Denys I. Improvement of dynamic performance of hybrid diesel locomotive with valve-induction drive

The is devoted to solving the actual scientific and practical task of improving the hybrid system and researching a hybrid locomotive on the basis of a valve-induction motor using a control system with different types of speed regulators for obtaining a specified law governing the train movement and reducing fuel consumption. Maneuver locomotives perform work on the formation and unblocking of trains at stations, and therefore they are one of the main performers of railway transport. Maneuvering locomotive fleet of Ukrzaliznytsya JSC does not meet the needs of the railway transport and the European standards of quality of transport services in many ways. Most locomotives in operation have 40-60% higher maintenance and repair costs compared to modern models. In order to meet the current requirements for shunting locomotives, world-class companies in the field of locomotive engineering are following the tendency to introduce hybrid power transmissions on rail transport. However, all powered drives operating in Ukraine have a transmission without energy storage. However, the use of powerful shunting diesel locomotives is not justified economically, because their use in partial loading leads to over-consumption of fuel. In the dissertation work the simulation model of the existing shunting diesel locomotive is developed and the features of its work under different modes of driving of a train are investigated; the functional scheme of the hybrid shunting diesel locomotive with the use of two types of drives is proposed; the parameters of the mathematical models of the gate-induction energy converters are identified; The simulation model of energy storage devices, diesel generator sets, power converters was developed; Modal and speed regulators are synthesized; A prototype system of the wheel was created - a traction motor with a valve-induction drive and a control system based on fuzzy logic, physical experiments were carried out, an analysis of the results of the research was carried out.