Proceedings ArticleDOI
An innovative modular multilevel converter topology suitable for a wide power range
A. Lesnicar,Rainer Marquardt +1 more
- Vol. 3, pp 272-277
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TLDR
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.Abstract:
This paper presents a new multilevel converter topology suitable for very high voltage applications, especially network interties in power generation and transmission. The fundamental concept and the applied control scheme is introduced. Simulation results of a 36 MW-network intertie illustrate the efficient operating characteristics. A suitable structure of the converter-control is proposed.read more
Citations
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A methodology for developing ‘Chainlink’ converters
TL;DR: In this paper, a matrix chainlink converter is proposed to operate converter topologies built up from combinations of chain circuits as sets of individual current sources, arranged as a matrix form so the current from the input and output terminals are able to circulate through all the chain elements in a subtractive manner.
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Impact on small-signal dynamics of using circulating currents instead of AC-currents to control the DC voltage in MMC HVDC terminals
TL;DR: In this paper, the authors demonstrate that dc-voltage control by acting on the circulating current reference introduces a decoupling between the dynamics of the ac- and dc-side interfaces.
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A novel MMC control scheme to increase the DC voltage in HVDC transmission systems
Rui Li,John E. Fletcher +1 more
TL;DR: In this paper, the authors investigated third harmonic injection applied to a modular multilevel converter (MMC) to generate a higher DC voltage, which is achieved using a novel control scheme that activates existing submodules (SMs) in the converter arms.
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A Novel Z-Type Modular Multilevel Converter With Capacitor Voltage Self-Balancing for Grid-Tied Applications
Tong Zheng,Congzhe Gao,Xiangdong Liu,Xiaozhong Liao,Jun Liang,Zhen Chen,Baiyan Sun,Jingliang Lv +7 more
TL;DR: A novel Z-type MMC is proposed, which can achieve capacitor voltage self-balancing without any balancing control, and the overall control of the converter is significantly simplified.
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Improving capacitor voltage ripples and power losses of modular multilevel converters through discontinuous modulation
Ricard Picas,Salvador Ceballos,Josep Pou,Jordi Zaragoza,Georgios Konstantinou,Vassilios G. Agelidis +5 more
TL;DR: A discontinuous modulation technique for reducing the amplitude of the capacitor voltage ripples and the switching losses, especially at low modulation indices, is presented.
References
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Journal ArticleDOI
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 fast space vector modulation algorithm for multilevel three-phase converters
TL;DR: This paper introduces a general space vector modulation algorithm for n-level three-phase power converters that is computationally extremely efficient and is independent of the number of levels of the power converter.
Proceedings ArticleDOI
Sine-triangle versus space-vector modulation for three-level PWM voltage-source inverters
TL;DR: In this paper, the inherent relations between sine-triangle and space-vector pulsewidth modulation schemes for three-level voltage-source inverters were studied and it was shown that the two schemes can function equivalently through proper selection of common-mode injections in the case of sine triangle modulation, or dwell times in equivalent redundant switching states in a space vector modulation scheme.
Proceedings ArticleDOI
Space vector modulation based on classification method in three-phase multi-level voltage source inverters
TL;DR: In this paper, the authors proposed a vector classification technique to determine sectors and durations associated with SVM in multi-level inverters, which is applicable to any number of levels.
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