MULTIPHASE EMF GENERATOR WITH CONTROLLED INITIAL PHASE Russian patent published in 2019 - IPC H05B1/00 H03B5/24 

FIELD: physics.

SUBSTANCE: invention relates to means of generating a multiphase emf system based on the use of pulse equipment. Device allows to change initial phases of voltage phases of device discretely with step 2π/n, where n is the number of time intervals on the period of sinusoidal oscillations T. At each time interval TI=T/n, sinusoidal phase voltages for each discrete value of the initial phase are approximated by voltage pulses of the required value coming from DC sources of the power supply unit. Switching unit comprises a number of switching boards 1…k, where k is number of considered initial phases, not exceeding value (n-1). In operating condition, only one of switching unit boards is active. Using the switching unit active card, the sources of constant emf of the power supply unit are connected to the output poles of the device for each of n time intervals of TI duration. Each board of switching unit implements switching for one fixed value of initial phase. Switching of the boards is carried out using the initial phase control unit only in the first time interval.

EFFECT: possibility of discrete control of initial oscillation phase for synchronization of device operation with external network, with matching of oscillation frequencies, amplitude values of phase voltages, initial oscillation phases of connected device and network.

1 cl, 9 dwg, 3 tbl