| 摘要 |
FIELD: electricity. ^ SUBSTANCE: in switching method for excitation of parametric resonance and device for its realisation by excitation of parametric resonance of electric oscillations by switching method, reactive electric power is generated. This event is realised in reactive electric power generator (REPG). Additional inductance coil or capacitor with a certain nominal value of inductance or capacitance versus similar elements of the main circuit is connected in parallel to oscillating circuit at certain moments of time in specified mode with the help of thyristors. It makes it possible to vary circuit parametres (inductance, capacitance, frequency of oscillations, wave resistance) in process of each oscillation, according to algorithm of variation of control voltage sent to thyristors from separate pulse generator (PG) and thus to achieve parametric resonance without functional link of current and voltage amplitudes in circuit with value of control voltage. Stationary amplitude of parametric oscillations is provided with the help of stabilitrons with shunting resistors connected parallel to circuit, which, passing through itself a part of charge that participates in process of oscillation and scattering excessive reactive power, thus, amplitudes of current and voltage are limited within the limits required for circuit serviceability. Functioning of PG is carried out by part of output power of REPG, which provides for complete independence of REPG as source of power supply. ^ EFFECT: simplification and reduction of cost. ^ 2 cl, 7 dwg |
