Payanok O. Methods and facilities of voltage control on electric transport traction substations

The object of study is the electrical engineering complex "power-supply system - city electric transport". The subject of study is methods and facilities of voltage control on electric transport traction substations. The following methods are used in the dissertation for the solution and analysis of the tasks: methods of the theoretical electrical engineering and inverter technique, theory of finite automata, automatic control theory, analytical abilities of computer algebra, theory of algorithms. Theoretical value of received results is that in these work voltage spectrum control method of electric transport traction substations is offered which takes into account influence of transport facilities loading on the voltage spectrum in an overhead contact system and the form of voltage curve on the input buses of city electric transport substations. It supposes setting of variable capacity filters on the direct-current voltage supply buses. Also a method of synthesis of traction substations voltage spectrum regulator devices on the basis of mathematical apparatus of sequences gets a subsequent development that gives an opportunity for minimizing hardware environment and programs of industrial controllers functioning. Practical value of received results is that algorithms of functioning and structures of microprocessor facilities voltage spectrum control devices of electric transport traction substations are developed that enables to extend functional possibilities of control facilities, to increase their flexibility, to improve power indexes and promote reliability of work. Degree of introduction - in range of the field. The field of application - tram-car-trolleybus management of Ukraine cities which exploit city electric transport traction substations.