Abstract
Variable frequency drives (VFDs) have found widespread application in recent years. VFDs are valued for their potential to save energy and improve processes. Reliability has improved significantly, but there are still pitfalls to be addressed in properly applying VFDs. The benefits and pitfalls in applying VFDs that will be addressed by this paper include- Benefits: Energy Savings, Improved Process Control, “Soft Start” Reduced Mechanical Stress, Improved Electrical System Power Factor, and Pitfalls: Motor Acoustic Noise, Motor Heating. This paper is intended for plant engineers and maintenance personnel who have some practical experience with electrical and mechanical equipment, but are not VFD experts.
Petro, D. (1993). Variable Frequency Drives: Energy Savings and Impact on Motor Performance. Energy Systems Laboratory (http://esl.eslwin.tamu.edu). Available electronically from
https : / /hdl .handle .net /1969 .1 /92133.