High frequency three-phase PWM grid connected drive using silicon-carbide switches

Alireza Kouchaki, Jacob Lykke Pedersen, Morten Nymand, Radu Lazar

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Abstrakt

This paper presents controller design procedure for a fully silicon-carbide (SiC) based three-phase grid-connected PWM drive. The influence of the feedforward compensation for the presented setup is studied and the transfer function of the system with feedforward is derived and compared with the normal condition. The presented analytical model helps to calculate the parameters of the close-loop system with the feedforward compensation. According to this model, the stability analysis can be carried out more accurately and a valid comparison can be provided between the system without and with this compensation. The controller is designed for a 5 kW SiC based three-phase rectifier (switching frequency 50 kHz) connected to a 7.5kW SiC based inverter (switching frequency 32 kHz). Experimental results are also carried out to validate the operation of the controller under different operating conditions. A failure test is also conducted to highlight the drawbacks of feedforward with high forward gain.
OriginalsprogEngelsk
TitelProceedings of the 2nd IEEE Annual Southern Power Electronics Conference
Antal sider6
ForlagIEEE
Publikationsdato2016
ISBN (Trykt)978-1-5090-1547-4
ISBN (Elektronisk)978-1-5090-1546-7
DOI
StatusUdgivet - 2016
Begivenhed2nd IEEE Annual Southern Power Electronics Conference - Auckland, New Zealand
Varighed: 5. dec. 20168. dec. 2016
Konferencens nummer: 2

Konference

Konference2nd IEEE Annual Southern Power Electronics Conference
Nummer2
LandNew Zealand
ByAuckland
Periode05/12/201608/12/2016

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Citationsformater

Kouchaki, A., Pedersen, J. L., Nymand, M., & Lazar, R. (2016). High frequency three-phase PWM grid connected drive using silicon-carbide switches. I Proceedings of the 2nd IEEE Annual Southern Power Electronics Conference IEEE. https://doi.org/10.1109/SPEC.2016.7846097