Proceedings ArticleDOI
Research on the characteristics of a novel traction supply system for urban railway transportation based on three-level voltage source PWM rectifier
Maosheng Shen,Zhigang Liu,Gang Zhang,Lei Wang +3 more
- pp 1375-1380
TLDR
In this article, the characteristics of a three-level PWM rectifier-based traction system with the DC voltage of 1500V were investigated. And the topology and control strategy for a single threelevel module in the system, as well as the control strategies for paralleled connection of such modules, all subjected to simulations and experiments.Abstract:
To accomplish a higher departure density and velocity, the traction supply is required to generate higher power, higher power factor, and better stability with higher power conservation ratio, which makes a novel traction system with PWM rectifier the research focus in such area. Analysis of the differences between our novel supply system and a conventional one consisting of uncontrolled diode rectifiers is presented in this paper. Oriented to a traction system with the DC voltage of 1500V,the characteristics of such novel supply system based on three-level PWM rectifier is studied. What's more, in this paper are introduced thoroughly the topology and control strategy for single three-level module in the system, as well as the control strategy for paralleled connection of such modules, all subjected to simulations and experiments.read more
Citations
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Journal ArticleDOI
Soft-switching converter with low circulating current and wide range of ZVS turn-on
Bor-Ren Lin,Yu-Bin Nian +1 more
TL;DR: A new hybrid dc-dc converter with low circulating current within the freewheeling interval, wide range of zero-voltage switching and reduced output current ripple is presented.
Proceedings ArticleDOI
Model-Free Predictive Current Control of PWM Rectifier Under Unbalanced and Distorted Network
TL;DR: The presented experimental results prove that the proposed model-free predictive current control scheme achieves good performance under a distorted network even with an inaccurate inductance value.
Journal ArticleDOI
Finite‐control‐set model predictive control for eight‐switch three‐phase NPC converters
Longda Wang,Xingcheng Wang +1 more
Proceedings ArticleDOI
Soft switching hybrid converter with low circulating current
TL;DR: In this article, a hybrid dc-dc converter with low circulating current within the freewheeling interval, wide range of zero voltage switching (ZVS), and reduced output inductors is presented.
References
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A comprehensive study of neutral-point voltage balancing problem in three-level neutral-point-clamped voltage source PWM inverters
TL;DR: In this paper, the fundamental limitations of the neutral-point voltage balancing problem for different loading conditions of three-level voltage source inverters are explored and a new model in the DQ coordinate frame is developed as a means to investigate theoretical limitations and to offer a more intuitive insight into the problem.
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The nearest three virtual space vector PWM - a modulation for the comprehensive neutral-point balancing in the three-level NPC inverter
TL;DR: In this paper, a new modulation approach based on the virtual space vector concept is proposed for the complete control of the neutral point voltage in the three-level three-phase neutral-point-clamped voltage source inverter.
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Interleaved PWM with discontinuous space-vector modulation
TL;DR: This paper describes the effect of interleaved discontinuous space-vector modulation (SVM) in paralleled three- phase systems using three-phase pulsewidth modulation (PWM) rectifiers as an example and uses a SVM without using zero vectors to eliminate the cause of pure zero-sequence current for parallel operation.
Proceedings ArticleDOI
A neutral-point potential balancing algorithm for three-level NPC inverters using analytically injected zero-sequence voltage
TL;DR: Based on the zero-sequence component of the reference voltages, the authors comprehensively analyzes the neutral-point variation and balancing control for three-level neutral point-clamped inverter.
Journal ArticleDOI
Analysis and controller design of static VAr compensator using three-level GTO inverter
TL;DR: In this paper, a static VAr compensator (SVC) using a three-level GTO voltage source inverter (VSI) is presented for high-voltage, high-power applications.
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