基于倍频采样的两相交错并联三电平双向直流变换器功率均衡解耦控制策略

doi:10.19595/j.cnki.1000-6753.tces.211057

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (2452 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A decoupled power-balancing control strategy for the two-phase interleaved parallel three-level bidirectional DC-DC converter is proposed in this paper, and the use of current sensors is effectively reduced. By analyzing the working principle of topology, an equivalent two-level analysis method under the two-phase interleaved parallel topology is obtained. On this basis, a decoupled power-balancing control strategy based on total current time-sharing and frequency-doubling sampling is proposed to fully decouple the voltage regulation of the converter from the current-balancing control between phases. In addition, the four channels of current sampling required by the conventional balance control are reduced to two channels, which simplifies the control structure. A small signal model based on the equivalent topology is established, and the specific design scheme of the controller parameters is given. Finally, the proposed control strategy is verified by a physical experiment.

Key words： Interleaved parallel three-level bidirectional DC converter decoupled power- balancing control frequency-doubling sampling strategy

Received: 15 July 2021

PACS:

TM46

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Fan Qigao
	Lu Yuzhuo
	Bi Kaitao
	An Quntao
	Zhu Yixin

Cite this article:

Fan Qigao,Lu Yuzhuo,Bi Kaitao等. Decoupled Power-Balancing Control Strategy for Two-Phase Interleaved Parallel Bidirectional DC Converter Based on Frequency-Doubling Sampling[J]. Transactions of China Electrotechnical Society, 2022, 37(14): 3654-3664.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.211057 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I14/3654

[1] 丁杰, 高双, 赵世伟, 等. 基于耦合电感的对称式交错并联低输入电流纹波高增益DC-DC变换器[J]. 电工技术学报, 2021, 36(7): 1507-1515.
Ding Jie, Gao Shuang, Zhao Shiwei, et al.Sym-metrical interleaved low input current ripple high step-up DC-DC converter based on coupled indu-ctor[J]. Transactions of China Electrotechnical Society, 2021, 36(7): 1507-1515.
[2] 孙玉树, 杨敏, 师长立, 等. 储能的应用现状和发展趋势分析[J]. 高电压技术, 2020, 46(1): 80-89.
Sun Yushu, Yang Min, Shi Changli, et al.Analysis of application status and development trend of energy storage[J]. High Voltage Engineering, 2020, 46(1): 80-89.
[3] 金科, 杨孟雄, 阮新波. 三电平双向变换器[J]. 中国电机工程学报, 2006, 26(18): 41-46.
Jin Ke, Yang Mengxiong, Ruan Xinbo.Three-level bidirectional DC-DC converter[J]. Proceedings of the CSEE, 2006, 26(18): 41-46.
[4] Dusmez S, Hasanzadeh A, Khaligh A, et al.Com-parative analysis of bidirectional three-level DC-DC converter for automotive applications[J]. IEEE Transactions on Industrial Electronics, 2015, 62(5): 3305-3315.
[5] 阮新波, 危健, 薛雅丽. 非隔离三电平变换器中分压电容均压的一种方法[J]. 中国电机工程学报, 2003, 23(10): 27-31.
Ruan Xinbo, Wei Jian, Xue Yali.A method to balance the voltage of the divided capacitors in non-isolated three-level converters[J]. Proceedings of the CSEE, 2003, 23(10): 27-31.
[6] 鲁思兆, 吴雷, 李思奇, 等. 零电压开关N型交错并联三电平双向DC-DC 变换器[J]. 电工技术学报, 2020, 35(2): 461-470.
Lu Sizhao, Wu Lei, Li Siqi, et al.Zero voltage switching N-type interleaved three-level bidire-ctional DC-DC converter[J]. Transactions of China Electrotechnical Society, 2020, 35(2): 461-470.
[7] 王朝强, 曹太强, 郭筱瑛, 等. 三相交错并联双向DC-DC变换器动态休眠控制策略[J]. 电工技术学报, 2020, 35(15): 3214-3223.
Wang Chaoqiang, Cao Taiqiang, Guo Xiaoying, et al.Dynamic dormancy control strategy of three-phase staggered parallel bidirectional DC-DC converter[J]. Transactions of China Electrotechnical Society, 2020, 35(15): 3214-3223.
[8] 姚志刚, 张煜欣, 刘涛, 等. 三相交错并联三电平DC-DC变换器的ZVS控制[J]. 中国电机工程学报, 2020, 40(13): 4256-4266.
Yao Zhigang, Zhang Yuxin, Liu Tao, et al.ZVS control of an interleaved three-phase three-level DC-DC converter[J]. Proceedings of the CSEE, 2020, 40(13): 4256-4266.
[9] 孙孝峰, 袁野, 王宝诚, 等. 零电压开关三电平Buck-Boost双向变换器[J]. 电工技术学报, 2018, 33(2): 293-300.
Sun Xiaofeng, Yuan Ye, Wang Baocheng, et al.Zero-voltage switching three-level Buck-Boost bidire-ctional converter[J]. Transactions of China Electro-technical Society, 2018, 33(2): 293-300.
[10] Tan Longcheng, Wu Bin, Rivera S, et al.Com-prehensive DC power balance management in high-power three-level DC-DC converter for electric vehicle fast charging[J]. IEEE Transactions on Power Electronics, 2016, 31(1): 89-100.
[11] Lu Sizhao, Mu Mingkai, Jiao Yang, et al.Coupled inductors in interleaved multiphase three-level DC-DC converter for high-power applications[J]. IEEE Transactions on Power Electronics, 2020, 31(1): 120-134.
[12] 苏冰, 王玉斌, 王璠, 等. 基于耦合电感的多相交错并联双向DC-DC变换器及其均流控制[J]. 电工技术学报, 2020, 35(20): 4337-4349.
Su Bing, Wang Yubin, Wang Fan, et al.Multi-phase interleaved bidirectional DC-DC converter with coupled inductors and current sharing control strategy[J]. Transactions of China Electrotechnical Society, 2020, 35(20): 4337-4349.
[13] Eirea G, Sanders Seth R.Phase current unbalance estimation in multiphase buck converters[J]. IEEE Transactions on Power Electronics, 2008, 23(1): 137-143.
[14] Gordillo J, Aguilar C.A simple sensorless current sharing technique for multiphase DC-DC buck converters[J]. IEEE Transactions on Power Elec-tronics, 2017, 32(5): 3480-3489.
[15] 李山, 赵瑜, 郭强, 等. 三相交错并联双向直流变换器无电流传感器均流控制[J]. 高电压技术, 2021, 47(3): 894-902.
Li Shan, Zhao Yu, Guo Qiang, et al.Sensorless current sharing control of three-phase interleaved bidirectional DC converter[J]. High Voltage Engin-eering, 2021, 47(3): 894-902.
[16] 张军明, 谢小高, 吴新科, 等. DC/DC模块有源均流技术研究[J]. 中国电机工程学报, 2005, 25(19): 31-36.
Zhang Junming, Xie Xiaogao, Wu Xinke, et al.Research on active current-sharing methods for DC/DC converters[J]. Proceedings of the CSEE, 2005, 25(19): 31-46.
[17] Wang Haojie, Han Minxiao, Han Renke, et al.A decentralized current-sharing controller endows fast transient response to parallel DC-DC converters[J]. IEEE Transactions on Power Electronics, 2018, 33(5): 4362-4372.
[18] Gordillo J, Aguilar C.A simple sensorless current sharing technique for multiphase DC-DC Buck con-verters[J]. IEEE Transactions on Power Electronics, 2017, 32(5): 3480-3489.
[19] Lee P W, Lee Y S, Cheng D K W, et al. Steady-state analysis of an interleaved Boost converter with coupled inductors[J]. IEEE Transactions on Industrial Electronics, 2000, 47(4): 787-795.
[20] Chae Y S, Song Y J, Park S K, et al.Digital current sharing method for parallel interleaved DC-DC converters using input ripple voltage[J]. IEEE Transa-ctions on Industrial Informatics, 2012, 8(3): 536-544.
[21] Singh R P, Khambadkone A M.Current sharing and sensing in N-paralleled converters using single current sensor[J]. IEEE Transactions on Industry Applications, 2010, 46(3): 4117-4125.
[22] Cho Y H, Koran A, Miwa H, et al.An active current reconstruction and balancing strategy with DC-link current sensing for a multi-phase coupled-inductor converter[J]. IEEE Transactions on Power Electronics, 2012, 27(4): 1697-1705.
[23] Han J H, Song J H.Phase current-balance control using DC-link current sensor for multiphase converters with discontinuous current mode considered[J]. IEEE Transactions on Industry Electronics, 2016, 63(7): 4020-4030.
[24] Liu Guanliang, Wang Mengqi, Zhou Weiyang, et al.A sensorless current balance control method for interleaved Boost converters based on output voltage ripple[J]. IEEE Transactions on Power Electronics, 2021, 36(6): 7138-7149.
[25] Huang W, Qahouq J A A. Input voltage ripple-based sensorless current sharing autotuning controller for multiphase DC-DC converters[J]. IEEE Transactions on Industry Applications, 2016, 52(5): 4117-4125.
[26] Jang Y, Jovanovic M M.Interleaved Boost converter with intrinsic voltage-doubler characteristic for universal-line PFC front end[J]. IEEE Transactions on Power Electronics, 2007, 22(4): 1394-1401.
[27] 赵玲玲, 吴云峰, 陈章勇, 等. 全占空比范围电容串接式交错并联Boost变换器均流策略研究[J]. 中国电机工程学报, 2020, 40(7): 2330-2339.
Zhao Lingling, Wu Yunfeng, Chen Zhangyong, et al.Study on current sharing strategy about series capacitor interleaved Boost converter in full-duty range[J]. Proceedings of the CSEE, 2020, 40(7): 2330-2339.
[28] Villarruel-Parra A, Forsyth A J.Enhanced average-value modeling of interleaved DC-DC converters using sampler decomposition[J]. IEEE Transactions on Power Electronics, 2017, 32(3): 2290-2299.
[29] Ho K M, Yeh C A, Lai Y S.Novel digital-controlled transition current-mode control and duty com-pensation techniques for interleaved power factor corrector[J]. IEEE Transactions on Power Electronics, 2010, 25(12): 3085-3094.
[30] 章治国, 徐堂意, 向林朋, 等. 多相交错并联自均流高增益DC/DC变换器及其控制策略[J]. 电机与控制学报, 2021, 25(1): 27-37.
Zhang Zhiguo, Xu Tangyi, Xiang Linpeng, et al.Multi-phase interleaved bidirectional DC-DC con-verter with coupled inductors and current sharing control strategy[J]. Electric Machines and Control, 2021, 25(1): 27-37.
[31] Jovanovic D P, Broadmeadow M A H, Taylor Y Y, et al. Decoupling of current balancing and reference tracking control in parallel interleaved converters[J]. IEEE Transactions on Power Electronics, 2020, 35(4): 4286-4295.
[32] Ruan Xinbo, Li Bin, Chen Qianhong, et al.Funda-mental considerations of three-level DC-DC con-verters: topologies, analyses, and control[J]. IEEE Transactions on Circuits and Systems, 2008, 11(55): 1255-1262.