Controlling the Vienna rectifier using a simplified space vector pulse width modulation technique

In this thesis, a simplified Space-Vector Pulse-Width-Modulation (SVPWM) technique for the Vienna rectifier is introduced to reduce the computational burden, the switching losses and the Total-Harmonic-Distortion (THD). Furthermore, the robustness of this modulation technique is tested under various faults through a 70 kW MATLAB/Simulink model and the results are validated through 1.2 kW prototype. The results reveal that the simplified SVPWM provides a low THD, unity Power-Factor (PF) and effective capacitor voltage balancing even after extreme faults. This study introduces a multilevel Power-Factor-Correction (PFC) converter in a 2-stage configuration. The first stage is the Vienna rectifier which has a high boosting ratio. To overcome this issue, a high efficiency 4-switch converter is cascaded with the Vienna rectifier. This converter employs storage-less passive components and provides a Zero-Current-Switching (ZCS) for all of its switches. A description of the converter is first introduced followed by the simulation results.

Name thesis:degree_name

Master of Applied Science (MASc)

Discipline thesis:degree_discipline

Electrical and Computer Engineering

Grantor

University of Ontario Institute of Technology

Year dc:date.issued

2019

Author dc:creator

• Sunbul, Ali

Advisor dc:contributor.advisor

• Sood, Vijay

• PFC
• Multi-level rectifier
• Vienna rectifier
• Soft switching
• Space vector modulation

Language dc:language.iso

en

Handle dc:identifier.uri

https://hdl.handle.net/10155/1115

OAI identifier oai:identifier

oai:ontariotechu.scholaris.ca:10155/1115