Improvement ways for electric drive of floating crane propulsion plant according to induction motor (im) - rotating-blade vertical-axis propeller system (rbvaps)

Abstract

The aim of the work is to improve the methods and control devices of induction electric drives for propulsion electric plants (PEP) of the marine self-propelled floating cranes permitting to increase the electric power quality indices. The mathematical description of the interconnected RBVAPS-IM-small-element frequency converter of direct type (SEFCD) and RBVAPS-IM systems basing on the mathematical model of the multi-mass electromechanical system with elastic couplings between elements has been given. The serviceability of SEFCD and also two-motor RBVAPS electric drive with parametric start method has been shown. The design methods for calculation of the transient parameters have been developed. The software package and calculation methods of transient parameters in the electromechanical system of EPP have been introducedAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio