11.4.4 Space-Vector-Based Modulating Techniques in CSIs

The objective of the SV-based modulating technique is to generate PWM load line currents that are on average equal to given load line currents. This is done digitally in each sampling period by properly selecting the switch states from the valid ones of the CSI (Table 11.6) and the proper calculation of the period of times they are used. As in VSIs, the selection and time calculations are based upon the space-vector transformation.

11.4.4.1 Space-Vector Transformation in CSIs

Similarly to VSIs, the vector of three-phase line-modulating signals icabc=icaicbiccTsi490_e can be represented by the ...

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