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Sub-module capacitor voltage regulation of modular multilevel converter based traction propulsion system with medium frequency isolation
IEEE Transactions on Industry Applications ( IF 4.4 ) Pub Date : 2021-01-01 , DOI: 10.1109/tia.2020.3036327 Bishwajyoti Purkayastha , Tanmoy Bhattacharya
IEEE Transactions on Industry Applications ( IF 4.4 ) Pub Date : 2021-01-01 , DOI: 10.1109/tia.2020.3036327 Bishwajyoti Purkayastha , Tanmoy Bhattacharya
This article presents a traction converter configuration using modular multilevel converter (MMC) for interfacing the single-phase ac railway power line with the multiple traction motors of an electric locomotive. The conventional grid frequency step-down transformer used in electric locomotive is replaced by a medium frequency transformer (MFT). The system consists of two sets of MMCs: one to interface the power line with the MFT, and another to interface the MFT with the traction motor. The overall control philosophy of the system is presented. Furthermore, a control technique is proposed that reduces the peak to peak ripple voltage of the submodule capacitors of the motor side MMC. The system is simulated in MATLAB Simulink. The proposed control technique for the motor side MMC is experimentally verified in a laboratory prototype.
中文翻译:
基于模块化多电平转换器的中频隔离牵引推进系统的子模块电容器调压
本文介绍了一种牵引变流器配置,它使用模块化多电平变流器 (MMC) 将单相交流铁路电力线与电力机车的多个牵引电机连接起来。电力机车中使用的常规电网频率降压变压器被中频变压器(MFT)取代。该系统由两组 MMC 组成:一组将电力线与 MFT 连接,另一组将 MFT 与牵引电机连接。介绍了系统的总体控制原理。此外,还提出了一种控制技术,可降低电机侧 MMC 子模块电容器的峰峰值纹波电压。该系统在 MATLAB Simulink 中进行仿真。所提出的电机侧 MMC 控制技术在实验室原型中得到了实验验证。
更新日期:2021-01-01
中文翻译:
基于模块化多电平转换器的中频隔离牵引推进系统的子模块电容器调压
本文介绍了一种牵引变流器配置,它使用模块化多电平变流器 (MMC) 将单相交流铁路电力线与电力机车的多个牵引电机连接起来。电力机车中使用的常规电网频率降压变压器被中频变压器(MFT)取代。该系统由两组 MMC 组成:一组将电力线与 MFT 连接,另一组将 MFT 与牵引电机连接。介绍了系统的总体控制原理。此外,还提出了一种控制技术,可降低电机侧 MMC 子模块电容器的峰峰值纹波电压。该系统在 MATLAB Simulink 中进行仿真。所提出的电机侧 MMC 控制技术在实验室原型中得到了实验验证。