT algorithm can´t generate the grid voltage phase angle correctly when the grid voltage frequency changes in a step manner.
Keywords :
fast Fourier transforms; phase locked loops; power grids; FFT algorithm; SPLL; distorted grid voltage condition; phase angle; single phase software phase-locked loop; Harmonic analysis; Phase locked loops; Power harmonic filters; Signal processing algorithms; Simulation; Steady-state; Transient analysis;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013606
