公开(公告)号：US20040073387A1

公开(公告)日：2004-04-15

申请号：US10671561

申请日：2003-09-29

Applicant: ABB Research Ltd.

Inventor： Mats Larsson ,  Christian Rehtanz ,  Marek Zima

IPC: G06F019/00

CPC classification number: H02J3/00 ,  H02J2003/007 ,  Y02E60/728 ,  Y02E60/76 ,  Y04S10/265 ,  Y04S40/22

Abstract: In a method, computer program and apparatus for determining parameters of an equivalent circuit representing a transmission section of an electrical network, the transmission section (4) is representable as having at least two interfaces (5,6,7) with other sections (1,2,3) of the network, and the method comprises the steps of a) determining, for each of the interfaces (5,6,7), a voltage phasor ({overscore (v)}1,{overscore (v)}2,{overscore (v)}3) at the interface (5,6,7) and a phasor of a current ({overscore (i)}1,{overscore (i)}2,{overscore (i)}3) flowing through the interface (5,6,7), the measurements at the different interfaces (5,6,7) being made essentially simultaneously, and b) computing, from said voltage ({overscore (v)}1,{overscore (v)}2,{overscore (v)}3) and current ({overscore (i)}1, {overscore (i)}2,{overscore (i)}3)phasors, values of impedances ({overscore (Z)}T,{overscore (Z)}sh) constituting the equivalent circuit. This allows determining the equivalent circuit from a single set of essentially simultaneous measurements.

Abstract translation: 在一种用于确定表示电网的传输部分的等效电路的参数的计算机程序和装置中，传输部分（4）可表示为具有至少两个与其他部分（1）的接口（5,6,7） ，2,3）的网络，并且所述方法包括以下步骤：a）针对每个接口（5,6,7）确定电压相量（{overscore（v1，{overscore（v2，{overscore（ v3）在接口（5,6,7）处的一个相量和流过界面（5,6,7）的电流的相量（{overscore（i1，{overscore（i2，{overscore（i3））， 基本上同时进行不同的接口（5,6,7），以及b）从所述电压（{overscore（v1，{overscore（v2，{overscore（v3））和current（{overscore（i1，{overscore（i2 ，{过滤（i3）相量，阻抗值（{overcore（ZT，{overscore（Zsh））构成等效电路，这允许从单一组基本上同步确定等效电路 皮肤测量。