Il'yina O. Energy-saving semiconductor converters for public electric supply

Processes of electric power transmission, accumulations, conditionings in the utility power supply systems (UPSS) with active semiconductor compensator (AC). The development of methods to decline the losses and to improve the power quality in the UPSS due to application of AC, development of calculation methods and control algorithms of AC. The coordinate transformations and modern power theories, Fourier decomposition, design by the applied packages of the computer programs. The possibility of simultaneous efficiency increase and power quality improvement in UPSS due to connecting AC in parallell with the load, the modified coordinate transformations of voltage and current spatial vectors. Correlation for the calculation of parameters of capacity and inductive energy stores of AC, the new algorithms for automatic control systems of AC based on the cross-vector and p-q-r power theories, the computer model of UPSS with an AC. PE "RI "KhEMF", SPA "ЭОС" (Kharkiv), CE "Kharkivoblenergo" and educational process. Power electronics, energy supply.