LVRT 不平衡条件下的逆变器低穿运行

不平衡电网条件下，逆变器根据并网准则的要求，需要不脱网运行，并提供无功支撑。本仿真实现了不平衡条件下的逆变器低穿运行，并实现在故障后快速的功率回复

function [sysx0strts] =AD_abcTodq（txuflag）

switch flag
  case 0
    [sysx0strts]=mdlInitializeSizes; 
  case 3
    sys=mdlOutputs（txuflag）;           
  case {1249}
    sys=[];       
  otherwise
    error（[‘Unhandled flag = ‘num2str（flag）]）;   
end


function [sysx0strts]=mdlInitializeSizes     
sizes = simsizes;                         
sizes.NumContStates  = 0;               
sizes.NumDiscStates  = 0;             
sizes.NumOutputs     = 6;              
sizes.NumInputs      = 10;              
sizes.DirFeedthrough = 1;               
sizes.NumSampleTimes = 1;              
sys = simsizes（sizes）;                 
x0  = [];                              
str = [];                               
ts  = [1/10000 0];


function sys=mdlOutputs

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       4154  2013-04-26 11:05  LVRT\AD_abcTodq.m

     文件       1429  2013-04-22 12:01  LVRT\AD_dqToabc.asv

     文件       1528  2013-04-26 22:22  LVRT\AD_dqToabc.m

     文件       1227  2012-07-13 10:01  LVRT\dq_ab_P.m

     文件       1667  2012-07-13 10:04  LVRT\Eabc_dq_PN.m

     文件     303366  2013-04-24 14:07  LVRT\Grid.bmp

     文件     384258  2013-04-24 14:12  LVRT\Grid2.bmp

     文件       1736  2012-07-13 10:09  LVRT\iabc_dq_PN.m

     文件     253476  2013-04-24 21:45  LVRT\inverter.jpg

     文件      66045  2013-04-25 11:55  LVRT\inverter_001.mdl

     文件       3837  2013-05-15 22:25  LVRT\PNS_Uq_PLL.m

     文件       1811  2012-05-28 09:27  LVRT\PSfilter.m

     文件      86358  2006-04-11 08:57  LVRT\pv.bmp

     文件      86477  2013-04-24 18:52  LVRT\PV.jpg

     文件     266061  2014-03-09 16:51  LVRT\PV_500kW.mdl

     文件     331948  2014-05-07 15:18  LVRT\PV_500kW_201403.mdl

     文件     313495  2015-05-18 00:02  LVRT\PV_500kW_201405.mdl

     文件     433158  2013-04-21 14:40  LVRT\PV_array.mdl

     文件       2549  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\info\binfo.mat

     文件       2703  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\info\chart1.mat

     文件       2705  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\info\chart2.mat

     文件       2709  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\info\chart3.mat

     文件       1678  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\info\chart4.mat

     文件       2093  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\info\chart5.mat

     文件      40554  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\src\c1_ThreePhaseGridConnection.c

     文件       1135  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\src\c1_ThreePhaseGridConnection.h

     文件      27994  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\src\c1_ThreePhaseGridConnection.obj

     文件      40555  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\src\c2_ThreePhaseGridConnection.c

     文件       1135  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\src\c2_ThreePhaseGridConnection.h

     文件      27994  2013-04-22 11:36  LVRT\slprj\_sfprj\ThreePhaseGridConnection\_self\sfun\src\c2_ThreePhaseGridConnection.obj

............此处省略45个文件信息