Journal ArticleDOI
Multilevel Circuit Topologies Based on the Switched-Capacitor Converter and Diode-Clamped Converter
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TLDR
The results show that balancing the voltages of capacitors, boosting the output voltages, and operating under the three-phase condition are all realized effectively in the MCT-BSD.Abstract:
The novel multilevel circuit topologies are proposed in this paper. They are called multilevel circuit topologies based on switched-capacitor and diode-clamped converters (MCT-BSD). The topology structure and the operation principle, including the working states' transitions of the diode-clamped part, the voltages balancing mechanism of the dc link capacitors, and the pulse width modulated carrier control strategy are given. The switched-capacitor circuits contribute not only to balancing the voltages of capacitors but also to boosting the output voltage with a certain input dc voltage. The validity of the MCT-BSD is verified by simulations and experiments. The results show that balancing the voltages of capacitors, boosting the output voltages, and operating under the three-phase condition are all realized effectively in the MCT-BSD. The simulations also show the generalization of the MCT-BSD for n-level topologies.read more
Citations
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Journal ArticleDOI
Review of Battery Charger Topologies, Charging Power Levels, and Infrastructure for Plug-In Electric and Hybrid Vehicles
Murat Yilmaz,Philip T. Krein +1 more
TL;DR: In this paper, the authors present the current status and implementation of battery chargers, charging power levels, and infrastructure for plug-in electric vehicles and hybrid vehicles and classify them into off-board and on-board types with unidirectional or bidirectional power flow.
Journal ArticleDOI
Circulating Harmonic Current Elimination of a CPS-PWM-Based Modular Multilevel Converter With a Plug-In Repetitive Controller
TL;DR: In this article, an improved circulating current control method by applying a digital plug-in repetitive controller is discussed for harmonic elimination of a carrier-phase-shift pulse-width-modulation (CPS-PWM)-based modular multilevel converter (MMC).
Journal ArticleDOI
A Switched-Capacitor-Based Active-Network Converter With High Voltage Gain
Yu Tang,Ting Wang,Yaohua He +2 more
TL;DR: The proposed active-network converter with switched-capacitor technique can achieve high voltage gain without extremely high duty ratio and the voltage stress of the active switches and output diodes is low.
Journal ArticleDOI
Multilevel SVPWM With DC-Link Capacitor Voltage Balancing Control for Diode-Clamped Multilevel Converter Based STATCOM
TL;DR: A space vector pulsewidth modulation (PWM) (SVPWM) algorithm is proposed, which is in α'β' frame with dc-link capacitor voltage equalization for diode-clamped multilevel converters (DCMCs) and a five-level DCMC-based static synchronous compensator is built and tested.
Journal ArticleDOI
Voltage Balancing Approaches for Diode-Clamped Multilevel Converters Using Auxiliary Capacitor-Based Circuits
TL;DR: In this paper, an auxiliary capacitor-based balancing approach is adopted to equalize the dc-link capacitor voltages of a diode-clamped multilevel converter (DCMC).
References
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Multilevel inverters: a survey of topologies, controls, and applications
TL;DR: The most important topologies like diode-clamped inverter (neutral-point clamped), capacitor-Clamped (flying capacitor), and cascaded multicell with separate DC sources are presented and the circuit topology options are presented.
Proceedings ArticleDOI
Multilevel converters-a new breed of power converters
Jih-Sheng Lai,Fang Zheng Peng +1 more
TL;DR: This paper presents three multilevel voltage source converters: (1) diode-clamp, (2) flying-capacitors, and (3) cascaded-inverters with separate DC sources.
Proceedings ArticleDOI
A multilevel voltage-source inverter with separate DC sources for static VAr generation
TL;DR: A new multilevel voltage-source inverter with separate DC sources is proposed for high-voltage, high power applications, such as flexible AC transmission systems (FACTS) including static VAr generation (SVG), power line conditioning, series compensation, phase shifting, voltage balancing, fuel cell and photovoltaic utility systems interfacing, etc.
Proceedings ArticleDOI
A generalized multilevel inverter topology with self voltage balancing
TL;DR: This paper presents a generalized multilevel inverter (converter) topology with self voltage balancing that provides a true multileVEL structure that can balance each DC voltage level automatically without any assistance from other circuits, thus in principle providing a complete and trueMultilevel topology that embraces the existing multilesvel inverters.
Proceedings ArticleDOI
Multilevel converters as a utility interface for renewable energy systems
Leon M. Tolbert,Fang Zheng Peng +1 more
TL;DR: In this article, the cascaded H-bridges multilevel inverter is described, which is ideal for connecting either in series or in parallel an AC grid with renewable energy sources such as photovoltaic or fuel cells or with energy storage devices such as capacitors or batteries.