| 摘要 |
FIELD: electric engineering. ^ SUBSTANCE: device has microcontroller with an analog-digital converter, realizing operation algorithm of thyristor frequency transformer, three-phase thyristor rectifier, containing throttling valve, thyristor inverter, launch thyristors, LC-contour, voltage and inverter current control nodes for LC-contour, synchronization pulse generator. Non-contact current direction indicator is composed of two Hall indicators, mounted in the gap of magnetic duct, enveloping LC-contour conductor. Hall indicators provide synchronization of operation of control block with frequency of LC-contour and provide automatic support of power value of LC-contour, determined by value of consumed current and actual value of rectifier thyristors opening node. ^ EFFECT: higher reliability, higher durability, higher efficiency. ^ 5 dwg |
