| Abstract |
Insulated Gate Bipolar Transistors (IGBTs) have recently witnessed significant improvements, which
have made IGBT-based Medium Voltage (MV) Pulse Width Modulated (PWM) Voltage Source
Inverters (VSI) a commercially viable option in multi-megawatt Adjustable Speed Drive (ASD)
applications, historically dominated by SCR-based converters. The High Voltage (HV) IGBTs have
enabled power converter designers to achieve cost competitive and compact equipment with improved
performance.
This paper reviews different types of ASD configurations and describes the design, development and
application of a state of the art, universal IGBT-based MV, PWM VSI drive which delivers variable
frequency sinusoidal voltage at its output terminals. The main feature of this converter is the use of
series 3.3kV, 1200A IGBTs and a sine-wave-output filter. |
