3-Mode SVPWM for Three-Phase Four-Wire Inverter
Three-phase four-wire inverter is one of the most common two-level inverters and is a representative in the inverters. In this chapter, according to the operation principle of the three-phase four-wire inverter, the switched linear system model of the three-phase four-wire inverter is established, and the condition of m-mode controllability is given by using the state controllability criterion of the inverter. It is concluded that three modes are the minimum operating modes to realize state controllability. The theoretical analysis, simulation, and experiment of 3-mode SVPWM are carried out.