Voltage Drop Suppression of Z-Source Inverter Using Space Vector PWM Method
He Yuyao1, Zhang Liumingyang1, Chen Jinping2
1. School of Marine Science and Technology Northwestern Polytechnical University Xi’an 710072 China; 2. School of Electronic and Control Engineering Chang’an University Xi’an 710064 China;
Abstract：Current discontinuity flowing through the diode in Z-source network will lead to DC link voltage drop. The expression of the DC bus voltage drop is derived, and then a new space vector PWM (SVPWM) control method is proposed. Based on the shoot-through state in the Z-source network, the new method avoids the abnormal working state of the circuit by inserting the shoot-through states into the control period. The method can maintain the stability of the DC bus voltage without changing the hardware circuit, and can also improve the quality of output waveforms. Under full load and light load conditions, the effects of the new SVPWM method and the traditional SVPWM method on DC bus voltages in the Z-source network inverter are analyzed. Simulations and experiments have verified the effectiveness and correctness of the new method.
贺昱曜, 张柳明扬, 陈金平. 抑制Z-源逆变器母线电压跌落的空间矢量脉宽调制方法[J]. 电工技术学报, 2017, 32(2): 228-237.
He Yuyao, Zhang Liumingyang, Chen Jinping. Voltage Drop Suppression of Z-Source Inverter Using Space Vector PWM Method. Transactions of China Electrotechnical Society, 2017, 32(2): 228-237.
[1] Peng F Z. Z-source inverter[J]. IEEE Transactions on Industry Application, 2003, 39(2): 504-516. [2] Siwakoti Y P, Peng F, Blaabjerg F, et al. Impedance source networks for electric power conversion part-I: a topological review[J]. IEEE Transactions on Power Electronics, 2015, 30(2): 1. [3] Sreeprathab N R, Joseph X F. A survey on Z-source inverter[C]//IEEE International Conference on Control, Instrumentation, Communication and Computational Technologies (ICCICCT), 2014: 1406-1410. [4] 丁新平, 张承慧, 薛必翠, 等. 具有大范围升-降压功能的新型单级逆变电路[J]. 电工技术学报, 2014, 29(10): 73-80. Ding Xinping, Zhang Chenghui, Xue Bicui, et al. A novel high voltage ratio single-stage inverter with Buck-Boost ability[J]. Transactions of China Electro- technical Society, 2014, 29(10): 73-80. [5] Battiston A, Miliani E H, Martin J P, et al. A control strategy for electric traction systems using a PM- motor fed by a bidirectional-source inverter[J]. IEEE Transactions on Vehicular Technology, 2014, 63(9): 4178-4191. [6] Karaman E, Farasat M, Trzynadlowski A M. Indirect matrix converters as generator-grid interfaces for wind energy systems[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2014, 2(4): 776-783. [7] Roomi M M, Maswood A I. Investigation of Z-source inverter for fuel cell system in a zero energy building[C]//IEEE 3rd International Conference on the Developments in Renewable Energy Technology (ICDRET), 2014: 1-5. [8] Tang Y, Xie S, Ding J. Pulse width modulation of Z-source inverters with minimum inductor current ripple[J]. IEEE Transactions on Industrial Electronics, 2014, 61(1): 98-106. [9] Chiang Loh, Mahinda V. Transient modeling and analysis of pulse-width modulated Z-source inver- ter[J]. IEEE Transactions on Power Electronics, 2007, 22(2): 498-507. [10] 赵建伍, 黄文新, 周玉斐. 带抽头电感的准Z源逆变器建模与特性分析[J]. 电工技术学报, 2014, 29(6): 7-16. Zhao Jianwu, Huang Wenxin, Zhou Yufei. Modeling and analysis of tapped-inductor quasi-Z-source inver- ter[J]. Transactions of China Electrotechnical Society, 2014, 29(6): 7-16. [11] 侯世英, 黄哲, 肖旭. 改进型Z源并网逆变器[J]. 电机与控制学报, 2012, 16(12): 47-53. Hou Shiying, Huang Zhe, Xiao Xu. The improved Z- source grid-connected inverter[J]. Electric Machines and Control, 2012, 16(12): 47-53. [12] Tang Yu, Xie Shaojun, Zhang Chaohua. An improved Z-source inverter[J]. IEEE Transactions on Power Electronics, 2011, 26(12): 3865-3868. [13] 邓凯, 梅军, 郑建勇. 改进型开关电感准Z源逆变器[J]. 电网技术, 2013, 37(11): 3254-3261. Deng Kai, Mei Jun, Zheng Jianyong. Improved switched-inductor quasi-Z source inverter[J]. Power System Technology, 2013, 37(11): 3254-3261. [14] 黄瑞哲, 陈道炼, 许志龙. 新颖的单相电压型准Z源逆变器[J]. 电工技术学报, 2015, 30(16): 33-41. Huang Ruizhe, Chen Daolian, Xu Zhilong. A novel single phase voltage mode quasi-Z-source inverter[J]. Transactions of China Electrotechnical Society, 2015, 30(16): 33-41. [15] Shen M, Peng F Z. Operation modes and charac- teristics of the Z-source inverter with small inductance or low power factor[J]. IEEE Transactions on Industrial Electronics, 2008, 55(1): 89-96. [16] Yang L, Qiu D, Zhang B, et al. High-performance quasi-Z-source inverter with low capacitor voltage stress and small inductance[J]. IET Power Electronics, 2015, 8(6): 1061-1067. [17] 高志刚, 樊辉, 徐少华, 等. 改进型双向Z源储能变流器拓扑结构及空间电压矢量调制策略[J]. 高电压技术, 2015, 41(10): 3240-3248. Gao Zhigang, Fan Hui, Xu Shaohua, et al. Topology and SVPWM modulation strategy of the improved bi-directional Z-source converter for energy storage[J]. High Voltage Engineering, 2015, 41(10): 3240- 3248. [18] Banaei M, Ahrabi R R, Elmi M. Single-phase safe commutation trans-Z-source AC-AC converter[J]. IET Power Electronics, 2015, 8(2): 190-201.
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