Lebedev Physical Institute, Moscow, Russia

The current sheet creation in the active region of solar corona with nonsymmetrical position of the spots has been studied by numerical 3D MHD simulation. The types of disturbances are identificated which produce current sheet creation. The form and position of the current sheet in space has been studied. The obtained results permit to explain coronal mass ejection during the solar flare. The methods of numerical solving of MHD equations in the active region of solar corona are developed which take into account possibilities of personal computers.