基于简化状态轨迹的半桥LCC谐振变换器无噪声Burst模式控制策略

doi:10.19595/j.cnki.1000-6753.tces.201644

Abstract
Figure/Table
References
Related Citation (4)

Download: PDF (4020 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract When the half-bridge LCC resonant converter works in light load mode, its high switching frequency and large reactive power in the resonant circuit reduce the efficiency of the converter significantly. Burst mode is an effective method to improve the light load efficiency of the converter. However, the conventional burst mode will cause the voltage and current to oscillate and further increase the loss, and even cause the transformer to saturate. In this paper, the simplified state sub-trajectories of different modes of half-bridge LCC converter were derived, and the state trajectory control strategy of the burst mode for half-bridge LCC converter was derived. By controlling the switching time of the half-bridge, there is no oscillation during burst off time, which makes the half-bridge LCC converter work in high efficiency stably. Besides, considering the noise pollution problem of burst mode under extremely light load conditions, the improved control is proposed based on the simplified state trajectory to ensure that the LCC converter works outside the audible band to avoid noise. Finally, an experimental prototype was built. The experimental results show that the proposed method can significantly improve the light load efficiency of the half-bridge LCC converter, and eliminate the oscillation and noise pollution of the resonant circuit.

Key words： Half-bridge LCC resonant converter Burst mode simplified state trajectory state trajectory control noise suppression

Received: 15 December 2020

PACS:

TM46

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Zhao Jun
	Lin Hongyi
	Sun Xiaowei
	Wu Liang
	Chen Guozhu

Cite this article:

Zhao Jun,Lin Hongyi,Sun Xiaowei等. A Novel Noiseless Burst Mode Control of Half-Bridge LCC Resonant Converter Based on Simplified State Trajectory[J]. Transactions of China Electrotechnical Society, 2021, 36(20): 4215-4224.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201644 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I20/4215

[1] 夏冰, 阮新波, 陈武. 高压大功率场合LCC谐振变换器的分析与设计[J]. 电工技术学报, 2009, 24(5): 60-66.
Xia Bing, Ruan Xinbo, Chen Wu.Analysis and design of LCC resonant converter for high voltage and high power applications[J]. Transactions of China Electro-technical Society, 2009, 24(5): 60-66.
[2] 张洪寅, 童朝南, 王泽庭. 基于临界模态的DCM-LCC谐振变换器的归一化分析与设计[J]. 电工技术学报, 2019, 34(1): 103-115.
Zhang Hongyin, Tong Chaonan, Wang Zeting.Nor-malized analysis and design of DCM-LCC resonant converter based on critical current mode[J]. Transa-ctions of China Electrotechnical Society, 2019, 34(1): 103-115.
[3] 刘军, 郭瑭瑭, 常磊, 等. 高压变压器寄生电容对串联谐振变换器特性的影响[J]. 中国电机工程学报, 2012, 32(15): 16-23, 179.
Liu Jun, Guo Tangtang, Chang Lei, et al.Effects of the parasitic capacitance on characteristics of series resonant converters[J]. Proceedings of the CSEE, 2012, 32(15): 16-23, 179.
[4] 伍梁, 孙晓玮, 赵钧, 等. 基于大信号模型的多模块LCC级联变换器输出电压不均衡分析法[J]. 电工技术学报, 2020, 35(24): 5142-5151.
Wu Liang, Sun Xiaowei, Zhao Jun, et al.Analysis of output voltage imbalance for cascaded multi-module LCC converters based on large-signal model[J]. Transactions of China Electrotechnical Society, 2020, 35(24): 5142-5151.
[5] 严国鹏. 静电除尘用半桥LCC谐振器的研究[D]. 长沙: 湖南大学, 2017.
[6] 张治国. 具有电容输出滤波器谐振变换器的研究[D]. 广州: 华南理工大学, 2012.
[7] 樊生文, 李海思, 王泽庭, 等. 高压电子束焊机LCC谐振变换器的轨迹分析[J]. 电力电子技术, 2018, 52(7): 57-60.
Fan Shengwen, Li Haisi, Wang Zeting, et al.Trajectory analysis of LCC resonant converter for high voltage electron beam welder[J]. Power Electro-nics, 2018, 52(7): 57-60.
[8] Wu Liang, Zhao Jun, Lin Hongyi, et al.State trajectory control of start-up for LCC resonant con-verters with capacitive output filter[J]. IEEE Journal of Emerging and Selected Topics in Power Elec-tronics, 2021, 9(2): 2317-2327.
[9] 张治国, 谢运祥, 袁兆梅. LCC谐振变换器的电路特性分析[J]. 电工技术学报, 2013, 28(4): 50-57.
Zhang Zhiguo, Xie Yunxiang, Yuan Zhaomei.Analysis of circuit characteristics of LCC resonant converter[J]. Transactions of China Electrotechnical Society, 2013, 28(4): 50-57.
[10] Li Zhenyu, Zhao Jun, Chen Zheng, et al.A design method for LCC resonant converter over wide load range with wide-range input and output[C]//IEEE PES Asia-Pacific Power and Energy Engineering Con-ference, Macao, 2019: 1-6.
[11] 高铁峰, 张森, 赵剑锋, 等. LCC谐振变换器非对称移相控制及效率优化方法[J]. 电工技术学报, 2017, 32(8): 208-219.
Gao Tiefeng, Zhang Sen, Zhao Jianfeng, et al.Asymmetrical phase shift control and efficiency optimization strategy for LCC resonant converter[J]. Transactions of China Electrotechnical Society, 2017, 32(8): 208-219.
[12] Vakacharla V R, Rathore A K.Isolated soft switching current fed LCC-T resonant DC-DC converter for PV/fuel cell applications[J]. IEEE Transactions on Industrial Electronics, 2019, 66(9): 6947-6958.
[13] Song Seung-Ho, Cho Chan-Gi, Park Su-Mi, et al.Design and analysis of an LCC resonant converter for xenon flash lamp simmer circuit[J]. IEEE Transa-ctions on Dielectrics and Electrical Insulation, 2019, 26(2): 484-491.
[14] Chuang Yingchun, Ke Yulung, Chuang Hungshiang, et al.Analysis and implementation of half-bridge series-parallel resonant converter for battery chargers[J]. IEEE Transactions on Industry Appli-cations, 2011, 47(1): 258-270.
[15] Mao Saijun, Popovic J, Ramabhadran R, et al.Com-parative study of half-bridge LCC and LLC resonant DC-DC converters for ultra-wide output power range applications[C]//European Conference on Power Elec-tronics and Applications, Geneva, 2015: 1-10.
[16] 冯兴田, 邵康, 崔晓, 等. 基于多模态切换的宽电压增益LLC谐振变换器控制策略[J]. 电工技术学报, 2020, 35(20): 4350-4360.
Feng Xingtian, Shao Kang, Cui Xiao, et al.Control strategy of wide voltage gain LLC resonant converter based on multi-mode switching[J]. Transactions of China Electrotechnical Society, 2020, 35(20): 4350-4360.
[17] 刘晓东, 董保成, 吴慧辉, 等. 基于并联变压器切换的LLC谐振变换器宽范围效率优化控制策略[J]. 电工技术学报, 2020, 35(14): 3018-3029.
Liu Xiaodong, Dong Baocheng, Wu Huihui, et al.Wide range efficiency optimization control strategy for LLC resonant converter based on parallel trans-former switching[J]. Transactions of China Electro-technical Society, 2020, 35(14): 3018-3029.
[18] 汤欣喜, 邢岩, 吴红飞, 等. 兼顾稳态效率和暂态升压能力的LLC变换器[J]. 电工技术学报, 2020, 35(4): 767-774.
Tang Xinxi, Xing Yan, Wu Hongfei, et al.An improved LLC converter considering steady-state efficiency and transient boost capability[J]. Transa-ctions of China Electrotechnical Society, 2020, 35(4): 767-774.
[19] Fei Chao, Li Qiang, Fred C L.Digital imple-mentation of light-load efficiency improvement for high-frequency LLC converters with simplified optimal trajectory control[J]. IEEE Journal of Emer-ging and Selected Topics in Power Electronics, 2018, 6(4): 1850-1859.
[20] Pernia A M, Miguel J P, Pedro J V, et al.LCC resonant multilevel converter for X-ray applications[J]. Energies, 2017, 10(10): 1573.
[21] 高贺, 张军明. 一种抑制LLC电路低频Burst噪音的方法[J]. 电子技术, 2018, 47(11): 64-68.
Gao He, Zhang Junming.A method to inhibit audible noise caused by low-frequency Burst mode of LLC resonant converter[J]. Electronic Technology, 2018, 47(11): 64-68.
[22] 江崴. 全桥LLC变换器轨迹控制策略的研究[D]. 杭州: 浙江大学, 2019.