An e-ANOVA Tuned d-q Controller for Single Stage Grid Interface SPV system with Power Quality Improvement

MEGANATHAN PADMANABAN, MEGANATHAN PADMANABAN, SASI CHINNATHAMBI, PUGAZHENDIRAN PARTHASARATHY, NAMMALVAR PACHAIVANNAN

Abstract


In yesteryears, statistical models were popular due to their quantitative outcomes. This paper uses Analysis of Variance (ANOVA) techniques to tune Proportional-Integral (PI) in the d-q controller of Voltage Source Inverter (VSI) of a single-stage three-phase grid integrated Solar Photovoltaic (SPV) systems. The control approach of VSI is interfaced to three-phase grid integrated SPV systems at fast varying irradiance and compensates the non-linear load tied at Point of Common Coupling (PCC). This control scheme provides smooth operation of load balancing and harmonics reduction in grid performance. The enhanced ANOVA (e-ANOVA) tuned d-q controller has the advantage of better perfection than conventional methods, decreases the training data time, reduces the size of the input sample, and retains the sample discretionary information. The substantiated proposed controller is performed under steady-state and dynamic conditions. The proposed controller is compared with conventional d-q controller result shows better response time, satisfactory behavior in uniform and variable irradiance. Simulation illustration shows the ability to improve grid power stability with less fluctuation and Total Harmonic Distortion (THDs). The grid performance and its THDs of voltages and currents are attained within the limitation of harmonic content imposed by international standards. The simulation of the SPV system is carried out in MATLAB/Simulink and their results are validated.

Keywords


Analysis of Variance, ANOVA, Photovoltaic, Single-Stage Inverter, Power quality

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References


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DOI (PDF): https://doi.org/10.20508/ijrer.v11i4.12514.g8325

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