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首页> 外文期刊>IEEE Transactions on Industrial Electronics >A Selective Power Droop Control for Hybrid Interlinking Converter in AC/LVDC Microgrid
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A Selective Power Droop Control for Hybrid Interlinking Converter in AC/LVDC Microgrid

机译：AC / LVDC Microgrid中混合交互式转换器的选择性功率下降控制

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This article proposed a selective power droop control for a hybrid interlinking converter (HIC) in connecting ac grid with low-voltage DC (LVDC) grid. The direct connection to the LVDC means relatively lower converter capacity, lower switching loss, higher efficiency, and lower cost in HIC. However, the small capacity converter and large capacitive coupling impedance of HIC can lead to a relatively lower reactive power compensation range. Therefore, the practical overcapacity situation may be more likely to occur in HIC, which deteriorates the system performance. To address this issue, the unique P-delta and Q-P-V droops are proposed for HIC with automatic selective factors adjustment control. With the proposed control method, the HIC can effectively regulate active/reactive powers and improve power quality. To demonstrate the validity of the proposed structure and its control method, a 5-kW HIC is built, and results are presented for poor power quality situations. The results convincingly indicate that the proposed HIC is efficient and capable of low capacity advantage, multifunction control strategy, and overcapacity operation.
机译：本文提出了一种在用低压DC（LVDC）网格连接AC电网的混合互通转换器（HIC）的选择性功率下降控制。与LVDC的直接连接意味着相对较低的转换器容量，降低开关损耗，更高的效率和HIC成本较低。然而，小容量转换器和HIC的大电容耦合阻抗可能导致相对较低的无功补偿范围。因此，在HIC中可能更容易发生实际产能过流情况，这使得系统性能恶化。为解决此问题，为HIC提出了独特的P-Delta和Q-P-V Drops，具有自动选择性因素调整控制。利用所提出的控制方法，HIC可以有效地调节主动/无功功率并提高功率质量。为了证明所提出的结构及其控制方法的有效性，建造了5-kW HIC，并提出了出色的电能质量情况。结果表明，所提出的HIC是有效的，能够低容量优势，多功能控制策略和产能操作。

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