A Comparative Performance of Different Controllers for Mitigating Harmonic Distortion on 132 kV Sub-Transmission Lines Reinforced With Statcom
DOI:
https://doi.org/10.63746/njtd.v22i4.3664Keywords:
Controllers, STATCOM, Sub-transmission lines, Voltage sag, Voltage swellAbstract
Power quality issues remain one of the prominent challenges facing most of the utility grids in many third-world countries. It affects the satisfactory performance of customers’ connected loads and presents significant energy loss and heightened maintenance costs to the utility company. It is on these premises that this current study investigated the performance comparison of four different controllers in the presence of a Static Synchronous Compensator (STATCOM) incorporated with 132kV sub-transmission lines. The controllers (Model Reference predictive adaptive controller (MRPAC), Genetic algorithm-based proportional integral derivative (GA-PID), genetic algorithm-based proportional integral (GA-PI), and traditional proportional integral derivative (PID) controllers), STATCOMs, and transmission lines were modeled in the Simulink environment, and the controllers were tuned appropriately to mitigate the effect of total harmonic distortion, voltage sag, and voltage swell on the sub-transmission lines. The performance comparison of these controllers was benchmarked using the rise time (RT), settling time (ST), and percentage overshoot (PO). The total harmonic distortion was 0.01, 10, 12, 10, and 2.5 for MRPAC, GA-PID, GA-PI, PID, and IEEE 519, respectively. Also, for the cases of voltage swell and voltage sag, MRPAC showed the least value of RT, ST, and PO. Conclusively, MRPAC control-based STATCOM demonstrated a superior response profile relative to the IEEE 519 standard.
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