Pulsewidth-Modulated Inverters in Man-Made Fiber Industries

The pulsewidth-moduated (PWM) inverter has many inherent characteristics that make it a good choice for use in modern man-made fiber drives. Its wide operating speed range without tap changes and constant dc bus for ease of ``ride through´´ are two primary examples. Although drives using PWM inverters are well suited to man-made fiber applications, the inverter design is compatible with general industrial applications using induction motors in single motor, multimotor, and coordinated multimotor drives.