A PWM Scheme for a Fault-Tolerant Three-Level Quasi-Switched Boost T-Type Inverter

被引：19

作者：

Do, Duc-Tri ^{[1
]}

Nguyen, Minh-Khai ^{[2
]}

Quach, Thanh-Hai ^{[1
]}

Tran, Vinh-Thanh ^{[1
]}

Blaabjerg, Frede ^{[3
]}

Vilathgamuwa, D. Mahinda ^{[2
]}

机构：

[1] Ho Chi Minh City Univ Technol & Educ, Fac Elect & Elect Engn, Ho Chi Minh City 700000, Vietnam

[2] Queensland Univ Technol, Sch Elect Engn & Comp Sci, Brisbane, Qld 4000, Australia

[3] Aalborg Univ, Dept Energy Technol, DK-9100 Aalborg, Denmark

来源：

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2020年 / 8卷 / 03期

关键词：

Inverters; Circuit faults; Fault tolerance; Fault tolerant systems; Modulation; Legged locomotion; Topology; Boost inverter; fault tolerance; multilevel inverter; shoot-through (ST); single-stage; Z-source inverter; MULTILEVEL CONVERTERS; STRATEGY; DESIGN;

D O I：

10.1109/JESTPE.2019.2922687

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a new optimal pulsewidth modulation (PWM) scheme for a three-level quasi-switched boost T-type inverter (TL qSBT(2)I) under normal and failure modes is proposed. The proposed method reveals its semiconductor fault tolerance capability in open-circuit fault condition situations as described in this paper. The PWM control algorithm for the fault-tolerant qSBT(2)I is implemented by selecting appropriate values for the modulation index, shoot-through (ST) duty cycle, and duty cycles of two additional switches. The steady-state analysis and operating principles of the fault-tolerant qSBT(2)I are presented. A laboratory prototype was built to verify the operating principles of the qSBT(2)I with the proposed modulation scheme before and after fault conditions.

引用

页码：3029 / 3040

页数：12

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