Author(s)

Yue Ma, Yuelei Shen, and Dafang Wang

Corresponding Author

Yue Ma

ABSTRACT

Virtual space vector pulse width modulation of three-level inverter is widely used, while narrow pulses will be generated in certain region, which will result in unnecessary switching loss and heat accumulation. In this paper, the state duty expressions of each phase of the virtual space vector PWM are derived, and the distribution area of the narrow pulse is analyzed accordingly.

KEYWORDS

Three-level inverter, Virtual space, narrow pulse