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Cost Effective Single-Phase DSTATCOM for Low Power Applications

机译：具有成本效益的单相DSTATCOM，适用于低功耗应用

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摘要

In this article, a single-phase Distribution Static Compensator (DSTATCOM) with reduced dc-link voltage is proposed for power quality improvement in a distribution system. Generally, the dc-link voltage of DSTATCOM is maintained twice the peak of Point of Common Coupling (PCC) voltage by voltage regulation loop. But, the dc-link voltage is maintained itself without voltage regulation loop in the proposed method. For this case, the required dc-link voltage magnitude is less when compared to conventional method. Under predefined load conditions such as agriculture pump set loads, this less voltage is sufficient to give satisfactory performance. Therefore, the rating of DSTATCOM is reduced and thereby the cost of system is reduced. The proposed method enables compensation of reactive power and mitigation of source current harmonics in a distribution system for low power applications. The advantages of the proposed method are elimination of dc voltage sensing elements, minimization of switching loss of Voltage Source Inverter (VSI) and cost effective. The proposed single-phase DSTATCOM performance is demonstrated through MATLAB/simulink and validated by experimental results with agriculture pump set load.
机译：在本文中，为降低配电系统的电能质量，提出了一种直流母线电压降低的单相配电静态补偿器（DSTATCOM）。通常，通过稳压电路将DSTATCOM的直流链路电压维持在公共耦合点（PCC）电压峰值的两倍。但是，在所提出的方法中，直流链路电压本身保持不变，而没有稳压环路。对于这种情况，与常规方法相比，所需的直流母线电压幅度较小。在预定义的负载条件下，例如农用泵的设定负载，此较小的电压足以提供令人满意的性能。因此，降低了DSTATCOM的等级，从而降低了系统成本。所提出的方法能够在低功率应用的配电系统中补偿无功功率并减轻源电流谐波。所提出的方法的优点是消除了直流电压感测元件，最小化了电压源逆变器（VSI）的开关损耗并且具有成本效益。通过MATLAB / simulink演示了所提出的单相DSTATCOM性能，并通过农业泵设定负载的实验结果进行了验证。

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