Fuzzy PID Control Strategy in the Application of the MPPT

Abstract:

In photovoltaic MPPT control ,Compared with the traditional methods ,the conventional fuzzy algorithm had overcome the shortcomings of low accuracy, tracking slow and low efficiency from the external environment changes, And have no need to have excessive demands on the precision of the sensor and no "false positives" , Volatile situation still exist around the track points for it is asynchronous control, so there is a steady state error .A new method was proposed which combines the principle of fuzzy control and the PID control theory in this paper , The simulation results show the fuzzy PID can not only quickly respond to changes in the external environment, which can effectively eliminate the work of the maximum power point of the oscillation in fuzzy control and also make up shortcomings of a longer transition time. the simulation results proved the superiority of this algorithm.

• Periodical: Applied Mechanics and Materials (Volume 734)
• Pages: 755-758
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.734.755
• Online since: February 2015
• Authors: Huan Yong Qiu*, Yi Qun Yang
• Keywords: Fuzzy PID Control, MATLAB, MPPT, PV

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