Abstract：Based on the output characteristics of the photovoltaic (PV) cells, this paper analyzes the dynamic control process of PV simulator theoretically. Due to concluding that due to the nonlinear output characteristics, and it is difficult to simulate the whole PV I-U output curve by simply using pure voltage control or current control methods. Therefore a hybrid control strategy for the PV simulator is presented. By dividing the PV output curve into three segments, the proposed strategy implements hybrid current or voltage control via sampling, calculation and PWM output using a TMS320LF2407 DSP based control unit. A 2kW PV simulator prototype was built up in the lab, which could simulate the PV output characteristics under different irradiation, temperature and loads. The effectiveness and dynamic performance of the proposed hybrid control strategy was validated by tests using a grid-connected inverter and a variable resistive load respectively.
李媛. 基于混合控制策略的光伏电池模拟器[J]. 电工技术学报, 2012, 27(11): 197-202.
Li Yuan. A Hybrid Control Strategy for Photovoltaic Simulator. Transactions of China Electrotechnical Society, 2012, 27(11): 197-202.
[1] Midtgard O M. A simple photovoltaic simulator for testing of power electronics[C]. 2007 European Conference on Power Electronics and Applications, 2007: 1-10. [2] Nagayoshi H. I-V curve simulation by multi-module simulator using I-V magnifier circuit[J]. Solar Energy Materials & Solar Cells, 2004, 82(5): 159-167. [3] 沈玉. 跟随样品太阳电池的光伏阵列模拟器[J]. 太阳能学报, 1997, 18(4): 448-451. [4] 苏建徽, 余世杰, 赵为, 等. 数字式太阳电池阵列模拟器[J]. 太阳能学报, 2002, 23(1): 111-114. [5] Khouzam K, Hoffman K. Real-time simulation of photovoltaic modules[J]. Solar Energy, 1996, 56(6): 521-526. [6] Phani Kiranmai K S, Veerachary M. Maximum power point tracking: a PSPICE circuit simulator approach[C]. Power Electronics and Drives Systems, International Conference, 2005, 2: 1072-1077. [7] 董博, 李永东, 王奎, 等. 光伏电池模拟器的设计与研究[J]. 电源技术, 2010, 34(5): 460-463. [8] Ollila J. A medium power PV-array simulator with a robust control strategy[C]. Control Applications, Proceedings of the 4th IEEE Conference, 1995: 40-45. [9] Lloyd S H, Smith G A, Infield D G. Design and construction of a modular electronic photovoltaic simulator[C]. 8th International Conference on Power Electronics and Variable Speed Drives, 2000: 120-123. [10] Zeng Q R, Song P G, Chang L C. A photovoltaic simulator based on DC chopper[C]. IEEE Canadian Conference on Electrical and Computer Engineering, Electrical and Computer Engineering, 2002, 257-261. [11] Koutroulis E, Kalaitzakis K, Tzitzilonis V. Development of an FPGA-based system for real-time simulation of photovoltaic modules[C]. 7th IEEE International Workshop on Rapid System Prototyping, 2006: 200-208. [12] 宫鑫, 宋稳力. 基于TMS320F28335的光伏电池模拟器设计[J]. 电子元器件应用, 2008, 10(3): 13-15. [13] Guo Q. Design and development of a computer- controlled PV array simulator [J]. Semiconductor Photonics and Technology, 2010, 16(2): 112-119. [14] 杨鹏, 刘松, 沈楚焱. 一种数字式光伏阵列模拟系统的研究[J]. 电工电气, 2011, 1(2): 11-14. [15] 韩朋乐, 黄建国. 数字式光伏阵列模拟器的设计研究[J]. 电子元器件应用, 2009, 10(11): 51-54. [16] 郑鹤玲, 葛宝明, 毕大强. 基于RT-LAB的光伏发电系统实时仿真[J]. 电工电能新技术, 2010, 29(4): 62-66. [17] 徐鹏威, 杜柯, 刘飞, 等. 光伏电池阵列模拟器研究[J]. 通信电源技术, 2006, 23(5): 5-8. [18] 宋平岗. 再生能源系统中太阳能电池仿真器的研究[J]. 电力电子技术, 2003, 37(4): 42-44, 41. 作者简介:李 媛 女, 1980年生, 博士, 讲师, 研究方向为可再生能源发电技术, 分布式电源接入和电力系统电力电子技术。
2012, Vol. 27 
