Evaluate I2t Capability of SiC MOSFETs in Solid State Circuit Breaker Applications

被引：0

作者：

Dong, Zhou ^{[1
]}

Ren, Ren ^{[1
]}

Wang, Fred ^{[1
,2
]}

机构：

[1] Univ Tennessee, Ctr Ultrawide Area Resilient Elect Energy Transmi, Knoxville, TN 37996 USA

[2] Oak Ridge Natl Lab, Knoxville, TN USA

来源：

2020 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2020年

基金：

美国国家科学基金会;

关键词：

solid state circuit breaker; i(2)t capability; overload protection; SiC MOSFETs; dynamic thermal impedance;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Solid State Circuit Breakers (SSCBs) protect equipment in power systems during short circuit and overload. Evaluating the i(2)t capability of devices can be critical to the overload protection design of the SSCB. Previous methods used the junction-to-case dynamic thermal impedance to estimate the i(2)t capability. However, the overall dynamic thermal impedance can be influenced by the thermal management. In this paper, we investigated the influence of the heatsink on the dynamic thermal performance of the power switch. More importantly, we presented an experimental method to characterize the i(2)t capability of devices under the worst operating condition for the SSCB. The on-resistance of the switch is measured to predict the junction temperature with an improved voltage sensing circuit. Then, by applying over-current pulses with various current levels and pulse lengths, the relationship between the i(2)t value of over-current pulses and the junction temperature rise of the device can be investigated. The presented method has been verified to characterize the i(2)t capability of a SiC power module.

引用

页码：6043 / 6048

页数：6

共 8 条

[1]

[Anonymous], 2010, 5114 JEDEC

[2]

Du Y, 2017, IEEE ENER CONV, P2512, DOI 10.1109/ECCE.2017.8096479

[3]

Górecki K, 2014, 2014 PROCEEDINGS OF THE 21ST INTERNATIONAL CONFERENCE ON MIXED DESIGN OF INTEGRATED CIRCUITS & SYSTEMS (MIXDES), P309, DOI 10.1109/MIXDES.2014.6872207

[4]

Guo YB, 2011, APPL POWER ELECT CO, P1290, DOI 10.1109/APEC.2011.5744759

[5] MAGIC OF I2T [J].

KAUFMANN, RH .

IEEE TRANSACTIONS ON INDUSTRY AND GENERAL APPLICATIONS, 1966, IGA2 (05) :384-&

[6]

Molligoda D.A, 2016 IEEE 2 ANN SO P, P1

[7]

Terorde M., 2015, Implementation of a Solid-State Power Controller for High-Voltage DC Grids in Aircraft

[8]

Zhang Y, 2014, IEEE ENER CONV, P1967, DOI 10.1109/ECCE.2014.6953660

← 1 →