Ahead of Print article · Journal article
High performance control strategy for single-phase three-level neutral-point-clamped traction four-quadrant converters
Beijing Jiaotong University1
University of New South Wales2
Department of Electrical Engineering, Technical University of Denmark3
Center for Electric Power and Energy, Centers, Technical University of Denmark4
Smart Electric Components, Center for Electric Power and Energy, Centers, Technical University of Denmark5
Operational data from Chinese railways indicate a number of challenges for traction four-quadrant converter (4QC) control including low-order voltage and current harmonics and reference tracking. A control strategy for a single-phase three-level neutral-point-clamped 4QC employed in the electric multiple unit traction system is proposed in this study.
The strategy is based on a multiple frequency tuned quasi-proportional resonant controller in the ac-side current loop and a multiple frequency tuned notch filter in the dc-link voltage loop. Under the typical supply voltage distortion present in the network, the proposed control strategy improves the current tracking performance and reduces the line current harmonics, when compared with conventional control strategies.
Experimental results, both under purely sinusoidal and distorted supply voltages, validate the effectiveness of the proposed control strategy.
| Language: | English |
|---|---|
| Publisher: | IET |
| Year: | 2017 |
| Pages: | 884-93 |
| ISSN: | 17554543 and 17554535 |
| Types: | Ahead of Print article and Journal article |
| DOI: | 10.1049/iet-pel.2016.0153 |
| ORCIDs: | 0000-0003-1686-9344 , 0000-0002-4313-1647 and Agelidis, Vassilios |
4QC control Chinese railways ac-side current loop current harmonics current tracking performance dc-link voltage loop electric current control electric multiple unit traction system electric vehicles frequency control high performance control strategy line current harmonics low-order voltage multiple frequency tuned notch filter multiple frequency tuned quasiproportional resonant controller notch filters power convertors railway electrification reference tracking single-phase three-level neutral-point-clamped traction four-quadrant converters supply voltage distortion traction power supplies voltage control
