单级式光伏并网逆变器的非线性控制

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Abstract Due to the nonlinear output characteristics of photovoltaic(PV) cells, this paper presents a comprehensive nonlinear control strategy apply to the single-stage grid-connected PV inverter. In this strategy, the active and reactive currents of the inverter are controlled decoupling exactly by nonlinear feedback linearization controller. The active disturbance rejection control is employed to the dc voltage regulator of the inverter, so the system mathematic modeling parameter error on the harmful effects of feedback linearization is compensated, and the control robust of the system is improved. With the active and reactive currents are exactly decoupling controlled and the voltage regulator has steady stability. A variable perturbation step maximum power point tracking(MPPT) technique, which based on the active current and the signal error of the dc voltage regulator, is designed to avoid miscalculation maximum power point of the PV array. The comprehensive nonlinear controller promotes effectively the control performance of the inverter by integrating the feedback linearization current loop, the active disturbance rejection voltage controller and variable perturbation step MPPT technique together. Simulation and experimental results show that the proposed strategy provides validity and feasibility.

Key words： Single-state grid-connected photovoltaic inverter nonlinear controller feedback linearization active disturbance rejection control the maximum power point tracking

Received: 04 September 2012 Published: 25 March 2014

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TM464

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	Yang Renzeng
	Zhang Guangxian

Cite this article:

Yang Renzeng,Zhang Guangxian. Single-Stage Grid-Connected PV Inverter with Nonlinear Controller[J]. Transactions of China Electrotechnical Society, 2013, 28(8): 204-211.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I8/204

[1] 张兴, 曹仁贤. 太阳能光伏并网发电及其逆变控制[M]. 北京: 机械工业出版社, 2011.
[2] 张承慧, 叶颖, 陈阿莲, 等. 基于输出电流控制的光伏并网逆变电源[J]. 电工技术学报, 2007, 22(8): 41-45.
Zhang Chenghui, Ye Ying, Chen Alian, et al. Research on grid-connected photovoltaic inverter based on output current control[J]. Transactions of China Electrotechnical Society, 2007, 22(8): 41-45.
[3] Casadei D, Grandi G, Rossi C. Single-phase single-stage photovoltaic generation system based on a ripple correlation control maximum power point tracking[J]. IEEE Transactions on Energy Conversion, 2006, 21(2): 562-568.
[4] Wu Libo, Zhao Zhengming, Liu Jianzheng. A single-stage three-phase grid-connected photovoltaic system with modified MPPT method and reactive power compensation[J]. IEEE Transactions on Energy Conversion, 2007, 22(4): 881-886.
[5] Kadri R, Gaubert J, Champenois G. An improved maximum power point tracking for photovoltaic grid-connected inverter based on voltage-oriented control[J]. IEEE Transactions on Industrial Electronics, 2011, 58(1): 66-75.
[6] Daizhan Cheng, Xiaoming Hu, Tielong Shen. Analysis and design of nonlinear control systems[M]. Beijing: Science Press&Springer, 2010.
[7] Changliang Xia, Qiang Geng, Xin Gu, et al. Input-output feedback linearization and speed control of a surface permanent-magnet synchronous wind generator with the Boost-chopper Converter[J]. IEEE Transactions on Industry Electronics, 2012, 59(9): 3489-3500.
[8] Dong Eok Kim, Dong Choon Lee. Feedback linearization control of three-phase ups inverter systems[J]. IEEE Transactions on Industrial Electronics, 2012, 57(3): 963-968.
[9] Shengyi Liu, Dougal R. Dynamic multiphysics model for solar array[J]. IEEE Transactions on Energy Conversion, 2002, 17(2): 285-294.
[10] Jingqing Han. From PID to active disturbance rejection control[J]. IEEE Transactions on Industrial Electronics, 2009, 56(3): 900-906.
[11] Esram T, Chapman P. Comparison of photovoltaic array maximum power point tracking techniques[J]. IEEE Transactions on Energy Conversion, 2007, 22(2): 439-449.