In order to satisfy some requirement , the device can locate the fault using single - terminal data 同時(shí)為了滿足某些需要,測(cè)距裝置也提供單端測(cè)距功能。
Because conventional single - terminal method of fault location ca n ' t eliminate the influence of fault resistance and the remote in - feed , its utility is limited 單端測(cè)距法由于存在難以消除過渡阻抗和對(duì)端系統(tǒng)阻抗的影響這一缺陷,使其應(yīng)用受到限制。
Only using data of single - terminal , the algorithm can eliminate the influences of the fault resistances and it need n ' t resolve the complicated equation of long line 這種方法僅采用線路的單端數(shù)據(jù),不受故障過渡電阻的影響,無需求解復(fù)雜的長(zhǎng)線方程。
This thesis presents a single - terminal fault location technique that is used together with recloser . the technique takes advantage of reclosing of single - terminal recloser to eliminate the influence of the remote source impedance . a distributed parameter line model is used for the proposed algorithm , thus the technique can be used in hv transmission line 為了克服這一缺點(diǎn),本文提出了與自動(dòng)重合閘配合使用的單端故障測(cè)距方法,根據(jù)電力系統(tǒng)的運(yùn)行特點(diǎn),利用故障線路在試送電時(shí)自動(dòng)重合閘的單端重合狀態(tài)來消除對(duì)端系統(tǒng)的影響,測(cè)距算法建立在分布參數(shù)模型基礎(chǔ)上,使其可應(yīng)用于高壓輸電線路。