Performance and Reliability Review of 650 V and 900 V Silicon and SiC Devices: MOSFETs, Cascode JFETs and IGBTs

Gonzalez, Jose Ortiz; Wu, Ruizhu; Jahdi, Saeed; Alatise, Olayiwola

doi:10.1109/tie.2019.2945299

Cited by 138 publications

(56 citation statements)

References 31 publications

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“…The obtained simplification permits for using the low costs FPGA devices because the core of calculation can be based on the parallel add/subtract and multiply operation. If we take into account a very high operating frequency of the GaN or SiC power switches and the limitations of the one-core processors, the undertaken research is purposeful and justified [33]- [36]. The proposed solution is particularly useful when considering the irregular space of voltage vectors.…”

Section: Discussionmentioning

confidence: 99%

A New Concept of PWM Duty Cycle Computation Using the Barycentric Coordinates in a Three–Dimensional Voltage Vectors Arrangement

et al. 2020

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The paper presents a novel approach to the Pulse Width Modulation (PWM) duty cycle computing for complex or irregular voltage vector arrangements in the two (2D) and three-dimensional (3D) Cartesian coordinate systems. The given vectors arrangement can be built using at least three vectors or collections with variable number of involved vectors (i.e. virtual vectors). Graphically, these vectors form a convex figure, in particular, a triangle or a tetrahedron. The reference voltage vector position inside that figure can be expressed by the barycentric coordinates, which are calculated using the second (2D case) or the third-degree determinant (3D case)-without trigonometry and angles. Thus, the speed of the PWM duty cycle computation rises significantly. The use of the triangle area or the tetrahedron volume, instead of the standard vector projection also permits for a well-defined and universal approach to identifying the reference vector position, especially for converters with complex and/or deformed space-vector diagrams (i.e. floating DC-link, multisource DC-link). The proposed computation scheme is based on simple instructions without trigonometry thereby, the DSP processor, or digital solution for field-programmable gate array, can fast-perform this operation using atomic operations. The aim of the presented considerations is not a novel PWM modulation, but a computable idea of a general calculation scheme for cases in which the distribution of vectors is non-trivial. A detailed algebraic and geometric analysis, as well as mathematical proofs on the total consistency of the results with the standard projection method, are also included. Subsequently, the Three-Dimensional Space Vector Modulation (3D-SVM), is considered as a special background to present a novel approach. INDEX TERMS 3D-SVM, duty cycle calculation, nonlinear loads, space vector, pulse width modulation, 3-level 4-leg inverter.

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Section: Discussionmentioning

confidence: 99%

A New Concept of PWM Duty Cycle Computation Using the Barycentric Coordinates in a Three–Dimensional Voltage Vectors Arrangement

et al. 2020

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“…Both these factors have led to initial uncertainty of the reliability of wide bandgap devices, however this is now being understood much better than in the early versions of these devices. Recent work into a comparative analysis of the long term reliability and performance of SiC devices [23] has provided detailed insight into these aspects and a similar review for GaN power electronics devices in [24]. In both cases it is clear that while challenges remain, the improvement of both wide bandgap technologies that are of fundamental importance to power electronics has been dramatic.…”

Section: Barriers and Drivers For Adoption Of Wide Bandgap Power Electronicsmentioning

confidence: 99%

The Impact of ITRW: How Can WBG Power Semiconductors Break Through?

Ferreira

Wilson

2021

IEEE Open J. Power Electron.

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Increasing electrification means the world will need a projected total of 1000 TW-units per year in the next 10 years+. A new generation of wide bandgap power electronics devices are potentially 100-1000 times faster and 100-1000 lower loss than today's technology. Current market projections of massive growth (30%+) for WBG technology and market size into the 10s of $Billions mean that this is a vitally important technology that will shape the next several decades of the world. A key role of the International Technology Roadmap for Wide bandgap Power Semiconductors (ITRW) is to facilitate an acceleration in the R&D process for this new technology to fulfil its potential. This paper takes a holistic view of the future of wide bandgap power electronics, the challenges that needs to be addressed and how roadmaps can make a contribution to meeting these challenges.

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“…Reducing the gate voltage will also affect the switching transients, which can be characterized using a conventional double pulse test setup [15,16], as shown in Fig. 3.…”

Section: B Switching Transientsmentioning

confidence: 99%