Identifying and Mitigating Harmonics in AC Drive Applications: The goal in an industrial environment is to find cost-effective solutions for the specified drive and power distribution system

摘要

Common to any production operation is movement, usually driven by electric motors. Better control of this movement contributes to improved operational performance. Beyond performance, however, there's also the need to protect these motors to maximize return on investment. For reliable control and improved protection, adjustable-speed drives are a common companion to motors. Although these drives offer inherent production benefits, they may also contribute to power quality issues, such as line current harmonics. As a result, you should take a closer look at harmonics when evaluating mitigation strategies.