Hybrid Reference Current Generation Theory for Solar Fed UPFC System

R. Senthil Kumar, K. Mohana Sundaram and K. S. Tamilselvan
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R. Senthil Kumar: Department of Electrical and Electronics Engineering, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, India
K. Mohana Sundaram: Department of Electrical and Electronics Engineering, KPR Institute of Engineering and Technology, Coimbatore 641407, India
K. S. Tamilselvan: Department of Electronics and Communication Engineering, KPR Institute of Engineering and Technology, Coimbatore 641407, India

Energies, 2021, vol. 14, issue 6, 1-19

Abstract: The extensive usage of power electronic components creates harmonics in the voltage and current, because of which, the quality of delivered power gets affected. Therefore, it is essential to improve the quality of power, as we reveal in this paper. The problems of load voltage, source current, and power factors are mitigated by utilizing the unified power flow controller (UPFC), in which a combination of series and shunt converters are combined through a DC-link capacitor. To retain the link voltage and to maximize the delivered power, a PV module is introduced with a high gain converter, named the switched clamped diode boost (SCDB) converter, in which the grey wolf optimization (GWO) algorithm is instigated for tracking the maximum power. To retain the link-voltage of the capacitor, the artificial neural network (ANN) is implemented. A proper control of UPFC is highly essential, which is achieved by the reference current generation with the aid of a hybrid algorithm. A genetic algorithm, hybridized with the radial basis function neural network (RBFNN), is utilized for the generation of a switching sequence, and the generated pulse has been given to both the series and shunt converters through the PWM generator. Thus, the source current and load voltage harmonics are mitigated with reactive power compensation, which results in attaining a unity power factor. The projected methodology is simulated by MATLAB and it is perceived that the total harmonic distortion (THD) of 0.84% is attained, with almost a unity power factor, and this is validated with FPGA Spartan 6E hardware.

Keywords: FACTS; power quality; unified power flow controller; switched clamped diode boost converter; ANN; genetic assisted RBFNN (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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