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Pump Controller suits high-pressure hydraulic power systems.
April 29, 2008 -
UNiGY® PhD(TM) employs pump-control software to produce precise flow rates and pressures required by application by continually sensing demand and energizing pump only as required, lowering energy consumption, waste heat generation, and noise. Torque regulating drive controller is powered by 100 MHz DSP, which allows compensation in real time for non-linear conditions like fluid compression, pump slip, fluctuating flow resistance, and windage, as well as viscous and coulomb losses.
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UNiGY® PhD(TM) Technology Improves Efficiency and Control of Hydraulic Systems
Third Generation Drive Controller Reduces Power Consumption by 60% or More
Queensbury, N.Y. - Kadant Inc., a leading global provider of process solutions, introduces the UNiGY® PhD(TM) system, a significant advance in pump control technology for high-pressure hydraulic power systems. The UNiGY PhD (Pump-modeling hydraulic Drive) dramatically improves energy efficiency, process control, and system availability of hydraulic power systems used in a variety of industries, including forging, plastic injection molding, and tube bending.
An elegantly simple solution, the exclusive and patented UNiGY system employs intelligent pump-control software to produce the precise flow rates and pressures demanded by the application, and no more. The UNiGY system continually senses demand and energizes the pump only as required, significantly lowering energy consumption, waste heat generation, and noise.
The UNiGY PhD employs a third generation torque regulating drive controller powered by a 100 megahertz digital signal processor (DSP) for faster response time and precise pump control. Utilizing the powerful DSP, UNiGY PhD can incorporate a broader range of hydraulic application tuning parameters and compensate in real time for non-linear conditions like fluid compression, pump slip, fluctuating flow resistance, and windage, as well as viscous and coulomb losses. As a result, the UNiGY PhD can produce desired motion profiles with significantly higher precision than a system employing pressure compensated hydraulic pumps feeding servo-valves.
For processes where hydraulic demand is intermittent, UNiGY technology can significantly extend hydraulic system component life, depending on the application. The system achieves this by slowing or stopping the pump when reduced flow is required, and by using feed-forward torque control algorithms to eliminate pressure spikes, resulting in fewer hose bursts, fewer leaks, and fewer unscheduled plant outages.
The UNiGY system can be easily retrofitted into existing systems and incorporated into new installations. UNiGY technology reduces hydraulic system complexity by eliminating the need for pressure compensated pumps, as well as oil cooling circuits, dump valves, servo valves, and associated amplifier cards.
About UNiGY®
UNiGY®, a registered trademark of Kadant, Inc, is a patented technology that utilizes pump-modeling software in closed-loop Flux Vector Drives for hydraulic power generation and to monitor and control high pressure positive displacement pumps. Not to be confused with VFD technology, UNiGY PhDTM (Pump-modeling hydraulic Drive) technology provides precise control of both pressure and flow. Developed under a grant provided by the New York State Energy Research and Development Authority (NYSERDA), UNiGY technology reduces energy use, simplifies system design and provides valuable pump and systems diagnostics which significantly reduces maintenance and downtime expense. For more information please visit www.kadantunigy.com.
Contacts:
Public Relations:
Gray & Rice Public Relations
Annmarie Latta
USA
Phone: 617-367-0100 ext 168
 E-mail this person
Company Information:
Name: Kadant, Inc.
Address: 436 Quaker Road, PO Box 7010
City: Queensbury
State: NY
ZIP: 12804
Country: USA
Phone: 518-793-8801
FAX: 518-793-9392
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