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
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
收藏
页码:3029 / 3040
页数:12
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