时间同步装置的高稳定性输出设计方法

发布时间：2018-02-16 04:37

本文关键词： 多源选择策略余数动态分摊自适应精确守时脉冲稳定输出相位与频率动态调整　出处：《电力系统自动化》2017年12期 　论文类型：期刊论文

【摘要】：为实现时间同步装置高稳定输出,针对多时源选择、守时算法、动态调整这3个关键环节提出了方法及实现步骤。在多时源选择方面,提出基于聚类算法的外部独立时源选择策略,对关联时源的品质输出进行了分析;在守时算法方面,提出了基于余数动态分摊的自适应精确守时算法,并分析了晶振参数对守时精度的影响;在动态调整方面,提出了基于硬件实现的频率与相位实时跟踪方法,当外部时源与本地时源相差较大时,本地时源频率与相位以小步长匀速逼近外部时源,并趋于稳定。试验证实,所提方法在守时精度与相位和频率动态调整方面取得了较好的效果,实现了时间的高稳定性输出。
[Abstract]:In order to realize the high stable output of the time synchronization device, this paper puts forward the methods and implementation steps for the three key links of multi-time source selection, punctuality algorithm and dynamic adjustment. An external independent time-source selection strategy based on clustering algorithm is proposed, and the quality output of associated time-source is analyzed. In the aspect of time-keeping algorithm, an adaptive accurate time-keeping algorithm based on dynamic allocation of residue is proposed. In the aspect of dynamic adjustment, a real-time tracking method of frequency and phase based on hardware is proposed, when the difference between external time source and local time source is large, The frequency and phase of the local time source approach the external time source at a small step, and tend to be stable. Experiments show that the proposed method has achieved good results in terms of timing accuracy, phase and frequency dynamic adjustment, and achieved high stability output of time.
【作者单位】：许继电气股份有限公司;
【分类号】：P127.1;TM76

【相似文献】