Abstract:Because of the high input voltage and high rated power, the DC-DC converter in the auxiliary power supply system of subway is not easy to match the appropriate switching devices. In order to reduce the voltage and current stress of switching devices, Input-series Output-parallel (ISOP) structure is used. In this paper, the principle of voltage sharing and current sharing of ISOP converter is analyzed. The mathematical model and the controller of the converter is derived. Then the common duty control mode is studied, which verifies the rationality of the controller design. In the PSIM simulation, it is verified that the interlace control method can reduce the output current ripple and the filter capacitance to some extent. In order to reliably evaluate the performance and life of the system, an improved interlace control method to control the output current ripple within 5% is proposed. Simulation by Matlab establishes the effectiveness of this approach. Finally, the test of single-module rated-power at 40kW condition of ISOP system is established, which verifies the system output stability and dynamic and static performance. On this basis, the hardware experimental platform of ISOP system was built, and the debugging of low-power experiment was carried out, which confirmed the correctness of the equalization current sharing control method.
黄先进, 赵鹃, 游小杰. 一种基于输入串联输出并联移相全桥变换器的改进交错控制方法[J]. 电工技术学报, 2020, 35(zk1): 81-90.
Huang Xianjin, Zhao Juan, You Xiaojie. An Improved Interlace Control Method Based on Input Series Output Parallel Phase-Shifted Full-Bridge Converter. Transactions of China Electrotechnical Society, 2020, 35(zk1): 81-90.
[1] 夏兵. 地铁列车辅助供电系统介绍[J]. 科技与企业, 2016(4): 207. [2] 牛伟亮, 李超, 王磊, 等. 面向地铁车辆的辅助逆变系统设计[J]. 电子设计工程, 2015, 23(2): 94-97. Niu Weiliang, Li Chao, Wang Lei, et al.Design of auxiliary inverter system for the subway vehicle[J]. Electronic Design Engineering, 2015, 23(2): 94-97. [3] 王雪松, 赵争鸣, 袁立强, 等. 应用于大容量变换器的IGBT并联技术[J]. 电工技术学报, 2012, 27(10): 155-162. Wang Xuesong, Zhao Zhengming, Yuan Liqiang, et al.Parallel technique for IGBT modules applied in high-power converter[J]. Transactions of China Electrotechnical Society, 2012, 27(10): 155-162. [4] Sha Deshang, Xu Guo, Liao Xiaozhong.Control strategy for input-series-output-series high-frequency AC-link inverters[J]. IEEE Transactions on Power Electronics, 2013, 28(11): 52-83. [5] 顾亦磊, 吕征宇, 钱照明. 三电平LLC谐振型DC/DC变换器的分析和设计[J]. 电力系统自动化, 2004, 28(16): 67-71. Gu Yilei, Lü Zhengyu, Qian Zhaoming.Analysis and design of a three level LLC resonant DC/DC converter[J]. Automation of Electric Power Systems, 2004, 28(16): 67-71. [6] 李浩昱, 李振伟, 赵雷, 等. 宽输入LLC谐振变换器多电平控制策略[J]. 电工技术学报, 2017, 32(4): 48-57. Li Haowei, Li Zhenwei, Zhao Lei, et al.Multi-level control strategy of wide input LLC resonant converter[J]. Transactions of China Electrotechnical Society, 2017, 32(4): 48-57. [7] 王暄, 王广柱, 孙晓伟, 等. 具有宽范围输出电压的三电平半桥LLC谐振变换器控制策略[J]. 电工技术学报, 2017, 32(21): 24-33. Wang Xuan, Wang Guangzhu, Sun Xiaowei, et al.Research on control strategy of three-level half-bridge LLC resonant converter with wide output voltage range[J]. Transactions of China Electrotechnical Society, 2017, 32(21): 24-33. [8] 石巍, 方太勋, 谢晔源, 等. CLLC型模块化输入串联输出并联直流变压器[J]. 南方电网技术, 2017, 11(4): 7-13, 22. Shi Wei, Fang Taixun, Xie Yeyuan, et al.CLLC type modular input-series output-parallel DC transformer[J]. China Southern Power Grid Technology, 2017, 11(4): 7-13, 22. [9] 张先进. 输入串联输出并联直流变压器控制研究[J]. 电力电子技术, 2011, 45(2): 91-93. Zhang Xianjin.Research on a control method of input series-output parallel DC/DC transformer[J]. Power Electronics, 2011, 45(2): 91-93. [10] 韩冰, 杨东军, 迟久鸣, 等. 基于输入串联输出并联的列车充电机研究[J]. 电力电子技术, 2017, 51(11): 111-113. Han Bing, Yang Dongjun, Chi Jiuming, et al.Research on input series output parallel train battery charger[J]. Power Electronics, 2017, 51(11): 111-113. [11] 程璐璐. 输入串联输出并联组合变换器控制策略的研究[D]. 南京: 南京航空航天大学, 2007. [12] Raja Ayyanar, Ramesh Giri, Ned Mohan.Active input-voltage and load-current sharing in input-series and output-parallel connected modular DC-DC con- verters using dynamic input-voltage reference scheme[J]. IEEE Transactions on Power Electronics, 2004, 19(6): 1462-1473. [13] Ramesh Giri, Vijay Choudhary, Raja Ayyanar, et al.Common-duty-ratio control of input-series connected modular DC-DC converters with active input voltage and load-current sharing[J]. IEEE Transactions on Industry Applications, 2006, 42(4): 1101. [14] 石健将, 罗劼, 何湘宁. 相同移相角控制的串-并型移相全桥组合变换器[J]. 中国电机工程学报, 2012, 32(21): 23-30. Shi Jianjiang, Luo Wei, He Xiangning.Input-series output-parallel connected phase-shifted full bridge converter with common-phase-shift control[J]. Pro- ceedings of the CSEE, 2012, 32(21): 23-30. [15] Ruan Xinbo, Chen Wu, Cheng Lulu, et al.Control strategy for input-series-output-parallel converters[J]. IEEE Transactions on Industrial Electronics, 2009, 56(4): 1174-1185. [16] 牛金红, 马学军, 康勇. ISOP型直流变换器输入端电容均压问题研究[J]. 电力电子技术, 2006, 40(4): 59-61. Niu Jinhong, Ma Xuejun, Kang Yong.Study of input series output parallel connected DC converter with voltage sharing between input capagtior[J]. Power Electronics, 2006, 40(4): 59-61. [17] 陈武, 阮新波, 颜红. DC/DC多模块串并联组合系统控制策略[J]. 电工技术学报, 2009, 24(7): 93-102. Chen Wu, Ruan Xinbo, Yan Hong.Control strategy for DC/DC multiple modules series-parallel combined systems[J]. Transactions of China Electrotechnical Society, 2009, 24(7): 93-102. [18] 陈杰, 刁利军, 林文立, 等. 输入串联输出并联全桥变换器的无电流传感器均压均流控制策略[J]. 电工技术学报, 2012, 27(6): 126-130. Chen Jie, Diao Lijun, Lin Wenli, et al.Voltage sharing and sensor-less current sharing control strategy of ISOP full-bridge converter[J]. Transactions of China Electrotechnical Society, 2012, 27(6): 126-130. [19] 宗文博, 陈树君, 卢振洋, 等. 一种ISOP结构弧焊电源主电路的研究[J]. 电焊机, 2016, 46(10): 61-65. Zong Wenbo, Chen Shujun, Lu Zhenyang, et al.Research on an arc welding power source with a structure of ISOP main circuit[J]. Electric Welding Machine, 2016, 46(10): 61-65. [20] Li Guoxin, Ma Caoyuan, Zhao Chen, et al.Analysis on anti-grid voltage disturbance capacity of phase shifted full-bridge ZVS DC/DC converter[C]// International Conference on E-Product E-Service and E-Entertainment, Henan, China, 2010: 1-4. [21] 刘丁. 自动控制理论[M]. 北京: 机械工业出版社, 2011.