Recent advances in high-power industrial applications

Franquelo, Leopoldo G.; Leon, Jose I.; Domínguez, Eugenio

doi:10.1109/isie.2010.5637656

Cited by 17 publications

(3 citation statements)

References 22 publications

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“…Modulation techniques for power converters are developed in the following form [34][35][36]. Although there are several space vector based algorithms, carrier based PWM is a dominant modulation technique in converters operations.…”

Section: Modulation Techniquementioning

confidence: 99%

Glance into solid-state transformer technology: a mirror for possible research areas

Umar

Jibril²,

Jimoh³

et al. 2020

J. Appl. Mat. Tech.

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Solid-State Transformer (SST), a power electronics based transformer is an emerging technology in electric power system. The transformer is being investigated to completely replace existing Line/Low Frequency Transformer (LFT). SST is composed of either of the two topologies: AC-DC-AC, two steps approach; or AC-AC, single-step approach. The two steps approach consists of three stages: AC-DC; DC-DC; and DC-AC stages. The DC-DC stage is made up of a boost DC-DC converter, a DC-AC inverter and a High Frequency Transformer, HFT. Therefore, SST performs the tasks of LFT by means of power electronic converters and HFT. The main essence of SST is to provide solution to the problem of bulkiness and heaviness of the LFT in the power distribution network. This is with the view to providing reduction in construction cost, cost of maintenance and transportation. The power electronics transformer provides numerous advantages which are grouped into: The transformer has high power density; it functions in blackouts and brownouts; and it provides easy means of distributed renewable energy integration into associated grid. Therefore, this paper provides a glance into the technology of the SST for its better understating and promotion of research activities in the area.

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Section: Modulation Techniquementioning

confidence: 99%

Glance into solid-state transformer technology: a mirror for possible research areas

Umar

Jibril²,

Jimoh³

et al. 2020

J. Appl. Mat. Tech.

View full text Add to dashboard Cite

show abstract

“…Improving constantly the output waves of multilevel inverters, to meet international standards increasingly stringent, is within this context. In literature, there is a wealth of available papers addressing this topic [1][2][3][4][5][6][7][8]. The need for better communication between researchers urges in order to avoid vain efforts.…”

Section: Introductionmentioning

confidence: 99%

Voltage THD limits for three- and single-phase multilevel inverters

Rehaoulia¹

2022

Journal of Electrical Engineering

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This paper deals with single and three phase multilevel inverters power quality. The voltage total harmonic distortion rate is an important criterion for choosing the number of inverter levels and checking compatibility with power quality requirements. In this study, the author raises an interesting issue related to the definition of voltage THD boundaries with upper and lower limits. The problem is reformulated, and a novel and more practical approach is developed for three- and single-phase multilevel inverters. Found upper and lower voltage THD limits are sufficiently verified with most known switching algorithms like sinusoidal modulation (SM) with phase disposition (PD), space vector modulation (SVM) and selective harmonic elimination (SHE). They are also valid for cascaded (H-Bridge), neutral point clamped (NPC) and flying capacitors (FC) multilevel inverters.

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“…There are three multilevel voltage source inverter categories, namely neutral-point-clamped (NPC) or diode-clamped, flying capacitor (capacitor clamped), and cascaded H-bridge multilevel [1]- [3], [10]. Cascaded H-bridge multilevel inverter has been used in high power and high quality applications [1], [2] such as static voltampere reactive power generation [1], active filters [8], reactive power compensators, photovoltaics power conversion [11], and uninterruptible power supplies (UPS).…”

Section: Introductionmentioning

confidence: 99%

A Novel State-of-Charge Balancing Method Using Improved Staircase Modulation of Multilevel Inverters

Gholizad

Farsadi

2016

IEEE Trans. Ind. Electron.

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Multilevel converters have received more attention recently. Multilevel converters can be used not only in high voltage high power applications, but also in energy storage systems, thanks to reduced harmonics and electromagnetic interferences (EMI). State of Charge (SoC) balancing of the storage system cells within cascaded multilevel inverters, e.g., batteries, can be one of the challenges in practical applications. Different methods have been studied and reported in technical literature. However, the SoC balancing is still a challenging issue. In this paper, a new method is proposed to solve this problem by applying several clever but simple changes to the staircase modulation switching scheme without changing the output waveform properties. Validations for this simple method were performed through simulation and experimental prototype. Despite the simplicity of the method, the simulation and experimental results show that SoC balancing of the cells has significantly improved.

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Recent advances in high-power industrial applications

Cited by 17 publications

References 22 publications

Glance into solid-state transformer technology: a mirror for possible research areas

Glance into solid-state transformer technology: a mirror for possible research areas

Voltage THD limits for three- and single-phase multilevel inverters

A Novel State-of-Charge Balancing Method Using Improved Staircase Modulation of Multilevel Inverters

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