Vector control uses coordinate transformations (such as Clarke and Park transformations) to convert the three-phase motor currents into a two-coordinate system (d, q), enabling better regulation of the motor's internal dynamics. First, the note introduces the general operating principles of vector current. . Three-phase three-level neutral point clamped inverters are widely used in new energy fields such as photovoltaic power generation and wind power generation by virtue of their multilevel topology. In contrast, vector control faster response times, improved speed and torque accuracy, and reduced. . This paper proposes a transformation matrix to generate two phase reference voltage signals for Four Switch Three Phase Inverter (FSTPI) using vector control. The feasibility of the control strategy is verified by proving the power invariance before and after the transformation. The VSI have six legs for the three-phase induction motor, and eight switching. .
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