25

Inverters

Michael G. Giesselmann

Texas Tech University

25.1    Introduction and Overview

25.2    Fundamental Issues

25.3    Single-Phase Inverters

25.4    Three-Phase Inverters

25.5    Multilevel Inverters

25.6    Line-Commutated Inverters

References

25.1  Introduction and Overview

Inverters are used to create single or poly-phase AC voltages from a DC supply. The DC supply is typically created by rectification of AC voltage from the utility power grid with due consideration of harmonics and input power factor. In the class of poly-phase inverters, three-phase inverters are by far the largest group. A very large number of inverters are used for adjustable speed motor drives for motors ranging from fractional hp (horsepower) to several 100 ...

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