本文關(guān)鍵詞： 多源選擇策略 余數(shù)動(dòng)態(tài)分?jǐn)?自適應(yīng)精確守時(shí) 脈沖穩(wěn)定輸出 相位與頻率動(dòng)態(tài)調(diào)整　出處：《電力系統(tǒng)自動(dòng)化》2017年12期 　論文類(lèi)型：期刊論文

【摘要】：為實(shí)現(xiàn)時(shí)間同步裝置高穩(wěn)定輸出,針對(duì)多時(shí)源選擇、守時(shí)算法、動(dòng)態(tài)調(diào)整這3個(gè)關(guān)鍵環(huán)節(jié)提出了方法及實(shí)現(xiàn)步驟。在多時(shí)源選擇方面,提出基于聚類(lèi)算法的外部獨(dú)立時(shí)源選擇策略,對(duì)關(guān)聯(lián)時(shí)源的品質(zhì)輸出進(jìn)行了分析;在守時(shí)算法方面,提出了基于余數(shù)動(dòng)態(tài)分?jǐn)偟淖赃m應(yīng)精確守時(shí)算法,并分析了晶振參數(shù)對(duì)守時(shí)精度的影響;在動(dòng)態(tài)調(diào)整方面,提出了基于硬件實(shí)現(xiàn)的頻率與相位實(shí)時(shí)跟蹤方法,當(dāng)外部時(shí)源與本地時(shí)源相差較大時(shí),本地時(shí)源頻率與相位以小步長(zhǎng)勻速逼近外部時(shí)源,并趨于穩(wěn)定。試驗(yàn)證實(shí),所提方法在守時(shí)精度與相位和頻率動(dòng)態(tài)調(diào)整方面取得了較好的效果,實(shí)現(xiàn)了時(shí)間的高穩(wěn)定性輸出。
[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.
【作者單位】： 許繼電氣股份有限公司;
【分類(lèi)號(hào)】：P127.1;TM76

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本文編號(hào)：1514675