DEVICE FOR RECTIFICATION OF THREE-PHASED VOLTAGE WITH FOUR-CHANNELED TRANSFORMATION OF ENERGY FLOW Russian patent published in 2006 - IPC H02M7/08 

FIELD: electric engineering, possible use as rectifier of three-phased voltage, having high electromagnetic compatibility with load and network.

SUBSTANCE: device contains four transformation channels, each one of which includes three-phased rectification bridge 1 (1,3,4) and three-phased transformer. Circuits of primary windings 9,10,11,12 of all transformers are connected to one another synchronously and serially, forming three primary phase circuits, connected to network. Three phases of circuits of secondary windings 5,6,7,8, connected to inputs of rectification bridges with odd numbers are connected to one another in accordance to "star" circuit, and with uneven numbers - in accordance to "triangle" circuit. Three primary phased circuits are made to provide for generation on inputs of rectification bridges 1,2,3,4 of voltage systems with serial phase shift for angle δ=π/12. when device is made on two transformers, into each of phases of circuits of their secondary windings, connected to pair of rectification bridges 1,2 and 3,4, windings of appropriate trans-filters 19,20 are connected phase-wise.

EFFECT: due to neutralization of negative consequences, caused by amplitude non-symmetry of voltages in channels, device provides high quality of output voltage while having good mass-dimensional characteristics.

3 cl, 6 dwg