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首页> 外文会议>IEEE Energy Conversion Congress and Exposition >Reduced common mode voltage based DC-bus voltage balancing algorithm for three-level neutral point clamped (NPC) inverter drive
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Reduced common mode voltage based DC-bus voltage balancing algorithm for three-level neutral point clamped (NPC) inverter drive

机译：用于三电平中性点钳位（NPC）逆变器驱动的基于共模电压的降低的直流母线电压平衡算法

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摘要

A reduced common mode voltage (CMV) based DC-link voltage balancing strategy is proposed for a neutral point clamped (NPC) three-level inverter with permanent magnet synchronous machine. Compared to the earlier proposed strategy, it completely eliminates the V/2 corresponding CMV by eliminating the two zero voltage vectors (PPP, NNN) from the space vector switching sequences. Hence, it uses only one zero voltage (OOO) vector with the other redundant voltage vectors to produce the reference vector in inner subsectors. Detailed simulation and experimental studies are also carried out to show the effectiveness of the proposed system with DC-link voltage balancing ability. Harmonic distortions are also compared with the previously proposed scheme. Dspace based real time operating system is used for real time implementation with 6.0 kW surface PMSM.
机译：针对具有永磁同步电机的中性点钳位（NPC）三电平逆变器，提出了一种基于降低共模电压（CMV）的直流母线电压平衡策略。与较早提出的策略相比，它通过从空间矢量切换序列中消除两个零电压矢量（PPP，NNN），完全消除了V / 2对应的CMV。因此，它仅使用一个零电压（OOO）向量和其他冗余电压向量在内部子扇区中生成参考向量。还进行了详细的仿真和实验研究，以证明所提出的具有直流母线电压平衡能力的系统的有效性。谐波失真也与先前提出的方案进行了比较。基于Dspace的实时操作系统用于6.0 kW表面PMSM的实时实施。

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