Study on phase delay compensation of single-phase grid-connected inverter based on SOGI-PLL

Qingjie Lin; Zhiguo Tang; Dong Li

doi:10.1117/12.3034464

16 October 2024 Study on phase delay compensation of single-phase grid-connected inverter based on SOGI-PLL

Qingjie Lin, Zhiguo Tang, Dong Li

Author Affiliations +

Proceedings Volume 13291, Ninth International Symposium on Advances in Electrical, Electronics, and Computer Engineering (ISAEECE 2024); 132910M (2024) https://doi.org/10.1117/12.3034464
Event: Ninth International Symposium on Advances in Electrical, Electronics, and Computer Engineering (ISAEECE 2024), 2024, Changchun, China

Abstract

Using SOGI-PLL algorithm to control the inverter for pre-synchronous tracking of grid voltage can effectively ensure its safety and reduce the impact on the grid. Considering the phase delay caused by digital control and hardware circuitry, this paper carries out preliminary tracking of the grid voltage based on the SOGI-PLL phase-locking principle, and then extracts the grid phase and the inverter output voltage phase by using the switching phase identification algorithm, and then compensates the phase difference between the two by combining the PI link and the trigonometric formula. After verifying the effectiveness of the compensation method through simulation, a test platform with F28335 chip as the core is built, and the results show that the algorithm can compensate the phase delay of the output voltage of the grid-connected inverter, and the average value of the phase difference is 2.2° before compensation, and the phase difference is less than 0.005° after compensation, which effectively improves the phase tracking accuracy.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Qingjie Lin, Zhiguo Tang, and Dong Li "Study on phase delay compensation of single-phase grid-connected inverter based on SOGI-PLL", Proc. SPIE 13291, Ninth International Symposium on Advances in Electrical, Electronics, and Computer Engineering (ISAEECE 2024), 132910M (16 October 2024); https://doi.org/10.1117/12.3034464

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE