• Dr.Akhib Khan Bahamani
• Bakkamunthala Sumanth
• Sk Haseeb
• P Lakshmi Narasimha
• S chaitanya, SK Riyaz

This paper presents the MATLAB simulation model of a UPFC for open loop controlled as a voltage sag mitigation device in electrical power distribution networks. The comparison is done in term of time domain response parameters like steady state error, Total Harmonic Distortion & settling time. UPFC is a popular device to improve voltage of weak buses in multi bus system. This work deals with modeling and simulation of open loop controlled quadratic boost converter boost converter with TZSI based UPFC in wind, and PV system. Various issues such as voltage sag/ harmonics and distortion degrade the power quality and leads to system failure. This work deals with modeling and simulation of open loop controlled Three Phase voltage Trans Z-source inverter based UPFC and statcom in two bus system.

UPFC-Unified power flow controller, Dynamic voltage restorer, Static compensator

"Enhancing the Power Quality Improvement of QBC Fed Trans ZSI-UPFC for Grid-Connected RES Systems ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 6, page no.366-375, June-2024, Available :http://www.jetir.org/papers/JETIRGJ06057.pdf

"Enhancing the Power Quality Improvement of QBC Fed Trans ZSI-UPFC for Grid-Connected RES Systems ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 6, page no. pp366-375, June-2024, Available at : http://www.jetir.org/papers/JETIRGJ06057.pdf