Assessment of ride-through alternatives for adjustable speed drives

Adjustable speed drive (ASD) ride-through issues have caused increased concerns due to the susceptibility of ASDs to power disturbances, and the costly results of process disruptions. These losses can be avoided for critical production processes by using ASDs with ride-through capabilities. This paper assesses industrial ride-through requirements through power quality surveys and the results of an ASD ride-through questionnaire conducted by the authors. ASD ride-through alternatives are evaluated based on design, implementation and cost considerations in order to determine the most suitable solutions for various kVA ratings and time duration requirements.

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