Academic Performance Indices: Error Calculation in Distributed MPP Tracking using PID and FLC
Keywords:
PID, FLC, MATLAB/SIMULINK, ISE, IAE, ITSE, ITAEAbstract
The extensive use of PV panels in Distributed and Renewable Electricity Generation is significantly driving
Green energy revolution globally. The core of Distributed generation i.e. maximization of power output from
panels is being propelled by Maximum Power Point Trackers. However, fully tracked systems with outputs 40-
45% can be made to accomplish reduced loss with determination of errors. This includes convergence of
iterative output sequences for distributed temperature and irradiance functions. Different sets of tuning
parameters based on academic performance indices for PID and FLC are investigated in this paper. These are
optimized through MATLAB/SIMULINK to obtain converter output close to the desired with minimum error.
The analysis of Integral of Squared Error (ISE), Integral of Absolute Error (IAE), Integral of time multiplied by
Squared Error (ITSE) and Integral of time multiplied by Absolute Error (ITAE) is carried out on validated
model (PID as well as FLC). A comparative study for both models is presented in the paper. The simulation
results shown in the present paper confirms that the errors (ISE, IAE, ITSE and ITAE) are minimized even for
changing temperature and irradiance and the best results are obtained using an FLC system. The model designed
is intended to be beneficial source for PV engineers and researchers to provide high efficiency with the use of
MPPT.
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