Vector control of three-phase inverter

Can a vector current control a two-level inverter?

Both currents can then be controlled using conventional PI controllers, with zero steady-state error. In this note, it is proposed to study the vector current control of a two-level inverter. This example features two state variables: the grid current on the d-axis I g, d and on the q-axis I g, q.

What is vector current control?

Vector current control (also known as dq current control) is a widespread current control technique for three-phase AC currents, which uses a rotating reference frame, synchronized with the grid voltage (dq -frame). First, the note introduces the general operating principles of vector current control and then details a possible design methodology.

Which modulation techniques are used in three-phase inverters?

This paper presents a comprehensive comparison of two primary modulation techniques employed in three-phase inverters: Sinusoidal Pulse Width Modulation (SPWM) control and Space Vector Pulse Width Modulation (SVPWM) control.

Can a PI controller control a two-level inverter?

The control of the AC current becomes therefore transformed into a new control scenario, consisting of two DC currents. Both currents can then be controlled using conventional PI controllers, with zero steady-state error. In this note, it is proposed to study the vector current control of a two-level inverter.