Author(s)

Sheng Li

Corresponding Author

Sheng Li

ABSTRACT

Due to the limitation of voltage withstanding of power devices, multiple power devices need to be connected directly in series. The requirement for the capacity of the converter is also increasing. The high-power converter with several megavolt-amperes or even more than ten megavolt-amperes has been gradually applied. The development of power electronics technology has entered a new era. Since the converter will be used to drive loads that are very sensitive to specific harmonics, the output waveform and control method are studied. Every improvement and innovation in power electronics and electric drive technology can be applied immediately in practical industrial and civil applications. It plays an extremely important role in transforming traditional industries, developing high technology and using energy efficiently. The relationship between the two components of the stator current and other physical quantities must be found in the mathematical model. This paper proposes a feasible topology by connecting the series and parallel connections of the three-level inverter modules. A multi-level high-voltage, high-current, high-power output is realized.

KEYWORDS

Inverter, Stator Current, Control Method