电源学报2016，Vol.14Issue(4)：66-72,7.DOI:10.13234/j.issn.2095-2805.2016.4.66
SiC MOSFET在航空静止变流器中的应用研究
Application and Investigation of SiC MOSFET in Aeronautical Static Inverters
葛小伟 1张瞾 1曹鸿 1谢少军1
作者信息
- 1. 南京航空航天大学自动化学院，南京 211106
- 折叠
摘要
Abstract
The aeronautic static inverters(ASIs)which convert the airborne DC bus voltage to constant 400 Hz AC voltage are critical to the requirements of power density, efficiency, environment adaptability, reliability and electrical properties. The SiC semiconductor devices with high switching speed and good performance under high temperature have good promise to be applied in ASIs, but now there is still less research on using the wide range band gap power switches in ASIs. First, the key issues of applying SiC MOSFETs to ASIs is analyzed based on the typical ASI topology in this paper. Then considering the inverter cascaded by two half bridges, the losses of Si MOSFET-based and SiC MOSFET-based are compared. The comparison results show that the SiC MOSFET inverter’s total loss is less even though its on-state loss is high and the efficiency merit of SiC MOSFET inverters is more prominent with the switching frequency increasing. Finally, to meet the requirements of high switching frequency SiC MOSFET inverters, a drive circuit which adapts to high switching frequency and wide range PWM signals is designed. a two-stage cascaded 115 V/400 Hz half-bridge inverter rated at 500 VA is developed to validate the feasibility of the ASI with SiC MOSFETs.关键词
航空静止变流器/SiC MOSFET/级联逆变器/损耗分析/驱动电路Key words
aeronautical static inverter/SiC MOSFET/cascade inverter/loss analysis/drive circuit分类
信息技术与安全科学引用本文复制引用
葛小伟,张瞾,曹鸿,谢少军..SiC MOSFET在航空静止变流器中的应用研究[J].电源学报,2016,14(4):66-72,7.
