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Predictive Reliability Modelling and Characterization of Silicon Carbide Power MOS-Transistors in Grid-Connected Voltage Source Converters

并网电压源转换器中碳化硅功率 MOS 晶体管的预测可靠性建模和表征

基本信息

批准号：
EP/K008161/1
负责人：
Olayiwola Alatise
金额：
$ 12.71万
依托单位：
University of Warwick
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2013
资助国家：
英国
起止时间：
2013 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FK008161%2F1
关键词：
Predictive Reliability Modelling Characterization Silicon

项目摘要

Modern society's reliance on electrical energy is almost as critical as its reliance on food and water. In the UK, majority of the electrical energy is generated by electrical machines powered by fossil fuels. The principles of sustainability require that the energy consumption pattern changes since fuel reserves are finite. Furthermore, shifting away from fossil fuels is integral to the de-carbonisation of the economy which is critical for tackling global warming. To this end, substantial progress has been made on harnessing wind, solar and other renewable energy sources. However, change is also required in the manner in which electricity is transmitted and distributed through the grid. Renewable energy is usually intermittent and unpredictable, characteristics which make it unsuitable for direct connection with the electric grid. Renewable sources like wind and solar energy can only interface with the electrical grid through power electronics. Power electronics is required for the processing and conditioning of electrical energy so as to make it complaint with the grid. At the heart of power electronics, we have power semiconductor devices which have traditionally been fabricated out of silicon bipolar technology. However, silicon is reaching its fundamental limits in terms of energy density, hence, moving to advanced power materials like silicon carbide can give added impetus to the field of power electronics. Silicon carbide is a wide bandgap semiconductor with a higher critical electric field and higher thermal conductivity. In this project, the reliability of power converters implemented in Silicon-Carbide MOS-Transistor technology is investigated. These power converters will typically be used in off-shore wind-farms for power conversion in high voltage DC transmission (HVDC) systems. The converters can also be used in flexible AC transmission systems like STATCOMS (Static Compensators). The overall objective is to characterize the reliability of power converters implemented in silicon-carbide MOS transistors.

现代社会对电能的依赖几乎与对食物和水的依赖一样重要。在英国，大部分电能是由化石燃料驱动的电机产生的。由于燃料储备是有限的，可持续性原则要求改变能源消耗模式。此外，摆脱化石燃料是经济脱碳的重要组成部分，这对于应对全球变暖至关重要。为此，风能、太阳能和其他可再生能源的利用取得了实质性进展。然而，通过电网传输和分配电力的方式也需要改变。可再生能源通常具有间歇性和不可预测性，这些特性使其不适合直接与电网连接。风能和太阳能等可再生能源只能通过电力电子设备与电网连接。需要电力电子设备来处理和调节电能，以使其适应电网。作为电力电子的核心，我们拥有传统上采用硅双极技术制造的功率半导体器件。然而，硅在能量密度方面正在达到其基本极限，因此，转向碳化硅等先进功率材料可以为电力电子领域带来更多推动力。碳化硅是一种宽带隙半导体，具有较高的临界电场和较高的导热率。在该项目中，研究了采用碳化硅 MOS 晶体管技术实现的电源转换器的可靠性。这些电力转换器通常用于海上风电场，用于高压直流输电 (HVDC) 系统中的电力转换。该转换器还可用于灵活的交流输电系统，如 STATCOMS（静态补偿器）。总体目标是表征碳化硅 MOS 晶体管中实现的电源转换器的可靠性。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Modeling of turn-OFF transient energy in IGBT controlled silicon PiN diodes

IGBT 控制的硅 PiN 二极管的关断瞬态能量建模

DOI：
10.1109/epe.2014.6911007
发表时间：
2014
期刊：
影响因子：
0
作者：
Jahdi S
通讯作者：
Jahdi S

Analysis of power device failure under avalanche mode Conduction

DOI：
10.1109/icpe.2015.7168028
发表时间：
2015-06
期刊：
2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)
影响因子：
0
作者：
P. Alexakis;O. Alatise;J. Hu;S. Jahdi;J. González;L. Ran;P. Mawby
通讯作者：
P. Alexakis;O. Alatise;J. Hu;S. Jahdi;J. González;L. Ran;P. Mawby

Investigating the reliability of SiC MOSFET body diodes using Fourier series modelling