HIGH FREQUENCY CONVERTER high power active rectifier

摘要

The invention relates to the field of power converter equipment and can be used to supply asynchronous and synchronous electric voltage of 6.3 kV and 10 kV power 0.5-15 MW and the pulse-width modulation. Objective - increase efficiency of high frequency high power converter with active rectifiers by reducing power losses in power transformers the phase-shifting .. The problem is solved in that the device is provided with a power supply voltage sensor 13, control unit 14, the switching angle correction unit 15 and the number of frequency converters provided with sensors AC sensors 16 and DC bus voltage 17. The claimed device by minimizing the higher g rmonik in a current frequency converters, it allows to increase the efficiency of the high voltage inverter by reducing power losses in the power phase-shifting transformers. Furthermore, the choice of switching the values of angles α _1, α _2, α _3, α _4, α _5, subject to adequate supply of the angle between them provides power switches control three-level reliability active rectifiers and, therefore, the claimed circuit solutions as a whole. 4 yl.