Passivity-Based Control Strategy of Quasi Z-Source Three-Level Grid-Connected Inverter

被引：0
|
作者：
Cheng Q. [1 ]
Jiang C. [1 ]
Shen L. [1 ]
Cheng Y. [2 ]
机构：
[1] Shanghai Key Laboratory Power Station Automation Technology Laboratory, Shanghai University of Electric Power, Shanghai
[2] North Power Supply Branch, Shanghai Electric Power Company, Shanghai
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2020年 / 35卷 / 20期
关键词：
E-L model; Passivity-based control; Port controlled hamiltonian with dissipation model; Quasi-Z source inverter; Three-level inverter;
D O I：
10.19595/j.cnki.1000-6753.tces.191173
中图分类号：
学科分类号：
摘要：
In this paper, passivity-based control (PBC) is introduced into a new quasi-Z source three-level grid-connected inverter. This method can achieve good grid-connected control without linearizing the inverter system. Firstly, the working principle of the new inverter topology is discussed, the overall mathematical model of the new inverter is derived, and the passive Euler-Lagrange (EL) equation form is given. Then, it is verified that the inverter system has strict passive characteristics. By adopting the appropriate damping injection and control rate, the inverter system is accelerated to reach the desired point, the PBC law of decoupling grid-connected current is obtained, and the PBC system of the new inverter is designed. This system can drive the switch action of the new inverter in combination with SPWM modulation algorithm. Finally, the results on the Matlab/Simulink software platform and hardware platform show that the PBC strategy based on EL model has good dynamic characteristics and strong robustness. © 2020, Electrical Technology Press Co. Ltd. All right reserved.
引用
收藏
页码：4361 / 4372
页数：11
相关论文
共 20 条
  • [1] Rajakaruna S., Steady-state analysis and designing impedance network of Z-source inverters, IEEE Transactions on Industrial Electronics, 57, 1, pp. 2483-2491, (2010)
  • [2] Zeng Zheng, Yang Huan, Zhao Rongxiang, Et al., Overview of multi-functional grid-connected inver-ters, Electric Power Automation Equipment, 32, 8, pp. 5-15, (2012)
  • [3] Peng Fangzheng, Z-source inverter, IEEE Transa-ctions on Industry Applications, 39, 2, pp. 504-510, (2003)
  • [4] Tang Yu, Xie Shaojun, Zhang Chaohua, Improved Z-source inverter, Proceedings of the CSEE, 29, 30, pp. 28-34, (2009)
  • [5] Tang Yu, Xie Shaojun, Zhang Chaohua, Improved Z-source inverter with reduced Z-source capacitor voltage stress and soft-start capability, IEEE Transactions on Power Electronics, 24, 2, pp. 409-415, (2009)
  • [6] Cai Chunwei, Qu Yanbin, Sheng Kuang, Et al., Enhanced Z-source inverter, Proceedings of the CSEE, 31, pp. 259-266, (2011)
  • [7] Zhou Yufei, Huang Wenxin, Zhao Jianwu, Et al., A high gain Z-source inverter, Transactions of China Electrotechnical Society, 28, 9, pp. 239-246, (2013)
  • [8] Hou Shiying, Xiao Xu, Zhang Chuang, Et al., Improved Z source inverter, Electric Power Automation Equipment, 31, 8, pp. 24-28, (2011)
  • [9] Xu Cong, Cheng Qiming, Li Ming, Et al., A comparative simulation study on Z-source inverter and its various improvement topllogies, Power System Technology, 38, 10, pp. 2926-2931, (2014)
  • [10] Wang Jiuhe, Huang Lipei, Yang Xiuyuan, Power control of three-phase Boost-type PWM rectifier based on passivity, Proceedings of the CSEE, 28, 21, pp. 20-25, (2008)
12