Pulsar Based Alternative Timing Source for Grid Synchronization and Operation
Pulsar Based Alternative Timing Source for Grid Synchronization and Operation
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用于电网同步和操作的基于 Pulsar 的替代定时源
DOI：
10.1109/access.2020.3015202
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发表时间：
2020
期刊：
影响因子：
3.9
通讯作者：
Rooke, Sterling Sean
中科院分区：
文献类型：
--
作者：
Yin, He;Liu, Yilu;Fuhr, Peter L.;Rodriguez, Marissa Morales;Morganti, Margaret;Monday, William;Richards, Jason;Rooke, Sterling Sean
多年来，人们一直在考虑是否需要替代GPS的授时源。电力系统仪表和控制系统对GPS授时的依赖是本文研究的基础。在基于gps的时钟源的上下文中，回顾了与网格定时需求相关的问题。主要研究的是利用毫秒旋转中子星、脉冲星作为替代时间源的可能性。提出了一种利用稳定、精确的脉冲星信号进行网格授时的仪器（称为脉冲星授时仪，PBTI）的设计方案。所描述的PBTI设计在逻辑上分为软件和硬件两部分。在软件中进行灵活的信号处理，将脉冲星的原始脉冲数据转换为可直接用于电力系统组件和应用的脉冲每秒（PPS）信号。PBTI设计的硬件方面集中在天线要求上，特别关注所需的尺寸和指向/跟踪需求、后端、滤波器、放大器和信号发生器设计。给出了总体框图和软硬件设计的详细说明。最后，讨论了脉冲星授时仪器的潜在应用前景和存在的问题。
The need for timing sources that are alternatives to GPS has been under consideration for years. The reliance of power systems instrumentation and control systems on GPS timing serves as the basis for the study reported in this paper. The issues associated with grid timing requirements are reviewed within the context of a GPS-based clock source. Of principle investigation is the possibility of using millisecond rotation neutron stars, pulsars, as the alternative time source. A design of an instrument (referred to as a pulsar based timing instrument, PBTI) that would use stable and accurate pulsar signals for grid timing is presented. The described PBTI design has been logically separated into software and hardware segments. Flexible signal processing is performed in software which will transfer the raw pulse data from the pulsars into a pulse per second (PPS) signal which can be directly utilized in the power system components and applications. The hardware aspects of the PBTI design concentrate on the antenna requirements, with specific concern associated with the required size and pointing/tracking needs, back-end, filters, amplifiers, and signal generator design. An overall block diagram and the detailed descriptions of both the software and hardware designs are presented. Finally, the potential future applications and problems of the pulsar based timing instrument are discussed.
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DOI：
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发表时间：
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