Proceedings Article10.1109/iciea58696.2023.10241374
An Improved Dynamic Performance Control Method for CLLC Resonant Converter Based on State Trajectory
Borui Liu,Lei Li,Shanlu Zhang,Longteng Jiao,Herry Wang,Xingyu Wu,Lulu Li +6 more
- 18 Aug 2023
pp 931-936
TL;DR: An improved dynamic performance control method for CLLC resonant converter based on state trajectory, which improves dynamic performance compared to traditional linear control.
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Abstract: CLLC converter is a promising topology for isolated bidirectional converter applications such as aerospace power supply, uninterruptible Power Supply, high dynamic control is required. In this paper, an improved dynamic performance control method based on state trajectory for CLLC converter is proposed. The state trajectory model of CLLC is generated, and the optimal path for CLLC converter is established using this model in load transient. The pulse widths of the gate-driving signals are calculated according to the variation of load current. The correctness of the proposed state trajectory model and dynamic performance of the proposed control method are verified by simulation, which demonstrates an improvement in dynamic performance compared to the traditional linear control.
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References
Design Methodology of Bidirectional CLLC Resonant Converter for High-Frequency Isolation of DC Distribution Systems
TL;DR: In this paper, a bidirectional full-bridge CLLC resonant converter using a new symmetric LLC-type resonant network is proposed for low-voltage direct current power distribution system.
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Simplified Optimal Trajectory Control (SOTC) for LLC Resonant Converters
TL;DR: In this article, a simplified optimal trajectory control (SOTC) for the LLC resonant converter is proposed, where a linear compensator such as proportionalintegral or proportional-integral-derivative (PID) is used, controlling the switching frequency to eliminate the steady state error.
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Implementation of optimal trajectory control of series resonant converter
TL;DR: In this article, the authors proposed an optimal trajectory control method based on the insight gained from a stateplane analysis, which is summarized by utilizing the required transistor trajectory as the control law, this control method attempts to reach its steady state operation in a time-optimal manner.
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Mode analysis and optimum design of bidirectional CLLC resonant converter for high-frequency isolation of DC distribution systems
Zheng Lv,Xiangwu Yan,Fang Yukang,Lei Sun +3 more
- 29 Oct 2015
TL;DR: In this article, the authors proposed a novel operation mode analysis for CLLC resonant converter, which not only explains the appearance of various operation modes, but also provides an accurate description of the gain characteristics and resonant behaviors.
85
Three-Step Switching Frequency Selection Criteria for Symmetrical CLLC-Type DC Transformer in Hybrid AC/DC Microgrid
Jingjing Huang,Xin Zhang +1 more
TL;DR: In this article, a switching frequency selection criteria (SFSC) approach is put forward for the symmetrical CLLC-DCT, and the experimental results verify that the semiregulated DCT based on the proposed approach not only improves efficiency, but also achieves the approximate PT ability with the relatively high cost closed-loop controlled DCT.
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