SOGI-PLL

Demo

Pure Sine Wave

Distorted Sine Wave

You can find the code used to generate these images in the examples folder.

lib.rs:

SOGI-PLL implementation

Based on: https://ieeexplore.ieee.org/document/1711988

Usage:

let mut pll = SogiPll::new(config);

// Call .update every sample_time s
let result = pll.update(measured_voltage);

Recommended parameters:

sogi_k: 1.0
pi_proportional_gain: 178.0,
pi_integral_gain: 0.0001
sample_rate > 1000Hz

K, Kp, Ki for 50Hz taken from here