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Showing 1 to 5 of 5 for “"Variable Frequency Drives"”.
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Impact of System Impedance on Harmonics Produced by Variable Frequency Drives (VFDs)
Variable Frequency Drives (VFDs) are utilized in commercial and industrial facilities to improve motor efficiency and provide process flexibility. VFDs are nonlinear loads that inject harmonic currents into the power system, and result in harmonic voltages across the system impedance. This harmonic …
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A Method for Evaluating the Application of Variable Frequency Drives with Coal Mine Ventilation Fans
… band of air pressures and quantities. The use of variable frequency drives (VFDs), which control fan speed, provides a solution to this problem. VFDs are already used in various similar applications such as pumping and building ventilation. New technology now enables efficient VFD operation in …
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Strategic Roadmapping and Technology Portfolio Selection for Heating Decarbonization in Canada
… heat exchangers, and circulation pumps with variable frequency drives. Critical supporting technologies identified encompass building information modeling integration kits, cybersecurity modules, digital permitting platforms, smart thermostats, and thermal energy storage systems, among …
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Development of new methods for nonintrusive induction motor energy efficiency estimation
… its losses and efficiency while inservice. As Variable Frequency Drives (VFDs) continue to dominate industrial process control, there is a need for stakeholders to quantify the converter-fed motor losses over a wide range of operating frequency and loading conditions. Although there is an …
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Low Voltage Ride-Through for Indirect Matrix Converter Based Open-End Winding Drives
Adjustable speed drives (ASD) are one of the major load components in power systems and with the advent of wide band gap devices, which provide efficiencies greater than 95%, variable frequency drives will continue to grow and integrate into the systems. ASDs serve a varied set of processes …