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| Dynamic Dormancy Control Strategy of Three-Phase Staggered Parallel Bidirectional DC-DC Converter |
| Wang Chaoqiang1, Cao Taiqiang1, Guo Xiaoying2, Han Heguang3 |
1. School of Electrical Engineering and Electronic Information Xihua University Chengdu 610039 China;
2. School of Intelligent Manufacturing Panzhihua University Panzhihua 617000 China;
3. Sichuan Aviation Electrical Micro Energy Co. Ltd Chengdu 610052 China |
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Abstract In the energy storage system of aircraft ground static variable power supply,the three-phase staggered parallel bidirectional DC-DC converter owns higher rated power and DC bus voltage, which has high matching requirements for switching devices. A dynamic sleeping control strategy is proposed to tackle the shortened working life of the converter when the switching device is in the state of breaking for a long time. In this paper, the working principle of the three-phase alternating parallel bidirectional DC-DC converter is analyzed in detail, the mathematical model is set up to add the current loop dynamic dormancy control links, develop control strategy of dynamic dormancy double closed-loop.Compared with the traditional control strategy of double closed-loop, the switching devices are in dynamic dormant state, which effectively extend the working life of the switching devices and the converter. Finally, a Matlab/Simulink simulation platform and a 30kW experimental prototype are built to verify the theoretical analysis results. In the experiment, all switching devices of the converter realized dynamic sleep and the switching times under light load were only 1/3 of the traditional double closed-loop control strategy, and the working life of switching devices was increased by 200%. Under the half-load condition, the switching times are 2/3 of the traditional double-closed-loop control strategy, and its working life is increased by 50%. The switching times under full load are the same as the traditional double closed loop control strategy.
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Received: 30 January 2020
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[1] 梁亮, 刘南. 交错并联双向DC/DC变换器小信号模型分析[J]. 控制工程, 2014, 21(6): 886-890.
Liang Liang, Liu Nan.Small-signal modeling and analysis of interleaved bidirectional DC/DC converter[J]. Control Engineering of China, 2014, 21(6): 886-890.
[2] 王建华, 张方华, 龚春英. 基于发展的PWM Switch模型的Buck/Boost双向直直变换器建模及分析[J]. 南京航空航天大学学报, 2014, 46(1): 92-100.
Wang Jianhua, Zhang Fanghua, Gong Chunying.Modeling and analysis of Buck/Boost bidirectional DC/DC converter with developed PWM switch model[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2014, 46(1): 92-100.
[3] 李宁宁, 梁爽, 纪延超, 等. 基于LCL滤波器的蓄电池双向DC/DC变换器的研究[J]. 电机与控制学报, 2015, 19(7): 8-13.
Li Ningning, Liang Shuang, Ji Yanchao, et al.Research on battery DC/DC bidirectional converter using LCL filter[J]. Electric Machines and Control, 2015, 19(7): 8-13.
[4] Ahmadi B, Barati F, Karimi C.A variable current- limit control scheme for a bi-directional converter used in ultracapacitor applications[J]. Electric Power Components and Systems, 2018, 46(3): 278-289.
[5] Yang S Y, Bryant A, Mawby P, et al.An industry-based survey of reliability in power electronic converters[J]. IEEE Transactions on Industry Applications, 2011, 47(3): 1441-1451.
[6] Ji B,Picket V,Cao WP,et al.In situ diagnostics and prognostics of wire bonding faults in IGBT modules for electric vehicle drives[J].IEEE Transactions on Power Electronic, 2013, 28(12): 5568-5577.
[7] ???, ???, ???, et al. 3kW bi-directional EV charger with V2G and V2H function[J]. The Transactions of the Korean Institute of Power Electronics, 2015, 20(1): 31-37.
[8] Ma K, He N, Liserre M,et al.Frequency-domain thermal modeling and characterization of power semiconductor devices[J].IEEE Transactions on Power Electronics, 2016, 31(10): 7183-7193.
[9] Du Xiong, Li Gaoxian, Li Tengfei, Sun Pengju, et al.A hybrid modulation method for lifetime extension of power semiconductors in wind power converters[C]//Proceedings of the IEEE Applied Power Electronics Conference and Exposition(APEC), Charlotte, NC, USA, 2015: 2565-2570.
[10] 杜雄, 李高显, 李腾飞, 等. 一种用于提高风电变流器中功率器件寿命的混合空间矢量调制方法[J]. 中国电机工程学报, 2015, 35(19): 5003-5012.
Du Xiong, Li Gaoxian, Li Tengfei, et al.A hybrid modulation method for improving the lifetime of power modules in the wind power converter[J]. Proceedings of the CSEE, 2015, 35(19): 5003-5012.
[11] 冯兴田, 万满满, 韩立博, 等. 基于储能的双向DC/DC变换器电源系统控制策略[J]. 电力电子技术, 2017, 51(7): 8-10, 19.
Feng Xingtian, Wan Manman, Han Libo, et al.Control strategy for bidirectional DC/DC converter source system based on energy storage[J]. Power Electronics, 2017, 51(7): 8-10, 19.
[12] 周雒维, 张益, 王博. 一种基于调节缓冲电容的IGBT热管理方法[J]. 电机与控制学报, 2019, 23(4): 28-36.
Zhou Luowei, Zhang Yi, Wang Bo.IGBT thermal management method based on snubber capacitor[J]. Electric Machines and Control, 2019, 23(4): 28-36.
[13] Wang Bo, Zhou Luowei, Zhang Yi.Active junction temperature control of IGBT based on adjusting the turn-off trajectory[J]. IEEE Transactions on Power Electronics, 2018, 33(7): 5811-5823.
[14] 肖智明, 陈启宏, 张立炎. 电动汽车双向DC-DC变换器约束模型预测控制研究[J].电工技术学报, 2018, 33(增刊2): 489-498.
Xiao Zhiming, Chen Qihong, Zhang Liyan.Constrained model predictive control for bidirectional DC-DC converter of electric vehicles[J]. Transactions of China Electrotechnical Society, 2018, 33(S2): 489-498.
[15] 肖朝霞, 李怀民, 朱天丽, 等. 提高船舶微电网艏侧推进器运行能效的控制策略[J]. 电工技术学报, 2018, 33(增刊2): 519-526.
Xiao Zhaoxia, Li Huaimin, Zhu Tianli, et al.Control strategy for improving operation energy efficiency of bow thruster in shipboard microgrid[J]. Transactions of China Electrotechnical Society, 2018, 33(S2): 519-526.
[16] 杨惠. 光伏储能双向DC-DC变换器控制策略研究[D]. 西安: 西安理工大学, 2018.
[17] 姚芳, 胡洋, 李铮, 等. 基于结温监测的风电IGBT热安全性和寿命耗损研究[J].电工技术学报, 2018, 33(9): 2024-2033.
Yao Fang, Hu Yang, Li Zheng, et al.Study on Thermal safety and lifetime consumption of IGBT in wind power converters based on junction temperature monitoring[J]. Transactions of China Electrotech- nical Society, 2018, 33(9): 2024-2033.
[18] 赖伟. 计及低强度热载荷疲劳累积效应的IGBT功率器件寿命模型研究[D]. 重庆: 重庆大学, 2016. |
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2020, Vol. 35 
