Industrial Engineer · phase 16 of 16 · noun

Regenerative Drive

Drive capable of returning braking energy from the DC bus to the AC supply.

The Explain card

Plain English: A regenerative drive can send braking energy from the DC bus back into the AC supply instead of burning it in a resistor. Its front end is an active converter that can push current in both directions.
Example: A downhill conveyor or a test dynamometer spends most of its time being driven by the load. A regenerative drive turns that into power the plant uses somewhere else.
Why it matters: Where braking is frequent or continuous, the resistor is a heater and the regenerative drive is a generator. The price, the added complexity, and the line side filtering only make sense when the energy returned is worth it, which a duty cycle calculation tells you.
Hook: Braking that pays you back.

How the word is built, where it came from, and what it sits beside in memory.

In a sentence

The crane hoist uses a regenerative drive to control deceleration during repeated lowering cycles.

Why these words

regenerative English regenerate, from Latin regenerare, to bring forth again modifies drive by identifying its regenerative operating capability
drive Old English drifan, to impel or drive names the motor-control equipment

Where it came from

Origin: English engineering compound formed from regenerative and drive
Entered the language: 20th century
What changed: Regenerative became an engineering modifier for recovery during operation, while drive developed from propulsion to motor-control equipment.

How it is spelled

Pattern: Regenerative ends in -ative, a common adjective-forming sequence.
Pattern: Drive follows the silent-e pattern in which final e marks the long i sound.

Spelled like

Broken into chunks

What it sits beside

Same subject

Same shape

motor drive energy-flow types

Phase 16: VFD Related Drive Terms

The drive family's wider vocabulary, from soft starters and servo drives to the regenerative units people also call a drive.