Space Vector PWM algorithm for three-phase 16-level class B-2 converter

Multilevel converters offer a wide range of advantages; however, they suffer from their own prevalent issues such as modulation techniques for higher levels. In this paper, a novel Space Vector Modulation (SVM) technique is proposed to be implemented on a three phase Class B-2 converter. Although the SVM has the advantage of digital implementation, as well as offering redundant switching states, at least finding the tip of the reference vector in each triangle is a critical issue. The proposed SVM technique for Class B-2 converter transfers the reference vector to the first sextant, and finds the number of triangles containing the tip of the reference vector and then using angular shifts transfers the triangles of the first sextant to their original sextants. Waveforms of line voltage, load current, and their THDs are discussed.