Regenerative and Non-regenerative AC Dynamometer Drives

AC Dynamometer drives from ABB
Safely put power back onto the grid: Complete packaged solution with energy recovery for new or existing AC Dynamometer installationsABB Drives Alliance Partner

Dyne Systems AC Dynamometer Drive Solutions

Dyne Systems provides:

  • 15HP – 1600HP Regenerative and Non- Regenerative AC Drives
  • Complete packaged solution in a NEMA rated cabinet
  • Multidrive Common Bus Solutions
  • ABB Drives Alliance Partner

AC Drives Overview

Our AC Drive packages offer a complete packaged solution for new and existing AC dynamometer installations. Regenerative AC drive solutions provide energy recovery benefits and multi-drive common bus configurations can reduce input power requirements for applications where an AC dynamometer is used for the prime mover and absorber. Each AC drive system can be provided in a totally enclosed NEMA rated cabinet and typically does not require additional external components

ABB Drives Alliance Partner

We incorporate ABB AC Drive modules as a fundamental part of our AC drive solution which provides our customers with the latest advancements in AC drive technology. Dyne Systems is an ABB Drives Alliance Integrator which provides our customers with the highest level of application, engineering and service expertise and can also offer other benefits like extended warranty on ABB based AC drive systems installed by Dyne Systems personnel.

Regenerative (4-Quadrant)

Regenerative AC drive systems, also known as four-quadrant drives, are capable of controlling both the speed and direction of AC dynamometer rotation, as well as the direction of AC dynamometer torque. Regenerative AC drives provide the AC Dynamometer with the ability to both absorb power and motor the device under test. The term regenerative describes the ability of the drive under braking conditions to convert the mechanical energy of the motor and connected load into electrical energy which is returned (or regenerated) to the AC power source. Regenerative drives can reclaim a majority energy produced from the device under test which can reduce the overall cost of testing

Non-Regenerative (2-Quadrant)

Non-Regenerative AC drive systems, also known as two-quadrant drives, are capable of controlling motor speed and torque in one direction only. Typically, 2-quadrant AC dynamometer drive systems are used to control an AC dynamometer that acts as a prime mover in a test stand. This motoring-only AC dynamometer may drive a device under test while controlling and measuring speed or torque.

Multi-drive Common Bus

Multi-drive common bus arrangements are built from AC drive modules that are connected to a common DC bus bar. The common bus bar is used to supply the drive modules with DC power, and each drive module then inverts the DC to AC and powers an individual motor. The DC power is derived from a single supply unit (rectifier) that is built into the front of the same multi-drive configuration. The standard DC bus arrangement enables single power entry and common braking resources for several drives. Common braking includes regenerative braking and motor-to-motor braking depending on the dynamometer application. Modular construction simplifies the total installation and results in many benefits such as reduced input line current and savings in cabling, installation, space and maintenance costs.

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