CURRENT STATE AND DEVELOPMENT PROSPECTS OF ELECTRIC DRIVE OF PIPELINE VALVES

The paper deals with issues of the electric drives of the pipeline valves. The basic requirements for the electric drive were considered. Tendencies of the development of the technical means for improving its efficiency are discussed. The analysis of the existing control systems and problems of utilization of the vector control of the electric drive of pipeline valves were made. Because of the design features of pipeline valves, the usage of an encoder on the output shaft gear causes the error of determining the position of the rotor flux vector. The ways of solving this problem were offered.