Results 11 to 20 of about 881,216 (213)

Improved Order Tracking in Vibration Data Utilizing Variable Frequency Drive Signature [PDF]

open access: yesSensors
Variable frequency drives (VFDs) are widely used in industry as an efficient means to control the rotational speed of AC motors by varying the supply frequency to the motor.
Nader Sawalhi
doaj   +2 more sources

TECHNICAL AND ECONOMIC FEASIBILITY OF USING A VARIABLE-FREQUENCY DRIVE IN MICRO-IRRIGATION SYSTEMS [PDF]

open access: yesEngenharia Agrícola, 2021
Irrigation is essential for the development of crops in regions with scarcity or irregular rainfall distribution, enabling high productivity. However, the use of water resources and electrical energy leads to a concern with irrigation efficiency ...
Marinaldo F. Pinto   +4 more
doaj   +1 more source

Choosing variable-frequency drive systems for the mining process units [PDF]

open access: yesE3S Web of Conferences, 2021
Mining enterprises are energy intensive facilities. The capacity of single technological units can reach 5 MW. Variable-frequency drive systems are often used to set them in motion. The paper analyzes the features of choosing and using variable-frequency
Kugusheva Natalia   +5 more
doaj   +1 more source

Technical analysis of flameproof function of variable frequency drive system used in explosive atmosphere

open access: yesMeikuang Anquan, 2021
Compared with the ordinary electric drive system, there is a wide range of explosive environment formed by flammable mixtures in modern industrial production such as coal mines and petrochemicals.
LI Shiguang   +4 more
doaj   +1 more source

Electromechanical Coupling Dynamic Characteristics of Differential Speed Regulation System Considering Inverter Harmonics Under Variable Operating Conditions

open access: yesIEEE Access, 2022
The differential speed regulation system driven by inverters, motors and differential gear trains is a complex electromechanical system that achieves speed regulation and energy savings efficiently and economically.
Dianrui Wang   +4 more
doaj   +1 more source

Effect of Variable Frequency Drive and Pipe Materials on Guava Juice Flow [PDF]

open access: yesArab Universities Journal of Agricultural Sciences, 2022
In this study, a designed variable frequency drive (VFD) was used to control a single-phase induction motor’s speed to pump guava juice at two solid concentrations (9°Bx and 11°Bx).
Shereen Shalaby   +3 more
doaj   +1 more source

The effect of the variable frequency drive of the CNC roll grinding machine on the operation of other devices in low-voltage electrical installation [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2016
This paper presents one of the observations that have been collected during the years of testing of electrical installations. A typical case from industrial plant in which are installed loads with variable frequency regulation is analyzed.
Simić Ninoslav, Mrvić Jovan
doaj   +1 more source

Energy saving system of cascade variable frequency induction electric drive [PDF]

open access: yesE3S Web of Conferences, 2019
This paper discusses the wound rotor induction motor and variable-frequency drive (VFD) that regulates the stator voltage frequency. The stator and rotor windings are connected to a common electrical circuit.
Meshcheryakov V. N.   +3 more
doaj   +1 more source

Speed Control of Induction Motor Using Variable Frequency Driver (VFD) Method Based On Arduino Nano [PDF]

open access: yesMATEC Web of Conferences, 2022
This research aims to control the speed of an induction motor by exploiting changes in the fundamental frequency. The inverter as the main part of the variable frequency driver (VSD) uses the IRFZ44n Mosfet as a power switch with a full bridge topology ...
Rusdi Muhamad   +4 more
doaj   +1 more source

Application of Single-Phase Supply AC-DC-AC VFD for Power Factor Improvement in LED Lighting Devices Loaded Power Distribution Lines

open access: yesApplied Sciences, 2022
More and more light-emitting diode lighting devices (LED) are being connected to modern power distribution lines. In addition to its many positive features, this poses problems in terms of reactive power compensation. The large number of LEDs interacting
Gytis Petrauskas, Gytis Svinkunas
doaj   +1 more source

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