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Variable, fixed, and hybrid sampling period approach for grid synchronization

机译：可变，固定和混合采样周期方法用于电网同步

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摘要

Almost all synchronization methods that can be found in the literature are based on a fixed sampling period approach and implemented by the addition of filter stages to the conventional Synchronous Reference Frame Phase Locked Loop (SRF-PLL) structure. A less common approach is the variable sampling period (VSP), used in methods like VSP-PLL. These methods allow implementing a synchronbus sampling period which automatically adapts the monitoring and control systems to the grid voltage and current, improving their processing performance. Notwithstanding the advantages of the synchronous sampling period approach, this operation principle is not commonly adopted in the literature since a proper design is required to avoid implementation problems and possible conflicts with other modules. This manuscript reviews the advantages of VSP approach, unveils similarities between VSP-PLL and SRF-PLL that allow improving the understanding of the former by comparing it to the latter, and provides guidelines for a proper implementation of a synchronous sampling method. In addition, a Hybrid Sampling Period (HSP) approach that combines the advantages of SRF-PLL and VSP-PLL is proposed. The three approaches are compared, the advantages of hybrid methods are discussed and the methodology for adopting the VSP and HSP approach in most fixed sampling period method is presented. Finally, the proposal is verified by experimental implementation. (C) 2016 Elsevier B.V. All rights reserved.
机译：可以在文献中找到的几乎所有同步方法都是基于固定采样周期方法，并且通过在常规的同步参考帧锁相环（SRF-PLL）结构中增加滤波器级来实现。不太常见的方法是可变采样周期（VSP），用于VSP-PLL等方法。这些方法允许实现同步总线采样周期，该周期可以使监视和控制系统自动适应电网电压和电流，从而改善其处理性能。尽管有同步采样周期方法的优点，但是由于需要适当的设计以避免实现问题以及与其他模块的可能冲突，因此在文献中并未普遍采用该操作原理。该手稿回顾了VSP方法的优势，揭示了VSP-PLL和SRF-PLL之间的相似之处，通过与后者进行比较，可以增进对前者的了解，并为正确实施同步采样方法提供了指导。另外，提出了一种结合了SRF-PLL和VSP-PLL优点的混合采样周期（HSP）方法。比较了这三种方法，讨论了混合方法的优点，并提出了在大多数固定采样周期方法中采用VSP和HSP方法的方法。最后，通过实验实施验证了该建议。 （C）2016 Elsevier B.V.保留所有权利。

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  • 来源
    《Electric power systems research》 |2017年第3期|23-31|共9页
  • 作者

    Carugati Ignacio; Orallo Carlos M.; Maestri Sebastian; Donato Patricio G.; Carrica Daniel;

  • 作者单位

    Inst Invest Cient & Tecnol Elect ICYTE, Mar Del Plata, Buenos Aires, Argentina|Univ Nacl Mar del Plata, Juan B Justo 4302, Mar Del Plata, Buenos Aires, Argentina|Consejo Nacl Invest Cient & Tecn, Ave Rivadavia 1917, Buenos Aires, DF, Argentina;

    Inst Invest Cient & Tecnol Elect ICYTE, Mar Del Plata, Buenos Aires, Argentina|Univ Nacl Mar del Plata, Juan B Justo 4302, Mar Del Plata, Buenos Aires, Argentina|Consejo Nacl Invest Cient & Tecn, Ave Rivadavia 1917, Buenos Aires, DF, Argentina;

    Inst Invest Cient & Tecnol Elect ICYTE, Mar Del Plata, Buenos Aires, Argentina|Univ Nacl Mar del Plata, Juan B Justo 4302, Mar Del Plata, Buenos Aires, Argentina|Consejo Nacl Invest Cient & Tecn, Ave Rivadavia 1917, Buenos Aires, DF, Argentina;

    Inst Invest Cient & Tecnol Elect ICYTE, Mar Del Plata, Buenos Aires, Argentina|Univ Nacl Mar del Plata, Juan B Justo 4302, Mar Del Plata, Buenos Aires, Argentina|Consejo Nacl Invest Cient & Tecn, Ave Rivadavia 1917, Buenos Aires, DF, Argentina;

    Inst Invest Cient & Tecnol Elect ICYTE, Mar Del Plata, Buenos Aires, Argentina|Univ Nacl Mar del Plata, Juan B Justo 4302, Mar Del Plata, Buenos Aires, Argentina|Consejo Nacl Invest Cient & Tecn, Ave Rivadavia 1917, Buenos Aires, DF, Argentina;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Phase locked loop; Grid disturbances; Sampling period;

    机译：锁相环;电网干扰;采样周期;

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