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| Simplified Analysis Model and Optimal Control Strategy of TripleActiveBridge Converter |
| Liu Bei1, Shuai Zhikang1, Xiao Fan1, Tu Chunming1, Zhou Da2 |
1. National Engineering Research Centerfor Electricity Transformation and Control Hunan University Changsha 410082 China;
2. Marketing Service CenterState Grid Jiangsu Electric Power Co. Ltd Nanjing 210019 China |
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Abstract Under the traditional single-phase-shift (SPS) strategy, there is a large backflow power in the triple-active-bridge (TAB) converter, the backflow power increases the RMS currentand the loss of the converter. Multi-phase-shift (MPS) strategy can improve the control flexibility and reduce the backflow power, but the analysis process and the phase shift angle selection method are extremely complicated. To solve this problem, this paper proposed a simplified analysis model based on multiple phase shifts and an optimized control strategy. Firstly, this paper established the equivalent Fourier series model of TAB converter, derived the unified expression form of TAB converter under MPS control strategy, and proposed a simplified analysis model of TAB converter, which reduces the difficulty of analysis and calculation of TAB converter. On this basis, an optimized control strategy based on reactive power is proposed, which can reduce the RMS currentand the loss of TAB converter. Finally, simulation and experiment verified the effectiveness of the proposed control strategy.
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Received: 23 December 2019
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[1] 宋强, 赵彪, 刘文华, 等. 智能直流配电网研究综述[J]. 中国电机工程学报, 2013, 33(25): 9-19.
Song Qiang, Zhao Biao, Liu Wenhua, et al.An overview of research on smart DC distribution power network[J]. Proceedings of the CSEE, 2013, 33(25): 9-19.
[2] 赵彪, 赵宇明, 王一振, 等. 基于柔性中压直流配电的能源互联网系统[J]. 中国电机工程学报, 2015, 35(19):4843-4851.
Zhao Biao, Zhao Yuming, Wang Yizhen, et al.Energy internet based on flexible medium-voltage DC distribution[J]. Proceedings of the CSEE, 2015, 35(19):4843-4851.
[3] 李周, 李亚洲, 陆于平, 等. 多端柔性直流电网主动功率平衡协调控制策略[J]. 电力系统自动化, 2019, 43(17): 117-124.
Li Zhou, Li Yazhou, Lu Yuping, et al.Active power balance oriented coordinating control strategy for VSC-MTDC system[J]. Automation of Electric Power Systems, 2019, 43(17): 117-124.
[4] Zhang Xing, Wang Mingda, Zhao Tao, et al.Topological comparison and analysis of medium-voltage and high-power direct-linked PV inverter[J]. CES Transactions on Electrical Machines and Systems, 2019, 3(4): 327-334.
[5] Huang A Q, Crow M L, Heydt G T, et al.The future renewable electric energy delivery and management (FREEDM) system: the energy internet[J]. Proceedings of the IEEE, 2011, 99(1):133-148.
[6] 马骏超, 江全元, 余鹏, 等. 直流配电网能量优化控制技术综述[J]. 电力系统自动化, 2013, 37(24): 89-96.
Ma Junchao, Jiang Quanyuan, Yu Peng, et al.Survey on energe optimized control technology in DC distribution network[J]. Automation of Electric Power Systems, 2013, 37(24): 89-96.
[7] 吴济东, 汪可友, 黄鑫, 等. 孤立直流微电网多DC-DC变换器分布式协调控制策略[J]. 电力系统保护与控制, 2020, 48(11): 76-83.
Wu Jidong, Wang Keyou, Huang Xin, et al.Distributed coordinated control scheme of parallel DC-DC converters in isolated DC microgrids[J]. Power System Protection and Control, 2020, 48(11): 76-83.
[8] Wu Hongfei, Lei Zhu, Fan Yang.Three-port-converter-based single-phase bidirectional AC-DC converter with reduced power processing stages and improved overall efficiency[J]. IEEE Transactions on Power Electronics, 2018, 33(12): 10021-10026.
[9] Wang Zhan, Li Hui.An integrated three-port bidirectional DC-DC converter for PV application on a DC distribution system[J]. IEEE Transactions on Power Electronics, 2012, 28(10): 4612-4624.
[10] Fan Haifeng, Li Hui.High-frequency transformer isolated bidirectional DC-DC converter modules with high efficiency over wide load range for 20 kVA solid-state transformer[J]. IEEE Transactions on Power Electronics, 2011, 26(12): 3599-3608.
[11] 李微, 周雪松, 马幼捷, 等. 三端口直流微网母线电压控制器及多目标控制[J].电工技术学报, 2019, 34(1): 92-102.
Li Wei, Zhou Xuesong, Ma Youjie, et al.Three-port DC microgrid bus voltage controller and multi-objective control[J]. Transactions of China Electrotechnical Society, 2019, 34(1):92-102.
[12] Bhattacharjee A K, Kutkut N, Batarseh, I.Review of multiport converters for solar and energy storage integration[J]. IEEE Transactions on Power Electronics, 2018, 34(2): 1431-1445.
[13] 余雪萍, 涂春鸣, 肖凡, 等. 三端口隔离DC-DC变换器的暂态直流偏置机理及抑制策略[J]. 电工技术学报, 2020, 35(9): 1962-1972.
Yu Xueping, Tu Chunming, Xiao Fan, et al.Transient DC bias mechanism and suppression strategy of the three-port isolated DC-DC converter[J]. Transactions of China Electrotechnical Society, 2020, 35(9): 1962-1972.
[14] Irfan M S, Ahmed A, Park J H.Power-decoupling of a multiport isolated converter for an electrolytic-capacitorless multilevel inverter[J]. IEEE Transactions on Power Electronics, 2017, 33(8): 6656-6671.
[15] 年珩, 叶余桦. 三端口隔离双向DC-DC变换器模型预测控制技术[J]. 电工技术学报, 2020, 35(16): 3478-3488.
Nian Heng, Ye Yuhua.Model predictive control of three-port isolated bidirectional DC-DC converter[J]. Transactions of China Electrotechnical Society, 2020, 35(16): 3478-3488.
[16] 刘飞龙, 张涵, 孙孝峰, 等. 双有源桥四绕组变压器双向DC-DC变换器[J]. 电工技术学报, 2019, 34(20): 4272-4282.
Liu Feilong, Zhang Han, Sun Xiaofeng, et al.Improved dual active bridge bidirectional DC-DC converter with four-winding transformer structure[J]. Transactions of China Electrotechnical Society, 2019, 34(20): 4272-4282.
[17] 曾进辉, 孙志峰, 雷敏, 等. 双重移相控制的双主动全桥变换器全局电流应力分析及优化控制策略[J].电工技术学报, 2019, 34(12): 2507-2518.
Zeng Jinhui, Sun Zhifeng, Lei Min, et al.Global current stress analysis and optimal control strategy of dual-active full bridge converter based on dual phase shift control[J]. Transactions of China Electrote-chnical Society, 2019, 34(12): 2507-2518.
[18] 魏腾飞, 王晓兰, 李晓晓. 双向直流隔离变换器功率回流的分析及消除[J]. 电机与控制学报, 2019, 23(11): 100-108.
Wei Tengfei, Wang Xiaolan, Li Xiaoxiao.Analysis and elimination backflow power in bidirectional DC-DC isolation converter[J]. Electric Machines and Control, 2019, 23(11): 100-108.
[19] 杨超, 许海平, 张祖之, 等. PWM与移相结合控制下的混合三电平隔离型双向DC-DC最小回流功率控制研究[J]. 电工技术学报, 2019, 34(15): 3186-3197.
Yang Chao, Xu Haiping, Zhang Zuzhi, et al.Minimum backflow power control of the hybrid three level isolated bi-directional DC-DC converters based on PWM-phase-shifting control[J]. Transactions of China Electrotechnical Society, 2019, 34(15): 3186-3197.
[20] 李婧, 袁立强, 谷庆, 等.一种基于损耗模型的双有源桥DC-DC变换器效率优化方法[J].电工技术学报, 2017,32(14):66-76.
Li Jing, Yuan Liqiang, Gu Qing, et al.An efficiency optimization method in dual active bridge DC-DC converter based on loss model[J]. Transactions of China Electrotechnical Society,2017,32(14): 66-76.
[21] Zhao Biao, Song Qiang, Liu Wenhua, et al.Universal high-frequency-link characterization and practical fundamental-optimal strategy for dual-active-bridge DC-DC converter under PWM plus phase-shift control[J]. IEEE Transactions on Power Electronics, 2015, 30(12): 6488-6494.
[22] 沙广林. 电力电子变压器中双有源桥DC-DC变换器的研究[D]. 北京:中国矿业大学, 2016.
[23] 王政, 储凯, 张兵, 等. 移相占空比控制的三端口双向直流变换器[J]. 电机与控制学报, 2015, 19(7): 81-87.
Wang Zheng, Chu Kai, Zhang Bing, et al.Three-port bidirectional DC-DC converter with duty cycle and phase-shifting control[J]. Electric Machines & Control, 2015, 19(7): 81-87.
[24] 赵彪, 宋强. 双主动全桥DC-DC变换器的理论和应用技术[M]. 北京: 科学出版社, 2017. |
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2021, Vol. 36 
