Increasing motor efficiency with power factor control
Maximizing energy efficiency of a motor drive application using classic, interleaved power factor control (PFC).
Electric motors account for 65% to 70% of industrial electrical energy consumption and approximately 57% of all electrical consumption worldwide. Therefore, electronic designers of are now looking into maximizing the energy efficiency of a motor drive application using power factor control (PFC). Using an electronic drive to regulate the output speed of the motor for the mechanical load required, with PFC improves efficiency of the drive by correcting the out of phase voltage and current being used.
Classic PFC circuits used in many drive applications have been the single boost topology. Recently, interleaved power factor has gained much interest in the drive community. Each PFC topology has distinct benefits.
As the industrial market looks to replace old inefficient motors, and new equipment manufacturers try to make use of better variable speed motor solutions, high efficient drives will be the solution. Manufacturers that offer motor drives with power factor control will be able to work with OEM customers meeting the needs of energy efficiency, low installation cost, and flexibility.
- Edited by Gust Gianos, Control Engineering, www.controleng.com
Case Study Database
Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.
These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.
Click here to visit the Case Study Database and upload your case study.
Annual Salary Survey
In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.
Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.