This algorithm can be executed independently of the source impedance and fault resistance with an error less than 0 . 5 percent 該算法原理簡單,求解方便,仿真結(jié)果表明,算法具有較高的精度,最大測距誤差小于0 . 5 % ,能夠滿足工程要求。
The temperature rises and the dc voltage are proportional to the power dissipated , which is equal to the power of the source being measured if the input impedance is suitably matched to the source impedance 熱偶冷熱結(jié)之間的溫度差和熱電勢均正比于耗散在ta2n電阻上的微波功率,如果熱偶的工作電阻與同軸傳輸系統(tǒng)電阻匹配適當,該功率就等于被測源的功率。
Second , since input bias currents are not always small and can exhibit different polarities , source impedance levels should be carefully matched to minimize additional input bias current - induced offset voltages and increased distortion 其次,因為輸入偏置電流不一定都小,且可能體現(xiàn)不同的極性,而且源阻抗水平應(yīng)該仔細地進行匹配,以將輸入偏置電流引起額外失調(diào)電壓和增加的畸變減到最小。
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,本文提出了與自動重合閘配合使用的單端故障測距方法,根據(jù)電力系統(tǒng)的運行特點,利用故障線路在試送電時自動重合閘的單端重合狀態(tài)來消除對端系統(tǒng)的影響,測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。