Abstract：Aiming at perfecting present analysis of the interleaving and magnetically integrated bidirectional DC/DC converter working in DCM mode, a 2-phase interleaving magnetically integrated Buck/Boost bidirectional DC/DC converter is studied as an example.With light load, the MOS tube is turned off in order to utilize the MOS tube body diode with one-way conductive property to avoid negative inductor current, thereby reduce the energy loss in the transformer and improve the efficiency of the converter.Firstly, intensive steady state study for the operation in the condition of Buck’s bidirectional DC/DC converter of DCM mode has been carried out.Secondly, the working conditions of the converter’s conversion conditions and the critical load current of the mode conversion are analyzed.By introducing the relationship between the variable ratio and other parameters, specific analysis of the changing rule of the phase current of each phase is performed when the converter under various working conditions (CCM/DCM).The change rule of the converter’s total output current is then found.Finally, through simulation and experiment with detailed data, the correctness of the theoretical analysis is verified.
杨玉岗, 邹雨霏, 代少杰, 马杰. DCM模式下交错并联磁集成双向DC/DC变换器的稳态性能分析[J]. 电工技术学报, 2015, 30(11): 60-70.
Yang Yu-gang, Zou Yu-fei, Dai Shao-jie, Ma Jie. Steady State Performance Analysis of the Interleaving and Magnetically Integrated Bidirectional DC/DC Converter Under DCM Mode. Transactions of China Electrotechnical Society, 2015, 30(11): 60-70.
[1] Ni Liqin, Patterson D J, Hudgins J L.High power current sensorless bidirectional 16-phase interleaved DC-DC converter for hybrid vehicle application[J].IEEE Transactions on Power Electronics, 2012, 27(3):1141-1151. [2] Hegazy O, Mierlo J V, Lataire P.Analysis modeling and implementation of a multidevice interleaved DC/DC converter for fuel cell hybrid electric vehicles[J].IEEE Transactions on Power Electronics, 2012, 27(11):4445-4458. [3] Liu Dehong, Hu An, Wang Guangsen, et al.Current sharing schemes for multiphase interleaved DC/DC converter with FPGA implementation[C].International Conference on Electrical and Control Engineering (ICECE)[C], Wuhan, China, 2010:3512-3515. [4] Grunau S, Fox M, Fuchs F W.Comparison of a three and four phase interleaved bidirectional DC/DC-converter for the operation in an energy storage system in wind turbines[C].15th International Power Electronics and Motion Control Conference (EPE/PEMC), Novi Sad, 2012. [5] De D, Klumpner C, Patel C, et al.Modelling and control of a multi-stage interleaved DC-DC converter with coupled inductors for super-capacitor energy storage system[J].IET Power Electronics, 2013, 6(7):1360-1375. [6] 陆治国, 祝万平, 刘捷丰, 等.一种新型交错并联双向DC/DC 变换器[J].中国电机工程学报, 2012, 33(12):39-46. Lu Zhiguo, Zhu Wanping, Liu Jiefeng, et al.A novel interleaved parallel bidirectional DC/DC converter[J].Proceedings of the CSEE, 2013, 33(12):39-46. [7] 汪东, 赵一, 石健将, 等.具有开关电容的隔离型交错并联Boost变换器[J].中国电机工程学报, 2009, 29(21):14-20. Wang Dong, Zhao Yi, Shi Jianjiang, et al.Interleaved and isolated boost converters with switched capacitors[J].Proceedings of the CSEE, 2009, 29(21):14-20. [8] 陈为, 王小博.一种具多路LED自动均流功能的反激式磁集成变换器[J].中国电机工程学报, 2012, 32(30):30-36. Chen Wei, Wang Xiaobo.A novel flyback converter with automatic current sharing for LED-lighting systems dependent on integrated magnetic technique[J].Proceedings of the CSEE, 2012, 32(30):30-36. [9] Wang Laili, Pei Yunqing, Yang Xu, et al.Design of ultrathin LTCC coupled inductors for compact DC/DC converters[J].IEEE Transactions on Power Electronics, 2011, 26(9):2528-2541. [10]Dong Yan, Yang Yugang, Lee F C, et al.The short winding path coupled inductor voltage regulators[C].23rd Annual IEEE Applied Power Electronics Conference and Exposition, Austin, TX, 2008:1446-1452. [11]Schroeder J C, Petersen M, Fuchs F W.One-sensor current sharing in multiphase interleaved DC/DC converters with coupled inductors[C].2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC), Novi Sad, Socialist Federal Republic of Yugoslavia, 2012. [12]Hirakawa M, Nagano M, Watanabe Y, et al.High power density interleaved DC/DC converter using a 3-phase integrated close-coupled inductor set aimed for electric vehicles[C].2010 IEEE Energy Conversion Congress and Exposition (ECCE), Atlanta, GA, 2010:2451-2457. [13]Fu Wei, Tan Siang Tong, Fayed A.Switching and conduction loss analysis of buck converters operating in DCM-only scenarios[C].2013 IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China, 2013:921-924. [14]Chia Chu-Hsiang, Lei Pui-Sun, Chang R C H.A high-efficiency PWM DC-DC buck converter with a novel DCM control under light-load[C].International Conference on Circuits and Systems (ISCAS), Rio de Janeiro, 2011:237-240. [15]Sun Zhuochao, Chew K W R, Tang H, et al.Adaptive gate switching control for discontinuous conduction mode DC-DC Converter[J].IEEE Transactions on Power Electronics, 2014, 29(3):1311-1320. [16]姚凯, 阮新波, 冒小晶, 等.电流断续模式 Boost 功率因数校正变换器的变占空比控制[J].电工技术学报, 2011, 26(11):14-23. Yao Kai, Ruan Xinbo, Mao Xiaojing, et al.DCM boost pfc converter with variable duty cycle control[J].Proceedings of the CSEE, 2011, 26(11):14-23. [17]Yang Yugang, Li Tao, Liu Jianjia, et al.A comprehensive analysis of coupled inductors in 4 phases interleaving bidirectional DC/DC converter[C].2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Aalborg, Danmark, 2012:603-607. [18]杨玉岗, 李涛, 冯本成.交错并联磁集成双向DC/DC变换器的设计准则[J].中国电机工程学报, 2012, 32(30):37-45. Yang Yugang, Li Tao, Feng Bencheng.Design criterion for interleaving and magnetically integrated bidirectional DC/DC converters[J].Proceedings of the CSEE, 2012, 32(30):37-45. [19]卢增艺, 陈为.多通道交错并联反激变换器磁集成技术研究[J].中国电机工程学报, 2009, 29(18):41-46. Lu Zengyi, Chen Wei.Research on magnetic integration of multi-phase interleaving flyback converter[J].Proceedings of the CSEE, 2009, 29(18):41-46. [20]Ray Biswajit, Kosai Hiroyuki, McNeal Seana, et al.Performance analysis of a multi-mode interleaved boost converter[C].Energy Conversion Congress and Exposition (ECCE), San Jose, USA, 2009:2176-2183.
2015, Vol. 30 
