Синтез мехатронного гидропривода рабочего колеса гидротурбины

Abstract

In the article the working process of mechatronic hydraulic drive of the runner is investigated on the basis of the advanced mathematical model. The improvement of quality indexes of dynamic characteristics is provided with an input into control device of two PID-regulators with the differential isodromic channel settings. Adjustment of the small displacements of the servomotor piston (small rotation angles of the blades) with sufficient accuracy for practice is achieved by formulation and solution of the problem of correcting device dynamic synthesis. The values of the synthesized curve are entered the computer system software and in the process of work they come into the PID proportional channel transforming it into a correcting device. Simultaneously the invariance of working process is achieved regarding harmful influence of gas content increase in two-phase working fluid up to 15 %.