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Implementation of a 84-pulse voltage-source converter for special applications

机译:实现用于特殊应用的84脉冲电压源转换器

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摘要

This study presents the experimental results on the implementation of a 84-pulse voltage-source converter (VSC), assembled by combining a 12-pulse VSC in conjunction with an asymmetric single-phase seven-level converter. The phaselocked- loop strategy used ensures the determination of the system??s frequency and phase-angle of the fundamental positive sequence voltage of the controlled AC bus. The injection transformer added to the configuration allows the total harmonic distortion on the VSC's output to be compliant with the IEEE STD 519-1992, for its use in special applications. The amount of switches and capacitors employed on the implementation, and the wide turn ratios allowed to the re-injection transformer, constitute an attractive array in terms of cost and reduced output voltage distortion and notching.
机译:这项研究提出了一个84脉冲电压源转换器(VSC)的实现的实验结果,该转换器是通过将12脉冲VSC与不对称单相七电平转换器相结合而组装而成的。所采用的锁相环策略可确保确定系统的频率和受控交流母线基本正序电压的相位角。添加到配置中的注入变压器允许VSC输出上的总谐波失真符合IEEE STD 519-1992,适用于特殊应用。实施中使用的开关和电容器的数量,以及允许再注入变压器使用的宽匝数比,在成本,降低的输出电压失真和陷波方面构成了一个有吸引力的阵列。

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