Journal ArticleDOI
Modular Multilevel Converters for HVDC Applications: Review on Converter Cells and Functionalities
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In this article, the principle of modularity is used to derive the different multilevel voltage and current source converter topologies for high-power dc systems, where the derived converter cells are treated as building blocks and are contributing to the modularity of the system.Abstract:
In this paper, the principle of modularity is used to derive the different multilevel voltage and current source converter topologies. The paper is primarily focused on high-power applications and specifically on high-voltage dc systems. The derived converter cells are treated as building blocks and are contributing to the modularity of the system. By combining the different building blocks, i.e., the converter cells, a variety of voltage and current source modular multilevel converter topologies are derived and thoroughly discussed. Furthermore, by applying the modularity principle at the system level, various types of high-power converters are introduced. The modularity of the multilevel converters is studied in depth, and the challenges as well as the opportunities for high-power applications are illustrated.read more
Citations
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Proceedings ArticleDOI
Impedance modeling and analysis of modular multilevel converters
Jian Sun,Hanchao Liu +1 more
TL;DR: In this article, the authors present impedance modeling of modular multilevel converters (MMC) for stability and resonance analysis of HVDC transmission, renewable energy, STATCOM and other systems that increasingly rely on MMC as the hardware building block.
Journal ArticleDOI
A Fast Finite-Level-State Model Predictive Control Strategy for Sensorless Modular Multilevel Converter
TL;DR: A fast finite-level-state model predictive control (FFLS-MPC) strategy for solving the well-known challenges in the predictive control-regulated modular multilevel converter (MMC), which aims to overcome the high computational complexity and enhance the reliability of the control system.
Journal ArticleDOI
Low-Capacitance Modular Multilevel Converter Operating With High Capacitor Voltage Ripples
TL;DR: Evaluation shows that the cost and volume of the HR-MMC can be reduced due to the reduction of energy storage requirements, and the volume reduction effect is particularly obvious.
Journal ArticleDOI
An Improved Phase-Shifted-Carrier Technique for Hybrid Modular Multilevel Converter With Boosted Modulation Index
TL;DR: In this paper, an improved phase-shifted-carrier (PSC) technique with a capacitor sorting algorithm was proposed to overcome the asymmetric voltage reference wave problem for half/full-bridge hybrid modular multilevel converter (MMC) with boosted modulation index.
Journal ArticleDOI
A New Hybrid Multilevel DC–AC Converter With Reduced Energy Storage Requirement and Power Losses for HVDC Applications
TL;DR: In this paper, the authors proposed a new dc-ac converter composed of submodules and series insulated-gate bipolar transistor (IGBT) switches, which can help to reduce the quantities of sub-modules, thereby reducing the energy storage requirement significantly.
References
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A New Neutral-Point-Clamped PWM Inverter
TL;DR: In this article, a neutral-point-clamped PWM inverter composed of main switching devices which operate as switches for PWM and auxiliary switching devices to clamp the output terminal potential to the neutral point potential has been developed.
Journal ArticleDOI
A New Neutral-Point-Clamped PWM Inverter
TL;DR: The neutral-point-clamped PWM inverter adopting the new PWM technique shows an excellent drive system efficiency, including motor efficiency, and is appropriate for a wide-range variable-speed drive system.
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.
BookDOI
Wind Power in Power Systems
TL;DR: In this article, the authors focus on the generation of electricity from clean and renewable sources, and show that wind energy has become the world's fastest growing energy source, and that renewable energy is the most promising energy source.
Proceedings ArticleDOI
An innovative modular multilevel converter topology suitable for a wide power range
A. Lesnicar,Rainer Marquardt +1 more
TL;DR: In this article, a new multilevel converter topology suitable for very high voltage applications, especially network interties in power generation and transmission, is presented, and a suitable structure of the converter-control is proposed.
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An innovative modular multilevel converter topology suitable for a wide power range
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