Nguyen L. Control of the single-phase power conditioner basing on pulse-width converters

Object of the investigation are power conditioners, and purpose of the investigation - development of control algorithms of the power conditioner basing on the pulse-width converters to maintain high power factor of single-phase power supply systems. Methods of the investigation are the analysis of processes of the power conditioner from conditions of balance of energy and equal distribution of the power energy. In the thesis simulation on PC and model samples are used. Theoretical results of the thesis are method for determining parameters and effective control algorithms of parallel power conditioners. Practical results are the elaboration of a microprocessor control system, which provides high power factor of system with nonlinear loads. Novelty of the received results consists in development of control algorithms, determination ratio between duration of working intervals, which allows to determine parameters of reactive elements, and elaboration of new method for determining parameters of the power conditioner by average currents and voltages. The results of the thesis are inculcated in educational process of the National Technical University of Ukraine and effectively used at the Institute of Industrial Electrical Engineering (Zielona Gora, Poland) for controlling of single-phase power conditioner with uninterruptible power supply capability