Power supply for wind energy equipment

Balluff has released a semi-potted device designed to serve as a power supply specifically for technology that requires wind energy.

06/02/2011


Bailuff has introduced a new, intelligent, energy-saving power supply especially for use in wind energy equipment. The semi-potted device with an efficiency rating of 93% is designed for high shock and vibration loads and an extremely long service life of nearly 20 years with a mean time between failure (MTBF) of 800,000 hours. This is reportedly the first power supply which can be connected directly to the generator voltage without need for an intermediate transformer. Also apparently unique are the optical indicators which display the status and condition of the unit. Since it tracks dynamic loads, it can be operated continuously even under high load conditions. This makes reserves of from 30% to 50% no longer needed.

Special sensors in combination with a microcontroller continuously monitor wear factors in the power supply such as temperature, overload, faults and other conditions. Intelligent evaluation of these parameters then gives the user an overview of the status of the unit for implementing maintenance measures, thereby drastically reducing the probability of failure of the overall system. Colored LEDs in traffic light colors provide the user with continuous information about the current load level, the stress level as well as the life time, a forecast of remaining life expectancy. The indicators are bright enough to be reliably seen and interpreted from several meters away.

For the first time ever the usual 3-phase transformer used in wind power equipment can be dispensed with, thereby saving money. Thanks to its broad input range of 380 - 690 V the switched-mode power supply can be connected directly to the generator voltage of the wind turbine. The positive effects:installation effort, and reduced number of failure-prone parts along with increased efficiency of the system due to less heat loss.

www.balluff.com 

- Edited by Chris Vavra, Control Engineering, www.controleng.com

See http://www.controleng.com/channels/sustainable-engineering.html



No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
40 Under 40; Stand-alone medical buildings; NFPA 92; Specialty fire suppression; Applying 90.1 in lighting design
2016 Product of the Year Finalists: Vote now; Data center Q&A; LED codes; Smart buildings
Fire pump power system design: How to design safe, reliable fire pump power service; Water management in commercial buildings; Emergency egress, illumination
Designing generator systems; Using online commissioning tools; Selective coordination best practices
Understanding transfer switch operation; Coordinating protective devices; Analyzing NEC 2014 changes; Cooling data centers
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.
click me