Mechanism of non-linearity and self-oscillation for H-bridge converters

Li Ji; Yuqiang Xiang; Xueqing Ma

doi:10.1117/12.2680590

31 May 2023 Mechanism of non-linearity and self-oscillation for H-bridge converters

Li Ji, Yuqiang Xiang, Xueqing Ma

Proceedings Volume 12704, Eighth International Symposium on Advances in Electrical, Electronics, and Computer Engineering (ISAEECE 2023); 1270407 (2023) https://doi.org/10.1117/12.2680590
Event: 8th International Symposium on Advances in Electrical, Electronics and Computer Engineering (ISAEECE 2023), 2023, Hangzhou, China

Abstract

This paper focuses on the non-linearity and the self-oscillation of H-bridge converters. Firstly, the nonlinear model and characteristics of the H-bridge converters are proposed based on the describing function method while considering the delay caused by digital control. Then, the stability and the self-oscillation of current loop control systems are analyzed according to the extended Nyquist stability criterion method. For verification, a prototype of the current loop control system is developed and the experiments regarding to current response affected by the open-loop gain, load characteristics and digital delay are carried out. The results show that the proposed model is accurate and effective.

Citation Download Citation

Li Ji, Yuqiang Xiang, and Xueqing Ma "Mechanism of non-linearity and self-oscillation for H-bridge converters", Proc. SPIE 12704, Eighth International Symposium on Advances in Electrical, Electronics, and Computer Engineering (ISAEECE 2023), 1270407 (31 May 2023); https://doi.org/10.1117/12.2680590

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