一种改进型单相图腾柱整流器平均电流控制方法

doi:10.16180/j.cnki.issn1007-7820.2023.05.004

摘要/Abstract

摘要：

为有效抑制电力电子设备给电网带来的谐波污染并解决能源短缺问题,高效AC/DC PFC变换器受到了广泛关注。文中针对图腾柱PFC变换器转换效率和电流过零点尖峰问题,利用功率开关管替代传统拓扑结构中的二极管,并提出了一种基于CCM模式的改进平均电流控制策略。该控制策略通过引入互补PWM,改进高频桥臂控制方式,降低了二极管续流损耗,提高了变换器转换效率。文中阐述了图腾柱拓扑结构电路工作原理以及控制策略,并在MATLAB/Simulink平台建立相应仿真模型对所提方案进行了验证。在此基础上,文中还设计并搭建一台原理样机。实验结果表明新方法的转换效率提高了1.5%,且电流无明显过零尖峰,证明了所提改进型控制策略的有效性和可行性。

关键词: 谐波污染, 变换器, PFC, 图腾柱, 高效率, 连续导通模式, 平均电流, PWM

Abstract:

In order to effectively suppress the harmonic pollution caused by power electronic equipment to the power grid and solve the problem of energy shortage, high-efficiency AC/DC PFC converter has attracted extensive attention. In order to solve the problems of conversion efficiency and current zero-crossing distortion of totem pole PFC converter, the diode in traditional topology is replaced by power switching tube, and an improved average current control strategy based on CCM mode is proposed. The control strategy improves the control mode of high-frequency bridge arm, reduces diode freewheeling loss and improves the conversion efficiency of the converter by introducing complementary PWM. The working principle and control strategy of totem pole topology circuit are described in detail, and the proposed strategy is simulated based on MATLAB/Simulink platform. On this basis, a prototype is designed and built. The experimental results show that the conversion efficiency of the proposed method is improved by 1.5%, and the current has no obvious zero-crossing peak, which proves the effectiveness and feasibility of the proposed improved control strategy.

Key words: harmonic pollution, converter, PFC, totem pole, high efficiency, CCM, average current, PWM

中图分类号:

TP303

夏远帅,谢明,杨洋,姚磊. 一种改进型单相图腾柱整流器平均电流控制方法[J]. 电子科技, 2023, 36(5): 23-27.

XIA Yuanshuai,XIE Ming,YANG Yang,YAO Lei. An Improved Average Current Control Method for Single-Phase Totem Pole Rectifier[J]. Electronic Science and Technology, 2023, 36(5): 23-27.

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参考文献 16

[1]	李林, 谢明, 黄松. 模块化并联均流单相逆变器设计[J]. 电子科技, 2021, 34(10):27-31.
	Li Lin, Xie Ming, Huang Song. Design of modular parallel current sharing single-phase inverter[J]. Electronic Science and Technology, 2021, 34(10):27-31.
[2]	段铁, 黄焱, 汪洋. 载波同步中数字锁相环的重构设计[J]. 电子科技, 2019, 32(8):41-45.
	Duan Tie, Huang Yan, Wang Yang. Reconfiguration design of digital PLL in carrier synchronous[J]. Electronic Science and Technology, 2019, 32(8):41-45.
[3]	贲洪奇, 张继红, 刘桂花. 开关电源中的有源功率因数校正技术[M]. 北京: 机械工业出版社, 2010:37-50.
	Ben Hongqi, Zhang Jihong, Liu Guihua. Active power factor correction technology in switching power supply[M]. Beijng: China Machine Press, 2010:37-50.
[4]	周左, 汪洋, 李正明. 基于占空比控制的Vienna整流器模型预测控制策略[J]. 电力系统保护与控制, 2021, 49(10):162-169.
	Zhou Zuo, Wang Yang, Li Zhengming. Model predictive control strategy of a Vienna rectifier based on duty cycle control[J]. Power System Protection and Control, 2021, 49(10):162-169.
[5]	李灿, 刘国旺, 龙玉莲, 等. 三相高功率PWM整流变换器的设计与开发[J]. 电力电子技术, 2021, 55(1):104-107.
	Li Can, Liu Guowang, Long Yulian, et al. Design and development of three-phase high power PWM rectifier converter[J]. Power Electronics, 2021, 55(1):104-107.
[6]	王兆安, 刘进军. 电力电子技术[M]. 5版. 北京: 机械工业出版社, 2009:92-111.
	Wang Zhaoan, Liu Jinjun. Power electronics technology[M]. 5th ed. Beijing: China Machine Press, 2009:92-111.
[7]	张崇巍, 张兴. PWM整流器及其控制[M]. 北京: 机械工业出版社, 2003:53-66.
	Zhang Chongwei, Zhang Xing. PWM rectifier and its control[M]. Beijing: China Machine Press, 2003:53-66.
[8]	陈喜亮. 图腾柱无桥PFC变流器研究[D]. 杭州: 浙江大学, 2014:12-39.
	Chen Xiliang. Research on totem-pole bridgeless PFC converter[D]. Hangzhou: Zhejiang University, 2014:12-39.
[9]	Huber L, Jang Y, Jovanovic M. Performance evaluation of bridgeless PFC boost rectifiers[J]. IEEE Transactions on Power Electronics, 2008, 23(3):1381-1390. doi: 10.1109/TPEL.2008.921107
[10]	朱敏慧. 意法半导体:新能源汽车发展推动SiC和GaN应用[J]. 汽车与配件, 2020(9):62-63.
	Zhu Minhui. STMicroelectronics: The development of new energy vehicles promotes the application of SiC and GaN[J]. Automobile and Accessories, 2020(9):62-63.
[11]	Liu Z, Lee F C, Li Q, et al. Design of GaN-Based MHz totem-pole PFC rectifier[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2016, 4(3):799-807. doi: 10.1109/JESTPE.2016.2571299
[12]	张俊超. 基于GaN的全数字控制图腾柱式无桥PFC的研究[D]. 锦州: 辽宁工业大学, 2018:32-40.
	Zhang Junchao. Research on full digital control of totem-pole bridgeless PFC based on GaN[D]. Jinzhou: Liaoning University of Technology, 2018:32-40.
[13]	经雯荔. 基于图腾柱软开关PFC电路的AC/DC变换器研究[D]. 哈尔滨: 哈尔滨工业大学, 2020:4-10.
	Jing Wenli. Research on AC/DC converter based on totem-pole soft switching PFC circuit[D]. Harbin: Harbin Institute of Technology, 2020:4-10.
[14]	李力超, 何维, 吴新科. 基于软开关图腾柱拓扑的AC/DC电源[J]. 电力电子技术, 2021, 55(2):77-79.
	Li Lichao, He Wei, Wu Xinke. AC/DC power supply based on soft switching totem-pole topology[J]. Power Electronics, 2021, 55(2):77-79.
[15]	Muhammad K, Lu D D C. ZCS bridgeless boost PFC rectifier using only two active switches[J]. IEEE Transactions on Industrial Electronics, 2015, 62(5):2795-2806. doi: 10.1109/TIE.41
[16]	易俊宏, 马红波, 盂庆伟. 高效率、高功率密度无桥PFC设计[J]. 电力电子技术, 2017, 51(12):112-116.
	Yi Junhong, Ma Hongbo, Meng Qingwei. Design of high efficiency and high power density bridgeless PFC converters[J]. Power Electronics, 2017, 51(12):112-116.

名称	导通电阻/mΩ	正向压降/V
SiC MOS管	30	4.1
SiC二极管	—	1.4
Si MOS管	620	—

参数名称	参数值	参数名称	参数值
电网电压	50 V	直流电容	2 000 μF
滤波电感	3.5 mH	负载电阻	108 Ω
直流电压	90 V	开关频率	50 kHz

	交流电压 /V	交流电流 /A	输出电压 /V	效率 /%
传统	50	1.50	90	94.0
改进	50	1.58	90	97.5