ZHANG Kai-ru(张开如), PAN An-qi(潘安琪), CHU Xue-jiao(初雪娇)
(College of Information and Electrical Engineering, Shandong University of Science and Technology, Qingdao 266590, China)
Abstract：In order to improve the efficiency and precision of maximum power point tracking (MPPT) control, a new method is proposed. Based on original MPPT technology of photovoltaic cells, the fuzzy adaptive proportion-integral-differential（PID） control has less fluctuation and higher stability. The simulation circuit using Simulink is established, and output power curves under constant temperature or constant sunlight are obtained. The superiority of the fuzzy PID control method has been proved by means of the simulation results, and it makes the solar system approach maximum power point quickly and smoothly.
Key words：photovoltaic cells; fuzzy proportion-integral-differential（PID）; maximum power point tracking（MPPT）; simulink
CLD number： TP273+.2 Document code： A
Article ID： 1674-8042(2012)04-0389-04 doi： 10.3969/j.issn.1674-8042.2012.04.018
References
[1] MAO Mei-qin, YU Shi-jie, SU Jian-hui. Versatile Matlab simulation model for photovoltaic array with MPPT function. Journal of System Simulation, 2005, 17(5): 1248-1251.
[2] LI Wei, ZHU Xin-jian. The maximum power point tracking control of a photovoltaic power system. Computer Simulation, 2005, 23(6): 242-243.
[3] LIU Jin-kun. Advanced PID control Matlab simulation. Third edition. Beijing: Publishing House of Electronics Industry, 2004.
[4] ZHANG Li-sheng, LI Quan. Design on photovoltaic cell MPPT based on fuzzy control. Modern Electronic Technology, 2009, 15: 165-167.
[5] SU Jian-hui, YU Shi-jie, ZHAO Wei,et al. Investigation on engineering analytical model of silicon solar cells. Acta Energiae Solaris Sinica, 2001, 22(4): 409-412.
[6] WANG Yu, HU Ren-jie. Modeling and simulation of PV module output characteristics and MPPT based on Matlab. Semiconductor Optoelectronics, 2011, 33(1): 18-21.
[7] WU Da-zhong, WANG Xiao-wei. A photovoltaic MPPT fuzzy controlling algorithm. Acta Energiae Solaris Sinica, 2011, 32(6): 808-813.
[8] SHAO Wei-chao, ZHU Ling. Study on photovoltaic array and MPPT simulation model based on Matlab. Chinese Journal of Power Sources, 2012, 36(2): 209-211.
[9] ZHANG Jian-po, ZHANG Hong-yan, WANG Tao, et al. Simulation of MPPT control algorithms for photovoltaic system. Computer Simulation,2010,27(1):266270.
[10] LI Xing-peng, SHI Qing-jun, JIANG Quan-yuan. Application of double fuzzy control in MPPT of grid-connected photovoltaic generation system. Electric Power Automation Equipment, 2012, 32(8): 113-117.
[11] HUANG Shu-yu, MU Long-hua, SHI Lin. Adaptive variable step size MPPT algorithm. Proc. of the Chinese Society of Universities for Electric Power System and its Automation, 2011, 23(5): 26-30.
