Research method of influence of configutation and external electric circuit's parameters on dinamics of plasma cord in Z-pinch type plants is developed. Plasma is considered to be completely ionic nonrelativistic and two-fluid. In particular, electron's inertia is completely taken into account. The electrotechnical equations for different external circuits are derived. Numerical algorithm of combined dinamics of plasma cord and external circuit's charges and currents research is suggested. Test calculations are carried out. Preliminary results are obtained.

Mathematical modelling in actual problems of science and technics