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| Control Strategy for Three-Phase Current Source Inverter Based on Optimal Given Value of DC Storage Inductance Current |
| Miao Yiru1, Liu Heping1, Hua Zexi2, Liu Jing3, Cheng Zhangge1 |
1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400044 China;
2. School of Electrical Engineering Southwest Jiaotong University Chengdu 611756 China;
3. State Grid Jiangsu Electric Power Maintenance Branch Company Nanjing 211102 China |
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Abstract In space vector modulation process for traditional three-phase current source inverter (CSI), DC storage inductance current is usually considered constant and charge-discharge process is ignored during a carrier period for traditional three-phase current source inverter, which causes storage inductance current discontinuous or continuous increasing. The DC-side topology of CSI was improved in this paper. Firstly, three working modes of storage inductance were analyzed in modulation process. The calculating method for optimal given value of storage inductance current was proposed under each working condition, and the modulation strategy was designed to guarantee storage inductance current constant for improved topology. Secondly, the math model of ac-side was derived in two-phase rotating reference frame. In addition, the closed-loop control system of voltage outer loop and current inner loop was designed. Finally, both the simulation and experimental results show the optimal given value of storage inductance current can meet the demand of ac-side and be maintained within a certain range. Besides, load current of CSI can accurately follow the given, system has good steady and dynamic performance. Thus, the correctness and feasibility of proposed modulation strategy and control method are proved.
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Received: 29 November 2017
Published: 29 January 2019
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[1] 张丽霞, 颜湘武, 康伟, 等. 基于空间电流矢量的动力蓄电池组测试系统变流技术[J]. 电工技术学报, 2010, 25(9): 122-128.
Zhang Lixia, Yan Xiangwu, Kang Wei, et al.Converting technology based on the current mode SVPWM on the power accumulator battery testing system[J]. Transactions of China Electrotechnical Society, 2010, 25(9): 122-128.
[2] 郭强, 刘和平, 彭东林, 等. 静止坐标系下电流型PWM整流器电流环控制策略研究及其参数设计[J]. 中国电机工程学报, 2014, 34(15): 2353-2361.
Guo Qiang, Liu Heping, Peng Donglin, et al.A novel control strategy and its parameter design of the current-loop in a stationary frame for current-source PWM rectifiers[J]. Proceedings of the CSEE, 2014, 34(15): 2353-2361.
[3] Wang Z, Chau K T, Yuwen B, et al.Power compensation and power quality improvement based on multiple channel current source converter fed HT SMES[J]. IEEE Transactions on Applied Super- conductivity, 2012, 22(3): 1-4.
[4] 苗轶如, 刘和平, 王华斌, 等. 单相电流源型逆变器储能电感电流优化调制及控制策略[J]. 电工技术学报, 2018, 33(6): 1227-1237.
Miao Yiru, Liu Heping, Wang Huabin, et al.The modulation and control strategy of storage inductance current for single-phase current source inverter[J]. Transactions of China Electrotechnical Society, 2018, 33(6): 1227-1237.
[5] 郭强, 刘和平, 彭东林, 等. 一种考虑电池自身特性的电流源型充电系统[J]. 电工技术学报, 2016, 31(16): 16-25.
Guo Qiang, Liu Heping, Peng Donglin, et al.A current-source charging system considering the characteristics of battery[J]. Transactions of China Electrotechnical Society, 2016, 31(16): 16-25.
[6] Garcia L S, Buiatti G M, Freitas L C D, et al. Dual transformerless single-stage current source inverter with energy management control strategy[J]. Transa- ctions on Power Electronic, 2013, 28(10): 4644-4655.
[7] 鲍建宇, 鲍卫兵, 李玉玲. 光伏并网三相电流型多电平变流器拓扑与控制[J]. 电工技术学报, 2016, 31(8): 70-75.
Bao Jianyu, Bao Weibing, Li Yuling.Topology and control of three-phase multilevel current-source converter for photovoltaic grid-connection[J]. Transactions of China Electrotechnical Society, 2016, 31(8): 70-75.
[8] 熊宇, 李玉玲, 廖鸿飞. 光伏并网电流源逆变器扰动电阻最大功率跟踪策略[J]. 电网技术, 2014, 38(12): 3300-3304.
Xiong Yu, Li Yuling, Liao Hongfei.A perturbing resistance maximum power point tracking strategy of current source inverter for grid-connected PV generation system[J]. Power System Technology, 2014, 38(12): 3300-3304.
[9] 李开鑫. 基于电流跟踪型SVPWM控制策略的SVG研究[J]. 电气技术, 2016, 17(2): 58-62, 76.
Li Kaixin.The study of SVG based on current- tracking SVPWM control strategy[J]. Electrical Engineering, 2016, 17(2): 58-62, 76.
[10] 秦海鸿, 张鑫, 朱梓悦, 等. 电流型PWM整流器叠流时间对网侧电流影响及其抑制方法[J]. 电工技术学报, 2016, 31(12): 142-152.
Qin Haihong, Zhang Xin, Zhu Ziyue, et al.Influence of overlap time on the AC grid current of current source PWM rectifier and restraining method[J]. Transactions of China Electrotechnical Society, 2016, 31(12): 142-152.
[11] Shang Jian, Li Yunwei.A space-vector modulation method for common-mode voltage reduction in current-source converters[J]. IEEE Transactions on Power Electronics, 2014, 29(1): 374-385.
[12] Lian Yujuan, Li Yunwei, Quan Zhongyi, et al.SVM strategies for common-mode current reduction in transformerless current source drives at low modulation index[J]. IEEE Transactions on Power Electronics, 2017, 32(2): 1312-1323.
[13] Li Yunwei, Wu Bin.Space vector sequence investigation and synchronization methods for active front-end rectifiers in high-power current-source drives[J]. IEEE Transactions on Industrial Elec- tronics, 2008, 55(3): 1022-1034.
[14] Cao Dong, Jiang Shuai, Yu Xianhao, et al.Low-cost semi-Z-source inverter for single-phase photovoltaic systems[J]. IEEE Transactions on Power Electronics, 2011, 26(12): 3514-3523.
[15] Fang Xupeng, Chen Zhiqiao, Wang Xuguang.Current fed quasi-Z-source inverter based adjustable speed drive system with bidirectional power flow[J]. IEEE Transactions on Applied Superconductivity, 2014, 24(5): 0600306.
[16] 郭强, 刘和平, 彭东林. 电动汽车用高性能电流型Tran-Z逆变器特性研究[J]. 电机与控制学报, 2015, 19(5): 74-80.
Guo Qiang, Liu Heping, Peng Donglin.Current source inverter fed electric vehicle motor drive system with high performance[J]. Electric Machine and Control, 2015, 19(5): 74-80.
[17] Su Guijia, Tang Lixin.Current source inverter based traction drive for EV battery charging appli- cations[C]//IEEE Vehicle Power and Propulsion Conference, Chicago, USA, 2011: 1-6.
[18] 陈亦文, 邱琰辉, 何永吉, 等. 储能电感电流限定单周期控制单相电流型PWM逆变器研究[J]. 电工技术学报, 2015, 30(14): 311-319.
Chen Yiwen, Qiu Yanhui, He Yongji, et al.Research on single-phase current mode PWM inverter of one-cycle control strategy with limited storage inductance current[J]. Transactions of China Electro- technical Society, 2015, 30(14): 311-319.
[19] Lee Hak-Jun, Jung Sung-Ho, Sul Seung-Ki.A current controller design for current source inverter-fed AC machine drive system[J]. IEEE Transactions on Power Electronic, 2013, 28(3): 1366-1380.
[20] 徐海亮, 廖自力, 贺益康. 基于旋转坐标变换的实系数与复系数PI调节器性能比较[J]. 电工技术学报, 2016, 31(6): 171-176.
Xu Hailiang, Liao Zili, He Yikang.Characteristic comparison of the real- and complex-coefficient PI regulators based on coordinate rotating transfor- mation[J]. Transactions of China Electrotechnical Society, 2016, 31(6): 171-176.
[21] 李正明, 高远, 潘天虹. 基于复合控制的有源电力滤波器电流控制策略[J]. 电力系统保护与控制, 2017, 45(15): 55-61.
Li Zhengming, Gao Yuan, Pan Tianhong.Com- pensation current control of APF based on compound control[J]. Power System Protection and Control, 2017, 45(15): 55-61.
[22] 郭强. 电流型PWM整流器控制策略及应用技术研究[D]. 重庆: 重庆大学, 2015.
[23] 张兴, 张崇巍. 整流器及其控制[M]. 北京: 机械工业出版社, 2012. |
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2019, Vol. 34 
