FREQUENCY CONVERTER Russian patent published in 1997 - IPC

FIELD: electrical engineering. SUBSTANCE: frequency converter has bridge rectifier made by thyristors 1-6 using connected directly to frequency converter input terminals, one phase self-contained bridge type inverter made by thyristors 7-10 using and connected to rectifier by filter 11 choke using with series type circuit composed by commutating throttle 12 by side tap using and commutating capacitor 13 connected to bridge diagonally junctions with diode 14 which anode is connected to cathode part, but cathode of diode 14 is connected to anode part of inverter bridge. Chain type connection of second choke filter and capacitor 16 is connected between positive and negative output terminals of rectifier, thyristor 17 anode is connected to common point of second choke filter 15 and capacitor 16 and thyristor 17 cathode is connected to side tap of commutating throttle 12. Chain type connection of second diode 19, second thyristor 20 and second commutating throttle 21 is connecting between anode part of inverter bridge and common point of second coke filter 15 and capacitor 16. Second commutating capacitor 22 is connected between common point of second diode 19 and second thyristor 20 joint and cathode part of inverter bridge. Third diode 23 anode is connected to negative output of rectifier but cathode is connected to positive terminal of rectifier. Commutating capacitor 13 is connected to output terminals of frequency converter by transformer 18. EFFECT: more convenient circuit architecture for ozone electrical synthesis devise. 1 dwg