Abstract

The goal of the control strategy for three-phase Pulse Width Modulation (PWM) rectifiers operating under unbalanced voltage conditions is to avoid ripple in the DC-link voltage and harmonics in the input AC currents. A stationary frame control scheme which regulates the instantaneous active power at the converter poles for minimizing of input/output harmonics is used. The design of the control loops involved in this control strategy is provided in this paper. Furthermore, a dynamic analysis of the PWM rectifier operating under balanced and unbalanced voltage operating conditions is performed. The analysis is supported by experimental results for a 20 kVA PWM rectifier prototype. Fast dynamic performance with small DC-link voltage ripple and input sinusoidal currents are obtained with this control scheme even under severe voltage dips operating conditions.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.