International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The structural scheme of the distributed power supply system with the use of solar photovoltaic stations is presented. An algorithm for the conversion of a solar photovoltaic power plant conversion system in the Matlab software environment has been developed and implemented, which allows using a standard power topology to simultaneously implement two operating modes – renewable energy generation to the mains and mains current shape correction.

The Smart Grid network system is a concept of a fully integrated, self-regulating and renewable power system with a network topology and includes all generating sources, main and distribution networks and all types of electrical energy consumers controlled by a single network of information and control devices and systems in real of time. The article proposes the introduction of the Smart Grid concept into the traction power supply systems, an analysis of the necessary steps to upgrade the traction substations, and the boundaries of the energy-saving effect from its implementation.

Implementation of the principles of “INDUSTRY 4.0” into the traction power supply systems implies the introduction of power factor correction modes and the possibility of bi-directional energy transfer in the DC traction substations used on railways and subways. The article provides an overview and comparison of active rectifier circuits, which allow to realize power factor correction and eliminate the higher harmonics of the input current. A number of requirements are presented, on the basis of which the optimal scheme for the rectifier of the traction substation was chosen.

The article describes software modules of computer-aided design of vehicle power supply systems: analysis of modes of power supply systems operation, optimal choice of wire sizes, selection and verification of protective devices.