A Comparison of Adjustable-Speed Drive Systems: Voltage Source Inverters and Load-Commutated Inverters for High-Power Applications

Rauber, Axel; Bakker, Peter den

doi:10.1109/mias.2020.2982728

Cited by 14 publications

(5 citation statements)

References 14 publications

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“…A voltage inverter is a key component in the electrical power system. Adjustable speed drives [26], uninterruptible power supplies [27], electric vehicles [28] and the integration of renewable energy generation in power systems [29] are some areas where voltage inverters are deployed. There are different types of voltage inverters on the market, but these are expensive, and the circuits are complex.…”

Section: Voltage Invertermentioning

confidence: 99%

Design, Construction and Programming of a Low-Cost Pulsed High-Voltage Direct Current Power Supply for the Electrophoretic Deposition of Silicon Carbide Mixed with Graphite and/or Alumina for Thermoelectric Applications

Reyes Valdez,

De la Cruz Terrazas,

Rodríguez González

2024

Inventions

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This document describes a proprietary design, construction, programming and testing of a low-cost pulsed high-voltage direct current (HVDC) power supply with an output of 430 V and power of 25 W. The design obtained allows costs to be reduced compared to commercial ones, highlighting that the manufacturing of this HVDC is easy to replicate. To demonstrate the operation of the pulsed power supply prototype, coatings of silicon carbide (SiC) and SiC mixed with graphite (C) and/or alumina (Al2O3) were made using the electrophoretic deposition (EPD) method. After processing, samples underwent a heat treatment at 500 °C to evaluate their thermoelectric (TE) efficiency. The samples were analysed via X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, Seebeck coefficient, electrical conductivity and thermal conductivity. The Seebeck coefficient, electrical conductivity and thermal conductivity were measured in a temperature range of 100–500 °C in a nitrogen (N2) atmosphere. The electrical conductivity of the SiC 6C-4Al sample was 0.65 S/cm at 500 °C, while the maximum Seebeck coefficient was 2500 μV/K of the SiC 6C-4Al sample at 200 °C. The thermal conductivity of SiC 6C-4Al was in the range of 0.35–0.37 W/m·K, which was much lower than the SiC sample free of alumina and graphite in the same measured temperature range. In conclusion, the SiC 6C-4Al sample presented the highest figure of merit with a ZT ≈ 0.01.

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Section: Voltage Invertermentioning

confidence: 99%

Design, Construction and Programming of a Low-Cost Pulsed High-Voltage Direct Current Power Supply for the Electrophoretic Deposition of Silicon Carbide Mixed with Graphite and/or Alumina for Thermoelectric Applications

Reyes Valdez,

De la Cruz Terrazas,

Rodríguez González

2024

Inventions

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“…In the past decades, the high-voltage power systems have developed fast to ensure the development of the economy and security of industrial production and of urban and rural residents [1][2][3]. Related devices, high-voltage measurement technology, dielectric insulation test, insulation materials, and long-distance power transmission have made great progress.…”

Section: Design and Management Of High Voltage Power Systems And Insu...mentioning

confidence: 99%

Design and Management of High Voltage Power Systems and Insulation Materials

2022

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To satisfy the fast-growing electricity demand, high-voltage power systems with higher performance and better stability are required, which raises challenges including the design of power systems, the control of high-power electronics, the synthesis and preparation of high-performance insulation materials, evaluation of the insulation conditions, dielectric insulation tests, material modification, environment protection, etc [...]

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“…DJUSTABLE speed drives (ASDs) with higher power and voltage levels have gained attention in the industrial section. They offer better efficiency by adjusting the speed and torque depending on the load demand and can operate with partial instead of full load power [1]. ASDs are based on two-stage conversion, where the first stage is ac-dc conversion and the second stage is dc-ac conversion with controllable voltage and frequency.…”

Section: Introductionmentioning

confidence: 99%

Two-Leg Neutral-Point Diode-Clamped Active Front-End Rectifier

Abdel-Aziz,

Elgenedy,

Williams

2024

IEEE J. Emerg. Sel. Topics Power Electron.

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Active front-end boost rectifiers can replace the uncontrolled diode bridge rectifiers for ac-dc conversion offering high power quality with near unity power factor. The four-switch, B4, topology is gaining interest, either as an inverter or a rectifier, where each switch should withstand the full dc link voltage. Higher voltage-rated power semiconductor devices not only imply slower response with lower overall efficiency but also higher cost and size. Thus, multilevel inverters become a viable solution. This paper investigates a two-leg neutral-point diode-clamped B8 rectifier allowing the series connection of fast, efficient, and low voltage rating switches. The proposed rectifier has better performance and efficiency than the B4 rectifier. Only two inductors instead of three are required. Model predictive current control (MPCC) is developed for accurate current tracking. A model of the proposed rectifier is detailed for the implementation of MPCC. The concept is validated by simulation and experimentation.

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A Comparison of Adjustable-Speed Drive Systems: Voltage Source Inverters and Load-Commutated Inverters for High-Power Applications

Cited by 14 publications

References 14 publications

Design, Construction and Programming of a Low-Cost Pulsed High-Voltage Direct Current Power Supply for the Electrophoretic Deposition of Silicon Carbide Mixed with Graphite and/or Alumina for Thermoelectric Applications

Design, Construction and Programming of a Low-Cost Pulsed High-Voltage Direct Current Power Supply for the Electrophoretic Deposition of Silicon Carbide Mixed with Graphite and/or Alumina for Thermoelectric Applications

Design and Management of High Voltage Power Systems and Insulation Materials

Two-Leg Neutral-Point Diode-Clamped Active Front-End Rectifier

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