• VISHAL S SHETH
• KRISHNA S JASHAPARA
• URVISHA J TANK

The AC-DC power converters are widely used in various applications like power equipment, dc motor drives, front-end converters in adjustable-speed ac drives, slip power recovery of induction motors, HVDC transmission, SMPSs etc... The AC-DC conversion is accomplished by an uncontrollable diode bridge rectifier and phase controlled rectifier. These converters have simple structure and they offer high consistency [1]. But their major drawback is the discontinuity in supply current. This leads to presence of harmonics in higher proportion, poor power factor at supply side and reduction in average output voltage. To overcome these problems, the use of PWM techniques for controlling the state of active switches is becoming wide. The converter using such techniques is widely known as Active Front End Converter. This paper presents the power quality comparison of diode bridge rectifier, phase control rectifier & active front end converter operated by SPWM and SVPWM control techniques. The simulation results of the presented techniques have been demonstrated, compared with hardware and then conclusion is drawn from the comparison.

AFE, SPWM, SVPWM,

"Power Quality Improvement using PWM based Active Front End Converter", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.970-979, November-2018, Available :http://www.jetir.org/papers/JETIRK006147.pdf

"Power Quality Improvement using PWM based Active Front End Converter", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp970-979, November-2018, Available at : http://www.jetir.org/papers/JETIRK006147.pdf