Line Regeneration with Variable Speed A-C Drives, 1997 Process Control, Electrical & Info. Conference Proceedings
Although many A-C drives are inherently regenerative, a means for transferring that energy back to the line has historically been too complex or costly for most applications. Whenever an application called for line regeneration a D-C drive was usually chosen.
Two factors have made line regeneration with A-C drives more desirable. Component cost reductions have made line regeneration with A-C drives less expensive, and technological advances in power and control have increased the available options. This paper discusses the variety of options available for A-C drive regeneration.