The Vienna-type rectifier is widely used in many applications due to the merits of controllable dc-link voltage, realizable three-level operation, and compact size. However, the input currents near the zero-crossing point are distorted inevitably due to its special topology. Based on the analysis of the causes of current distortion, a lagging reactive power compensation method is proposed. The $d$ – $q$ -axis current models are developed, and two finite-time current controllers are designed to enhance the interference suppression performance. The asymptotic convergence of the $d$ – $q$ -axis current systems is proved, respectively. In addition, neutral point potential balancing is achieved by employing a proportional controller without increasing the cost of the system. The validity of the proposed hybrid control strategy has been verified by simulation and experimental results. Compared with the conventional strategy, this new hybrid control strategy can help to achieve excellent performance and stronger disturbance rejection.

中文翻译：

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基于滞后无功补偿的维也纳式整流器混合控制策略

由于可控直流链路电压，可实现三电平操作和尺寸紧凑的优点，维也纳式整流器被广泛用于许多应用中。但是，过零点附近的输入电流由于其特殊的拓扑结构而不可避免地会失真。在分析电流畸变原因的基础上，提出了一种滞后无功补偿方法。这 $ d $ – $ q $ 开发了轴电流模型，并设计了两个有限时间电流控制器以增强干扰抑制性能。的渐近收敛 $ d $ – $ q $ 轴电流系统分别被证明。另外，通过采用比例控制器可以实现中性点电位平衡，而不会增加系统成本。仿真和实验结果验证了所提混合控制策略的有效性。与传统策略相比，这种新的混合控制策略可以帮助实现出色的性能和更强的抗扰性。