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Energy Newsbriefs Blog

This current awareness service is prepared by the WSU Energy Program Library with funding from the U.S. Department of Energy State Energy Program. This information is provided for energy professionals and interested members of the public to highlight recent energy-related news, articles, and reports that discuss energy efficiency, energy conservation, and renewable sources of energy in engineering and policy circles.

 

All posts tagged 'VFDs'

Check out all of the posts tagged with 'VFDs' below. If you still can't find what you are looking for, try using the search box.

Choosing the Proper VFD can Limit Harmonics

Pumps & Systems, Dec. 2015, by Jeffery Lovelace.
http://www.pumpsandsystems.com/pumps/december-2015-choosing-proper-vfd-can-limit-harmonics

"Facilities predominantly using these drives may face concern from power utility companies. Variable frequency drives (VFDs) have vastly evolved during the last 25 years.

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System Considerations for VSDs in Industrial Machinery

Pumps & Systems, Nov. 2015, by Paul Stavrou.
http://www.pumpsandsystems.com/pumps/november-2015-system-considerations-vsds-industrial-machinery

"The changing landscape of hydraulic drives is leading many fluid power specialists to quickly adapt to VSDs."

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Choosing Between Soft Starters & Adjustable Frequency Drives

Pumps & Systems, Nov. 2015, by Nichole Angiola.
http://www.pumpsandsystems.com/pumps/november-2015-choosing-between-soft-starters-adjustable-frequency-drives

"Motors often require large amounts of energy when quickly accelerating to full speed. Using soft starters and adjustable frequency drives reduce in-rush currents and limit torque—protecting valuable equipment and extending the motor's life by reducing motor heating caused by frequent starts and stops. Choosing between a soft starter and an adjustable frequency drive (AFD) often depends on the application, system requirements and cost, both for initial startup and over the life cycle of the system."

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Energy Efficiency in Water & Wastewater

Pumps & Systems, Sep. 2015, by Jeff Bergman.
http://www.pumpsandsystems.com/pumps/september-2015-energy-efficiency-water-wastewater

"VFDs [Variable Frequency Drives] can reduce energy consumption and water loss in variable pumping systems."

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Is a VFD a Cost-Effective Option for Your Application?

Pumps & Systems, July 2015, by Mark Berube.
http://www.pumpsandsystems.com/motors/july-2015-vfd-cost-effective-option-your-application

"While variable frequency drive (VFD) technology can significantly increase system efficiency by controlling pump speed, not every application requires a VFD. To determine when to apply this technology, end users must conduct detailed calculations to verify the cost-effectiveness of using a VFD."

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VFD Trends and Solutions for Drive Systems

Plant Engineering, June 2015, by Alex Ward.
http://www.plantengineering.com/single-article/vfd-trends-and-solutions-for-drive-systems/c655baa26fc5bd8e9e7a4e700ce2b7c5.html

"The increase in variable frequency drive (VFD) installations across the globe has meant that drives are being applied in more challenging system environments. Not only is the environment challenging, but drives also have a few inherited issues that can limit the overall system performance. Harmonics mitigation, filtering voltage spikes are two key issues."

Medical Data Center Controls Uptime, Energy With Variable-Frequency Drives

HPAC Engineering, Mar. 2015, by DANFOSS.
http://hpac.com/motors-drives/medical-data-center-controls-uptime-energy-vfds

A "From the Field: Design Solutions" column, provided by the manufacturer, Danfoss.
"At a medical data center in the upper Midwest, cooling-system uptime reliability is ensured with redundant computer-room air-conditioning (CRAC) units. For example, in a room needing eight units, 10 are employed. Drives cut energy use 40 percent by controlling HVAC fan speed on CRAC units."

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Energy Trust [OR] Lends a Hand with Irrigation Efficiency

Capital Press, Feb. 9, 2015, by Lacey Jarrell.
http://www.capitalpress.com/SpecialSections/Water/20150209/energy-trust-lends-a-hand-with-irrigation-efficiency

"More consistent water application [using variable frequency drives] can mean greater water and power savings for large- or small-scale farmers."

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Evaluating Power-Demand Reduction With VFD-Controlled Systems

Heating, Piping, Air Conditioning, Aug. 2014, by Alexander L. Burd and Galina S. Burd.
http://hpac.com/motors-drives/evaluating-power-demand-reduction-vfd-controlled-systems

Discusses the "the impact of relative dynamic-pressure losses and other factors on overall power demand and energy savings."

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Evaluating Power-Demand Reduction With VFD-Controlled Systems

Heating/Piping/Air Conditioning, July 2014, by Alexander L. Burd and Galina S. Burd.
http://hpac.com/motors-drives/evaluating-power-demand-reduction-vfd-controlled-systems

"This article considers the impact of relative dynamic pressure losses and other factors on overall power demand and energy savings in various systems."

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