Abstract
The paper considers a new doubly-fed freight electric locomotive taking into account the world experience of locomotive construction, the regulatory base and operating conditions on the railways of Russia. Its parameters are presented: the main technical characteristics in comparison with currently used electric locomotives of new series, standard traction characteristics, and the characteristic of electric braking. Features of the design of the units and parts of the undercarriage and brake equipment are given. The studied doubly-fed freight electric locomotive is designed taking into account the optimal combination of equipment backup capabilities and increased operational reliability with minimization of the failure flow causing the withdrawal of two or more traction axles due to the faults. It has promising possibilities for replacing outdated locomotives with alternating and direct current, operated on sections with changing and adjacent stations, electrified on a constant and single-phase alternating current in the places where such sections are joined to the extent of the organization of traffic control according to the principles of working domain technologies. In this case, the joints between the two types of the train current can pass nearly without stopping, their running time is shortened, and the performance indicators are improved.
Highlights
The development of rail transport in Russia is a strategic task
The main problems of the locomotive operational complex of the last decade are reflected in the “Strategy for the development of railway transport of the Russian Federation until 2030” approved by the decree of the Government of the Russian Federation on June 17, 2008
The conducted studies allow saying that the dual-mode electric locomotive 2EV120 is an innovative, promising locomotive that could replace the outdated electric locomotives
Summary
The development of rail transport in Russia is a strategic task. In the conditions of a dynamically changing economic situation and an active desire to fill a niche of leadership among other modes of transport, modernization, improvement of rolling stock and infrastructure is required, which is impossible without scientific research taking into account global socio-economic changes and innovations. The main base document in our country for setting the direction of the strategic planning vector is Federal Law No 172 of June 28, 2014 “On strategic planning in the Russian Federation” [1]. This law touches upon all spheres of public administration. In accordance with this Federal Law, in the transport sector and, in particular, on railway transport, an innovative stage of development is to be carried out in all areas of activity, taking into account state and industry priorities, goals, and objectives. The main problems of the locomotive operational complex of the last decade are reflected in the “Strategy for the development of railway transport of the Russian Federation until 2030” approved by the decree of the Government of the Russian Federation on June 17, 2008, https://doi.org/10.10 51/matecconf /201823901001
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