Research on improving sagging control strategy based on distributed inverter

Mengda Li; Hanghang Zhu; Yueyue Sun; Guangyao Pei; Han Ning

doi:10.1117/12.3052333

11 December 2024 Research on improving sagging control strategy based on distributed inverter

Mengda Li, Hanghang Zhu, Yueyue Sun, Guangyao Pei, Han Ning

Proceedings Volume 13445, International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2024); 134450A (2024) https://doi.org/10.1117/12.3052333
Event: International Conference on Electronics. Electrical and Information Engineering (ICEEIE 2024), 2024, Haikou, China

Abstract

In microgrids, sag control strategies are commonly employed by inverters across various levels. This study introduces an innovative solution to address challenges in sag control, specifically targeting issues related to uneven reactive power distribution and present transmission line impedance causes the AC bus voltage to drop. The proposed approach involves the implementation of an adaptive virtual impedance method and a feedback bus voltage recovery strategy, both grounded in the principle of multibody consistency. Firstly, the paper analyzes the causes of uneven reactive power distribution and busbar voltage deviation caused by traditional inverter sag control with multi-inverters parallel model. Secondly, the improvement strategy of sag control is proposed, and the virtual impedance and bus voltage feedback method of control based on distributed consistency principle is introduced to achieve the purpose of reactive power equalizing and restoring bus voltage. Finally, two inverter models were built in the MATLAB/Simulink, validation of the proposed strategy and demonstrate the effectiveness of the proposed strategy. Simulation results show that the proposed strategy can effectively improve the performance of the system of rational reactive power distribution and stable bus voltage of multiple inverters and can provide reference for the parallel use of multiple inverters

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

Citation Download Citation

Mengda Li, Hanghang Zhu, Yueyue Sun, Guangyao Pei, and Han Ning "Research on improving sagging control strategy based on distributed inverter", Proc. SPIE 13445, International Conference on Electronics, Electrical and Information Engineering (ICEEIE 2024), 134450A (11 December 2024); https://doi.org/10.1117/12.3052333

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

Includes PDF, HTML & Video, when available