A Modified Active Disturbance Rejection Control Strategy for Current Balance in Parallel LLC Resonant Converter

Zhang, Chenzhong; Duan, Bin; Song, Jinqiu; Su, Qijun; Zhang, Chenghui

doi:10.1109/ccdc55256.2022.10033970

Cited by 3 publications

(1 citation statement)

References 16 publications

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“…This method uses a reduced order model for modeling, which has a relatively simple calculation process and achieves good dynamic performance, but the output steady-state error is significant. A hybrid control strategy for LLC converters using linear active disturbance rejection control (ADRC) is proposed in the paper [15,16]. In this article, frequency modulation is used to control the output voltage, while phase angle compensation is used to compensate for gain errors caused by changes in resonant components.…”

Section: Introductionmentioning

confidence: 99%

Passivity-based control strategy for resonant converter based on Euler–Lagrange model

Zhang,

Liang,

Wang

et al. 2023

Archives of Electrical Engineering

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The LLC resonant converter is a widely used DC/DC converter that offers the benefit of enabling soft switching compared to classical DC/DC converters. However, traditional PI control strategy based on a linear model has drawbacks such as slow dynamic response and poor anti-interference performance. To overcome the shortage, a passivitybased control strategy based on the Euler–Lagrange (EL) model is proposed in this paper to improve the dynamic performance of the half-bridge LLC resonant converter. In addition, the stability of the system based on the proposed strategy is analyzed and verified. Further, the effectiveness and performance of the proposed strategy is verified in the simulation by comparing with the traditional PI controller. Finally, a prototype was built to verify the dynamic performance of the LLC resonant converter based on the proposed control strategy.

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Section: Introductionmentioning

confidence: 99%

Passivity-based control strategy for resonant converter based on Euler–Lagrange model

Zhang,

Liang,

Wang

et al. 2023

Archives of Electrical Engineering

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Review of Current-Sharing Schemes for Multiphase LLC Resonant Converter

Dong,

Xie

2025

IEEE Trans. Power Electron.

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Design of high voltage and high power supply for aerospace based on LLC resonant converter

Wu,

Zhen,

Wan

et al. 2024

Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023)

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With the development of space technology, space load equipment, including high-power electric thrusters, have more and more stringent requirements on DC power supply, such as voltage, power, efficiency and reliability. However, the particularity of space environment and the performance of existing astronaut-grade devices limit the direct realization of high-voltage busbar output. The 100V bus voltage of domestic spacecraft can not meet the demand of high-power load. Based on the 100V bus supply voltage of the spacecraft, this paper adopts a half-bridge LLC resonant converter to realize the simulation design of 600V output voltage and 1kW output power. Through the FHA modeling and modal analysis of the LLC resonant converter, the circuit parameter design is completed, and the influence of the circuit parasitic parameters is analyzed theoretically and through simulation. The correctness of the design is verified by Simulink simulation. Considering the reliability, the spatial high-power system adopts multi-module parallel topology, which is conducive to improving the power and power density of single module, and the sub-side capacitor array structure is convenient for multi-module parallel, which provides a feasible scheme for the miniaturization of space power supply.

show abstract

A Modified Active Disturbance Rejection Control Strategy for Current Balance in Parallel LLC Resonant Converter

Cited by 3 publications

References 16 publications

Passivity-based control strategy for resonant converter based on Euler–Lagrange model

Passivity-based control strategy for resonant converter based on Euler–Lagrange model

Review of Current-Sharing Schemes for Multiphase LLC Resonant Converter

Design of high voltage and high power supply for aerospace based on LLC resonant converter

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