Modeling and Assessment of D-STATCOM in Grid Connected PV System Using ANN and ANFIS Controller

Ali Jaber Alqattan, Fadhel Albasri, S. Ali Al-Mosawi

Abstract


Photovoltaic (PV) solar energy is regarded as one of the most abundant forms of renewable energy. As a result, more PV systems are being installed, which is leading to new power quality issues in grid systems. Unbalanced voltages, changing power levels, harmonic distortions, or reverse power flow are a few instances of these issues. Distribution Static Synchronous Compensation (D-STATCOM) is viewed as a potential remedy to lessen the negative effects of PV integration on voltage regulation and harmonic distortion in electrical distribution systems. By developing and contrasting an enhanced control system for D-STATCOM. By simulating a power system model with an integrated PV system and D-STATCOM, simulation research is carried out. To improve the power quality of the power system, two control schemes Artificial Neural Network (ANN), and Adaptive Neuro-fuzzy Inference System (ANFIS) were implemented within the internal control of D-STATCOM. A Hysteresis Current Controller and a Sinusoidal Pulse Width Modulation (SPWM) inverter arrangement were modified (HCC). Results are produced in the form of voltage profiles for all the control schemes taken into consideration with various inverter types under various contingency scenarios. Control characteristic evaluation for various controllers is another method used to assess performance. Graphical techniques, Total Harmonic Distortion (THD), and Root Mean Squared Error were used to examine various scenarios (RMSE). This work has made the following original contributions to the area of D-STATCOM systems where, different controller techniques and inverter are applied to D-STATCOM and compared to find out the best type of control. The result proven that the performance of SPWM with ANFIS was better than other control schemes in most of the scenarios. Hence, it was found that the SPWM inverter strategy adapts the control input fast rather than the Hysteresis scheme. The above conclusion signifies that the performance of advanced controllers, especially ANFIS, was best among other controllers. It can effectively be used to enhance the power quality of the power system using D-STATCOM devices.

Keywords


D-STATCOM, Power Quality, Harmonics, Total Harmonic Distortion

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References


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DOI (PDF): https://doi.org/10.20508/ijrer.v15i3.14926.g9080

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