Application of BeiDou RNSS timing technology in smart grid lightning locating system

Hao ZHANG; Hongzhen YANG; Weiping SHAO; Jiming YAO

doi:10.11959/j.issn.1000-0801.2019032

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Application of BeiDou RNSS timing technology in smart grid lightning locating system

Power Informatization Column | 更新时间：2024-06-05

- Application of BeiDou RNSS timing technology in smart grid lightning locating system
- Telecommunications Science Vol. 35, Issue 2, Pages: 134-141(2019)
- 作者机构：
  
  1. 全球能源互联网研究院有限公司，江苏南京 210003
  2. 国网浙江省电力有限公司，浙江杭州 310007
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2019032
  CLC： TN927
- Published Online：2019-02，
  
  Published：20 February 2019
- 稿件说明：
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Hao ZHANG, Hongzhen YANG, Weiping SHAO, et al. Application of BeiDou RNSS timing technology in smart grid lightning locating system[J]. Telecommunications science, 2019, 35(2): 134-141.
DOI：

Hao ZHANG, Hongzhen YANG, Weiping SHAO, et al. Application of BeiDou RNSS timing technology in smart grid lightning locating system[J]. Telecommunications science, 2019, 35(2): 134-141. DOI： 10.11959/j.issn.1000-0801.2019032.

摘要

智能电网雷电定位系统是一项重要的电力业务，其雷电定位精度很大程度上取决于时间同步的精度。研究并比较了3种北斗授时方式，发现RNSS授时方式最适合应用于雷电定位系统。进而研究了RNSS授时的原理和特点，并提出了一种低成本的用户终端授时软硬件架构和算法，利用经过卡尔曼滤波的北斗秒脉冲信号，通过PID算法，校准用户时钟并调节压控温补晶振，使得用户终端时间和GNSS时间的偏差在任何时刻都控制在100 ns以下，以满足雷电定位系统的精度要求。

Abstract

The smart grid lightning location system is an important power service

and its lightning location accuracy largely depends on the accuracy of time synchronization.Three kinds of BeiDou timing methods were studied and compared

and the RNSS timing method was found to be most suitable for lightning location systems.Furthermore

the principle and characteristics of RNSS timing were studied

and a low-cost user terminal timing hardware and software architecture and algorithm were proposed.The Kalman filter-based BeiDou second pulse signal was used to calibrate the user clock and adjust the voltage through the PID algorithm.The temperature-controlled crystal oscillator made the deviation between the user terminal time and the GNSS time below 100 ns at any time to meet the accuracy requirements of the lightning positioning system.

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references

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