Bielokha H. Development and investigation of energy sources with relay control

Thesis is devoted to development and investigation of energy sources on a basis of tracking system with relay control and forced formation of consumed sinusoidal current from a circuit at absence of phase shift between voltage and current and imparting them properties of sources of current, voltage and capacity with ability to regulate output parameter on a value, form and frequency. In the work it is proposed to improve the quality of energy power not by compensation of harmonics but forced more accurate approach of actual current to a value and form of a current. Proposed energy sources in three-phase and single-phase performance which implement the modes of current sources, voltage sources, capacity sources and frequency converter. Analytical expressions to calculate the frequency of relay mode, capacitance of the capacitor as well as inductance of a choker have been obtained. By modeling at digital models it has been found that all stabilizing systems are insensitive to impact of any stimulation and are compatible at the same time with the circuit. There has been presented a scheme of universal energy source that combines purpose of current source as well as voltage and power source. Authenticity and validity of theoretical ideas and conclusions are confirmed by modeling results and an experiment.