METHOD TO PRODUCE SWITCHING CONFIGURATION FOR DIRECT AC-TO-DC CONVERTER Russian patent published in 2010 - IPC H02M5/293 

FIELD: electrical engineering.

SUBSTANCE: zero voltage is generated using direct conversion input phase voltage intermediate phase as a reference phase. Input spatial vector is divided by 12 to define switching configuration for zero voltage vector. When control vector of input current moves between sectors of spatial vector on input side, or when control vector of output voltage moves between sectors of spatial vector on output side, two-way switch is switched for every phase. Degree of freedom, available in selection of zero voltage vector combination, is used for revising the switching table. In stationary conditions spatial vector sector is defined for the next transition in the form of five configurations, and switching configuration is changed so that prevent simultaneous switching of two or more phases. If simultaneous switching of two or more phases occurs in renewing vector usage duration, this renewing is delayed to be performed in the next state of the switch.

EFFECT: higher accuracy, simplified method.

9 cl, 15 dwg