In recent years, the reliability requirements of active neutral-point-clamped (ANPC) three-level converter are getting higher and higher with its large-scale application. In order to overcome the problem of the limited fault-tolerant capability of the basic ANPC three-level converter when compound faults occur, an improved fault-tolerant topology based on component sharing was proposed in this paper. Compared with the basic ANPC three-level converter topology, two bidirectional thyristors and a double-pole double-throw switch are added to each phase, which can realize Fault-Tolerant Control (FTC) for multiple fault types and greatly improve the reliability with small additional costs. The corresponding self-diagnosis FTC algorithm composed of topology reconfiguration module, switch state generation module, and PWM output control module is also put forward. With the real-time generation of switch state, the reconfiguration of fault-tolerant topology is easy to realize and adaptable. Finally, the effectiveness and feasibility of the proposed topology and FTC algorithm are verified by simulation and experimental results.


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    Title :

    Research on the Improved Fault-Tolerant Control of ANPC Three-Level Converter


    Additional title:

    Lect. Notes Electrical Eng.


    Contributors:
    Jia, Limin (editor) / Qin, Yong (editor) / Liu, Baoming (editor) / Liu, Zhigang (editor) / Diao, Lijun (editor) / An, Min (editor) / Zhu, Qinyue (author) / Wang, Chen (author) / Tan, Xitang (author) / Zhang, Pengcheng (author)

    Conference:

    International Conference on Electrical and Information Technologies for Rail Transportation ; 2019 ; Qingdao, China October 25, 2019 - October 27, 2019



    Publication date :

    2020-04-08


    Size :

    13 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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