Application of Soft-Switching Cell With Inherent Redundancy Properties for Enhancing the Reliability of Boost-Based DC-DC Converters

作     者：Faraji, Rasoul Ding, Lei Rahimi, Tohid Kheshti, Mostafa 

作者机构：Shandong Univ Minist Educ Sch Elect Engn Key Lab Power Syst Intelligent Dispatch & Control Jinan 250061 Peoples R China 

出 版 物：《IEEE TRANSACTIONS ON POWER ELECTRONICS》 (动力电子学汇刊)

年 卷 期：2021年第36卷第11期

页      面：12342-12354页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：China Postdoctoral Science Foundation [2019M662356, 2019M662357] National Natural Science Foundation of China Innovation Project of Shandong Province Project of Shandong Province New and Old Kinetic Energy Conversion 

主　　题：Switches Circuit faults Soft switching Fault tolerant systems Reliability Integrated circuit reliability Thyristors Active soft-switching cell boost dc-dc converter fault-tolerant capability inherent redundancy feature reliability 

摘      要：In this article, the inherent fault-tolerant capability of the soft-switching cell for boost-based dc-dc converters is investigated. The main switch of boost-based dc-dc converters withstands high-temperature stress, which is expected to be failed with a higher probability than other devices. Providing soft-switching condition for the main switch and employing fault-tolerant capability are effective approaches to solve this problem. When a fault occurs for the main switch, the proposed converter can be reconfigured such that the soft-switching cell can change its duty to continue the normal operation of the converter without interruption. Inherent redundancy, low failure rate, high integration, and high efficiency are the specifications of the presented converter. The reliability analyses are presented and the functionality of the active soft-switching cell to provide soft-switching condition and fault-tolerant capability are verified by experimental results.