en Active and Reactive Power Converter Control Active and Reactive Power Converter Control Research Paper Research Paper <span style="font-size:10.0pt"><span style="font-family:&quot;Times New Roman&quot;,serif">Power quality enhancement in modern distribution systems has become a critical challenge due to the proliferation of nonlinear loads and distributed generation. Unified Power Quality Conditioner (UPQC) systems offer a comprehensive solution by integrating series and shunt compensators to mitigate voltage and current disturbances. However, conventional UPQC topologies often involve a high number of switches, resulting in increased complexity, switching losses, and cost. This paper proposes a reduced switch seven-level three-phase UPQC configuration aimed at improving voltage regulation and current harmonic suppression while minimizing component count and system complexity. The proposed topology employs a control strategy such as Instantaneous Reactive Power Theory (IRP) and Synchronous Reference Frame (SRF) theory to enhance dynamic performance. Simulation studies conducted in MATLAB/Simulink demonstrate significant improvements in Total Harmonic Distortion (THD), voltage sag/swell mitigation, and compliance with IEEE-519 standards. The findings validate the technical feasibility and effectiveness of the reduced-switch design in achieving superior power quality in distribution systems.</span></span> Cascaded H-bridge, Current quality, Power distribution system, Power quality, Seven level five switch converter, UPQC, Voltage quality. 3995 3995 http://ijeee.iust.ac.ir/browse.php?a_code=A-10-5950-2&slc_lang=en&sid=1 Veera Nagi Reddy Varampati veera.varampati@uta.edu.om Yes Department of Engineering and Technology, University of technology and Applied Sciences, Ibri, Oman Venkata Reddy Kota kvr.jntu@gmail.com No Department of Electrical and Electronics Engineering, Jawaharlal Nehru Technological University, Kakinada, India. Ashok Kumar Devarasetty Venkata rgmdad09@gmail.com No RGM College of Engineering and Technology, , Nandyal