All-Pass-Filter-Based PLL for Single-Phase Grid-Connected Converters Under Distorted Grid Conditions - Xia, Tao; Zhang, Xu; Tan, Guojun; Liu, Yezhao (IEEE access, 2020)
Keywords: All-pass-filter (APF); Band-pass filters; Bandpass filters; Bandwidth; dc offset; Decoupling; Design parameters; Dynamic response; Frequency estimation; harmonic; Harmonic analysis; Performance degradation; Phase locked loops; Phase locked systems; phase-locked loop (PLL); Power converters; Signal processing; Synchronism; Transfer functions; Tuning