基于旋转变化的三相电压显示

只看该作者 · 2015-5-14 10:56

//************电网电压显示计算************************
      Display_CON3S2S( UA_Display, UB_Display, UC_Display );
      alpha = DisplayLS1 * DisplayLS1;
      belta = DisplayLS2 * DisplayLS2;
      LineVolSquare = ( alpha+belta ) * 0.3333;
      for ( BiCount = 10; BiCount > 0; BiCount-- )
      {
                     BiVari = ( BiMinInitial + BiMaxInitial ) * 0.5;
         if ( ( BiVari * BiVari - LineVolSquare ) < 0 )
{
                                 BiMinInitial = BiVari;
}
         if ( ( BiVari * BiVari - LineVolSquare ) > 0 )
{
                                 BiMaxInitial = BiVari;
}
      }
      COM_UAB = (int) ( BiVari );
      COM_UBC = (int) ( BiVari );
      BiMinInitial = 0;
      BiMaxInitial = 1000;

在这段程序中，上下限比较起什么作用啊？是基于什么原理啊？往大侠指教