An Active Clamped Bridgeless Isolated SEPIC PFC Converter

doi:10.11985/2023.03.022

Abstract

Abstract:

The voltage stress of the power switch of the traditional isolated SEPIC power factor correction(PFC) converter is large, the efficiency of the traditional isolated SEPIC PFC converter is also limited because of the existence of the input rectifier bridge. An active clamped bridgeless isolated SEPIC PFC converter is proposed by using the bridgeless PFC technology and active clamp technology. Through the elimination of the rectifier bridge, the efficiency of the proposed converter is improved; through the use of active clamping technology, the soft switching of all switches is realized, the voltage stress of the power switch is reduced. Finally, a 70 W experimental prototype for aircraft in-seat power supply is built to achieve high power factor, high efficiency, and isolation between input and output, which verifies the correctness of the theoretical analysis.

Key words: Power factor correction, SEPIC converter, active clamping, bridgeless converter

CLC Number:

TM46

LIU Ruyao, SHEN Xia, CHEN Rui, XIANG Junjun, WANG Zhihao. An Active Clamped Bridgeless Isolated SEPIC PFC Converter[J]. Journal of Electrical Engineering, 2023, 18(3): 206-215.

Figures/Tables 13

References 23

[1]	LOW Q W, SIEK L. A single-stage dual-output tri-mode AC-DC regulator or inductively powered application[J]. IEEE Transactions on Circuits and Systems, 2019, 66(9):3620-3630.
[2]	经雯荔, 管乐诗, 王懿杰, 等. 高频AC/DC变换器优化控制策略研究[J]. 电源学报, 2020, 18(5):60-71. doi: 10.13234/j.issn.2095-2805.2020.5.60
	JING Wenli, GUAN Yueshi, WANG Yijie, et al. Research on optimal control strategy for high-frequency AC/DC converter[J]. Journal of Power Supply, 2020, 18(5):60-71. doi: 10.13234/j.issn.2095-2805.2020.5.60
[3]	阎铁生, 陶权保, 胡啸天, 等. 基于双路恒流输出单级Cuk PFC变换器的LED驱动电路[J]. 电机与控制学报, 2020, 24(7):139-146.
	YAN Tiesheng, TAO Quanbao, HU Xiaotian, et al. LED driving circuit based on single stage Cuk PFC converter with dual constant current outputs[J]. Electric Machines and Control, 2020, 24(7):139-146.
[4]	游芳, 甘雪, 魏金成, 等. 新型无桥DCM Pseudo-Boost PFC变换器研究[J]. 电气工程学报, 2015, 10(11):39-45.
	YOU Fang, GAN Xue, WEI Jincheng, et al. Research on novel bridgeless DCM Pseudo-Boost PFC converter[J]. Journal of Electrical Engineering, 2015, 10(11): 39-45. doi: 10.12677/JEE.2022.101005
[5]	孙百军, 施宏, 邹晓渔. 基于航空电网的Boost PFC变换器设计[J]. 电力电子技术, 2018, 52(2):90-93.
	SUN Baijun, SHI Hong, ZOU Xiaoyu. Design of Boost PFC converter based on aviation power grid[J]. Power Electronics, 2018, 52(2):90-93.
[6]	TARZAMNI H, FARHAD P E, FARZAD T, et al. Reliability assessment of conventional isolated PWM DC-DC converters[J]. IEEE Access, 2021, 9:46191-46200. doi: 10.1109/ACCESS.2021.3067935
[7]	阎铁生, 李明洪, 陶权保, 等. DCM-CRM Boost-Flyback单级PFC变换器[J]. 电力自动化设备, 2019, 39(11):152-158.
	YAN Tiesheng, LI Minghong, TAO Quanbao, et al. DCM-CRM Boost-Flyback single-stage PFC converter[J]. Electric Power Automation Equipment, 2019, 39(11):152-158.
[8]	GOYAL V K, SHUKLA A. Isolated DC-DC Boost converter for wide input voltage range and wide load range applications[J]. IEEE Transactions on Industrial Electronics, 2021, 68(10):9527-9539. doi: 10.1109/TIE.2020.3029479
[9]	章治国, 刘俊良, 郭强, 等. 一种单级隔离型软开关功率因数校正变换器[J]. 电工技术学报, 2018, 33(14):3222-3230.
	ZHANG Zhiguo, LIU Junliang, GUO Qiang, et al. A single stage isolated soft switching power factor correction converter[J]. Transactions of China Electrotechnical Society, 2018, 33(14):3222-3230.
[10]	TIBOLA G, BARBI I. Isolated three-phase high power factor rectifier based on the SEPIC converter operating in discontinuous conduction mode[J]. IEEE Transactions on Power Electronics, 2013, 28(11):4962-4969. doi: 10.1109/TPEL.2013.2247775
[11]	LEE S, DO H. Isolated SEPIC DC-DC converter with ripple-free input current and lossless snubber[J]. IEEE Transactions on Industrial Electronics, 2018, 65(2):1254-1262. doi: 10.1109/TIE.2017.2733440
[12]	LODH T, MAJUMDER T. A high gain high efficiency and compact isolated Sepic DC-DC converter[C]// International Conference on Signal Processing,Communication,Power and Embedded System (SCOPES),Paralakhemundi,India, 2016:1506-1511.
[13]	ONGARO F, SAGGINI S. ZVS isolated active clamp Sepic converter for high power LED applications[C]// Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), February 5-9,2012,Orlando,FL,USA. IEEE, 2012:957-962.
[14]	WU D, AYYANAR R. Isolated active-clamped SEPIC PFC converter based on SiC devices and integrated magnetics[C]// IEEE 7th Workshop on Wide Bandgap Power Devices and Applications (WiPDA), October 29-31,2019,Raleigh,NC,USA. IEEE, 2019:151-156.
[15]	WU D, AYYANAR R. Single-phase active-clamped isolated SEPIC PFC converter with partial power processing output stage[C]// IEEE Applied Power Electronics Conference and Exposition (APEC),New Orleans,LA,USA. IEEE, 2020:1285-1291.
[16]	WU D, AYYANAR R, MADHURA S, et al. High-performance active-clamped isolated SEPIC PFC converter with SiC devices and lossless diode clamp[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, 8(1):567-577. doi: 10.1109/JESTPE.6245517
[17]	马红波, 郑聪, 余文松, 等. 单开关管无桥SEPIC PFC变换器[J]. 电力自动化设备, 2014, 34(4):72-77.
	MA Hongbo, ZHENG Cong, YU Wensong, et al. Single-switch bridgeless SEPIC PFC converter[J]. Electric Power Automation Equipment, 2014, 34(4):72-77.
[18]	徐鑫雨, 吴红飞, 贾益行, 等. 基于三端口无桥PFC的两级式隔离型双输出AC-DC变换器[J]. 中国电机工程学报, 2020, 40(22):7431-7440.
	XU Xinyu, WU Hongfei, JIA Yixing, et al. Two stage isolated dual output AC-DC converter based on three port bridgeless PFC[J]. Proceedings of the CSEE, 2020, 40(22):7431-7440.
[19]	SINGH B, KUSHWAHA R. A PFC based EV battery charger using a bridgeless isolated SEPIC converter[J]. IEEE Transactions on Industry Applications, 2020, 56(1):477-487. doi: 10.1109/TIA.28
[20]	JHA A, SINGH B. Bridgeless SEPIC PFC converter for multistring LED driver[J]. Journal of the Institution of Engineers (India):Series B, 2018, 99(4):353-367. doi: 10.1007/s40031-018-0328-6
[21]	王金平, 胡凡宇, 侯良奎, 等. 一种单级无桥隔离型PFC变换器[J]. 中国电机工程学报, 2017, 37(24):7276-7283.
	WANG Jinping, HU Fanyu, HOU Liangkui, et al. A single-stage bridgeless isolated PFC converter[J]. Proceedings of the CSEE, 2017, 37(24):7276-7283.
[22]	CHEN Y, MO S. A bridgeless active-clamp power factor correction isolated SEPIC converter with mixed DCM/CCM operation[C]// International Future Energy Electronics Conference (IFEEC), November 3-6,2013,Tainan,Taiwan,China. IEEE, 2013:1-6.
[23]	XU S, QIAN Q, TAO T, et al. Small signal modeling and control loop design of critical conduction mode active clamp flyback converter[J]. IEEE Transactions on Power Electronics, 2021, 36(6):7250-7263. doi: 10.1109/TPEL.63

参数	数值(型号)
输入交流电压有效值V_rms/V	90~135
输入交流电压频率f_g/Hz	400
开关频率f_s/kHz	50
输出直流电压V₀/V	28
输出功率P_O/W	70
变压器T变比n_p∶n_s	3.3∶1
输入电感L₁/μH	250
中间电容C₁/μF	1
钳位电容C_c/μF	0.47
励磁电感L_m/μH	300
输出滤波电容C₀/μH	2 000
功率开关管S₁、S₂、S₃型号	FCP11N60F
主二极管VD₁、VD₂型号	FFSP1665A
副边二极管VD₀型号	MBR40250

方法	主电路结构(复杂度)	输入电压范围/频率	输出电压/V	输出功率/W	开关频率/ kHz	功率器件数量	峰值效率(%)	控制电路复杂度	成本
文献[9]	单级隔离 (一般)	220 V/50 Hz	108	37.8	100	2MOSFET，8二极管	83	一般	中
文献[17]	单级非隔离(一般)	120 V/60 Hz	50	100	100	1MOSFET，5二极管	90.5	复杂	低
文献[20]	多级隔离 (复杂)	90~265 V/50 Hz	12	300	20	9MOSFET，6二极管	85	复杂	高
文献[21]	单级隔离 (一般)	90~130 V/50 Hz	100	80	50	2MOSFET，2二极管	89.5	一般	中
文献[22]	单级隔离 (一般)	110 V/50 Hz	48	150	50	4MOSFET，3二极管	91	一般	中
本文	单级隔离 (一般)	90~135 V/400 Hz	28	70	50	3MOSFET，3二极管	90.22	简单	低