ATP中变压器的参数怎么设置？各代表什么意思？

dongyangyang · 发表于 2009-11-18 11:31:00

马上加入，结交更多好友，共享更多资料，让你轻松玩转电力研学社区！

您需要登录才可以下载或查看，没有账号？立即加入

×

主要是其中的I0，F0和Rm各代表什么意思，谢谢赐教

wang1940 · 发表于 2016-12-31 11:00:43

楼主加油，我们都看好你哦。

ziwaichengxiang · 发表于 2020-3-11 21:39:12

淡定，淡定，淡定……

huangccz · 发表于 2009-11-18 11:36:55

Name : SatTrafo - General saturable transformer. 3 phase. 2 or 3 windings.
   Wye, Delta with all phase shifts. Auto, and Zigzag  with most common configurations.
Card : BRANCH
Data : Io= Current [A] through magnetizing branch (MB) at steady state.
      Fo= Flux [Wb-turn] in MB at steady state.
            The pair Io, Fo defines the inductance in MB at steady state.
      Rm= Resistance in magnetizing branch in [ohm]. 5-leg core or 3-leg shell.
            The magnetizing branch is always connected to the PRIMARY winding and Rm is referred to this voltage.
      R0= Reluctance of zero-sequence air-return path for flux. 3-leg core-type
      Vrp= Rated voltage in [V] primary winding (only the voltage ratios matter).
      Rp= Resistance in primary winding in [ohm].
      Lp= Inductance in primary winding in [mH] if Xopt.=0
            Inductance in primary winding in [ohm] if Xopt.=power freq.
      Vrs= Rated voltage in [V] secodary winding.
      Rs= Resistance in secondary winding in [ohm].
      Ls= Inductance in secondary winding in [mH] if Xopt.=0
            Inductance in secondary winding in [ohm] if Xopt.=power freq.
      Vrt= Rated voltage in [V] tertiary winding.
      Rt= Resistance in tertiary winding in [ohm].
      Lt= Inductance in tertiary winding in [mH] if Xopt.=0
            Inductance in tertiary winding in [ohm] if Xopt.=power freq.
      RMS= unchecked: Current/Flux characteristic must be entered.
            checked: Irms/Urms characteristic must be entered.
                     ATPDRAW performs a SATURATION calculation.
3-leg core = checked: 3-leg core type transformer assumed. TRANSFORMER THREE PHASE
            unchecked: 5-leg or 3-leg shell type assumed. TRANSFORMER.
   3-wind.= turn on tertiary winding.
Output specified the magnetization branch output (power&energy not supported).
Node :    P= Primary side. 3-phase node.
         S= Secondary side. 3-phase node.
      PN= Neutral point primary side.
      SN= Neutral point secondary side.
         T= Tertiary side. 3-phase node.
      TN= Neutral point tertiary side.
      Sat= Internal node, connection of the magnetization circuit with saturation.
The coupling is specified for each winding, with four coupling options: Y, D, A, Z
  All phase shifts are supported.
Special note on Auto-transformers:
  The primary and secondary windings must be of coupling A(uto).
Special note on ZigZag-transformers:
  For this type the user can specify a phase shift in the range <-60,0>&<0,60>.
  Note that the values -60, 0 and +60 degrees are illegal (as one of the winding parts degenerates).
  The phase shift is given relative to a Y-coupled winding.
  If the primary winding is Zigzag-coupled, all other windings will be shifted with it.
  If the primary winding is D-coupled, 30 deg. must be added/subtracted to the phase shifts.
  For negative phase shifts the phase A winding starts on leg 1 (called z with voltage Uz)
  and continues in the opposite direction on leg 3 (called y with voltage Uy).
  For negative phase shifts the phase A starts on leg 1
  and continues in the opposite direction on leg 2.
  The normal situation is to specify a phase shift of +/- 30 deg.
  in which case the two parts of the winding have the same voltage level and leakage impedance.
  In general the ratio between the second part of the winding Uy and the first part Uz is
  n=Uy/Uz=sin(a)/sin(60-a) where a is absolute value of the phase shift.
  This gives:
  Uz=U/(cos(a)+n*cos(60-a)) and Uy=Uz*n
  Lz=L/(1+n*n) and Ly=Lz*n*n, Rz=R/(1+n) and Ry=Rz*n
  where Lz and Ly are the leakage inductance of each part of the winding (L is the total leakage inductance)
  and Rz and Ry are the winding resistance of each winding part (R is the total).
  The parameters Uz, Uy, Zz, and Zy are automatically calculated by ATPDraw based on the
  equivalent parameters U and Z and the phase shift, a.

Points: It's possible to enter 9 points on the current/flux characteristic.
      The required menu is performed immedeately after the input menu.
      The points should be entered as increasingly larger values.
      The point (0,0) is not permitted (added internally in ATP).
RuleBook: IV.E.1-2 or 3.

shuangyuer818 · 发表于 2009-12-8 19:06:35

楼上的太囧了。。。。

ag9914 · 发表于 2009-12-8 21:11:19

I0和F0是稳态运行（不考虑磁饱和时）用来确定励磁支路感应系数的一组值可以不填
Rm对应变压器的铁耗用变压器铭牌上的空载试验算出的电导和电纳值（计算出的单位为S要转化成欧姆）取模值填进去即可
建议大家多互相帮助回答问题时计量别给没有实质帮助的回答

ag9914 · 发表于 2009-12-8 21:32:18

刚才可能理解错了上面回答的RM是参数Rmag

dongchch · 发表于 2009-12-14 23:09:54

非常感谢ag9914的讲解

hhh1108 · 发表于 2010-1-5 09:27:38

回复 5# ag9914

你好，请问为什么我的ATPDraw中找不到这个变压器的模型呢 Sat.△/Y 3ph TRADY_3

能不能用Ideal 3phase TRAFO_I3 这个模型代替啊是不是ATP版本的问题啊希望阁下能够不吝赐教

hhh1108 · 发表于 2010-1-5 09:29:34

你好，请问为什么我的ATPDraw中找不到这个变压器的模型呢  Sat.△/Y 3ph  TRADY_3



能不能用Ideal 3phase TRAFO_I3  这个模型代替啊是不是ATP版本的问题啊希望大家能够不吝赐教

dongchch · 发表于 2010-1-5 16:03:50

你用的是哪个版本的?不要用ideal trafo模型，计算不稳定

楚大少 · 发表于 2010-1-5 17:21:59

From my experience, saturable will give better performance than idea transformer. For the setting of the transformer, that will depend on what type of model you are using.

账号		自动登录	找回密码
密码			立即加入

ATP中变压器的参数怎么设置？各代表什么意思？

马上加入，结交更多好友，共享更多资料，让你轻松玩转电力研学社区！

相关帖子

评分