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A Modified Inverter Topology for Fault-Tolerant DTC Induction Motor Drive
International Journal of Electronics ( IF 1.3 ) Pub Date : 2020-06-22 , DOI: 10.1080/00207217.2020.1756445
Y. Bhaskar S. S. Gupta 1 , S. Srinivasa Rao 1
Affiliation  

ABSTRACT A modified fault-tolerant voltage source inverter-fed induction motor drive to maintain normal operation during open-circuit or short-circuit of power devices is proposed. The proposed inverter topology consists of a single capacitor at dc-link to eliminate the voltage-balancing issue in conventional fault-tolerant topology and a boost converter at the front end of inverter to operate the drive in full-rated condition during post-fault operation. Current control technique for boost converter and direct torque control for induction motor drive is implemented. The proposed topology reduces the stator current THD, torque and stator flux ripple when compared with the conventional fault-tolerant topology. Analysis of the proposed converter topology, modelling, simulation and experimental results are presented and also compared with the conventional fault-tolerant topology to highlight the eminence of the proposed scheme.

中文翻译:

用于容错 DTC 感应电机驱动的改进逆变器拓扑结构

摘要 提出了一种改进的容错电压源逆变器供电感应电机驱动器,以在功率器件开路或短路期间保持正常运行。建议的逆变器拓扑包括直流链路上的单个电容器以消除传统容错拓扑中的电压平衡问题,以及逆变器前端的升压转换器在故障后运行期间以全额定条件运行驱动器. 实现了升压转换器的电流控制技术和感应电机驱动的直接转矩控制。与传统的容错拓扑相比,所提出的拓扑减少了定子电流 THD、转矩和定子磁链纹波。分析所提出的转换器拓扑结构、建模、
更新日期:2020-06-22
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