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Journal articles on the topic 'Variable speed drives'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

BARTON, T. H. "VARIABLE FREQUENCY VARIABLE SPEED AC DRIVES." Electric Machines & Power Systems 12, no. 3 (1987): 143–63. http://dx.doi.org/10.1080/07313568708960100.

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2

Drury, W., and D. Grant. "Variable-speed drives - the future." Power Engineering Journal 8, no. 1 (1994): 27–34. http://dx.doi.org/10.1049/pe:19940103.

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3

Strangas, E. G., V. E. Wagner, and T. D. Unruh. "Variable speed drives evaluation test." IEEE Industry Applications Magazine 4, no. 1 (1998): 53–57. http://dx.doi.org/10.1109/2943.644887.

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4

Herák, D., V. Šleger, R. Chotěborský, K. Houška, and E. Janča. "Kinematical characteristic of mechanical frictional variable speed drive." Research in Agricultural Engineering 52, No. 2 (2012): 61–68. http://dx.doi.org/10.17221/4881-rae.

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The paper describes a new system of mechanical spherical conical friction drive. In the present a row of simple friction, belt, chain, wave and differential variable speed drives is published. For the required range of speed variation they are altogether unfit. The currently used power transmissions are of low efficiency (60&ndash;70%). Therefore the better power transmission efficiency is required. The possibility of multicontact power transmission appears as the most suitable principle of the power transmission. Using the designed function model, which was made according to the small tra

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5

Davis, R. M. "Power Electronics and Variable Speed Drives." Power Engineering Journal 3, no. 6 (1989): 310. http://dx.doi.org/10.1049/pe:19890052.

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6

Stokes, R. W. "Power Electronics and Variable Speed Drives." Power Engineering Journal 5, no. 5 (1991): 248. http://dx.doi.org/10.1049/pe:19910048.

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7

Medford, D. C. "Power Electronics and Variable Speed Drives." IEE Review 35, no. 1 (1989): 36. http://dx.doi.org/10.1049/ir:19890014.

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8

Bodson, J. M. "Digital Control Improves Variable Speed Drives." EPE Journal 2, no. 4 (1992): 243–48. http://dx.doi.org/10.1080/09398368.1992.11463303.

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9

Tolvanen, Jukka. "Saving energy with variable speed drives." World Pumps 2008, no. 501 (2008): 32–33. http://dx.doi.org/10.1016/s0262-1762(08)70164-0.

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10

Bassarear, J. H., and P. F. Thomas. "Variable speed drives for semiautogenous mills." Mining, Metallurgy & Exploration 3, no. 2 (1986): 136–44. http://dx.doi.org/10.1007/bf03402650.

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11

Darley, Dana. "Conveying Savings via Variable Speed Drives." Plastics Engineering 70, no. 2 (2014): 40–41. http://dx.doi.org/10.1002/j.1941-9635.2014.tb01124.x.

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12

Hasan, Md Ehtesham, K. Dasgupta, and Sanjoy Ghoshal. "Comparison of the efficiency of the high speed low torque hydrostatic drives using bent axis motor: An experimental study." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 231, no. 4 (2015): 650–66. http://dx.doi.org/10.1177/0954408915622413.

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This article is aimed at analysing the steady-state performance of four hydrostatic drives and compares their overall efficiency. The speed of the hydrostatic drives is controlled by speed controlled vane pump, variable displacement flow compensated pump, variable displacement pressure compensated pump and proportional direction controlled valve. Bondgraph simulation technique is used to model the hydrostatic drive. The relationships of the loss coefficients with the state variables obtained from the model are identified through experimental investigation. Using them, at different torque level

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13

Zagar, Philipp, Helmut Kogler, Rudolf Scheidl, and Bernd Winkler. "Hydraulic Switching Control Supplementing Speed Variable Hydraulic Drives." Actuators 9, no. 4 (2020): 129. http://dx.doi.org/10.3390/act9040129.

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Primary control of linear motion by variable speed electric motors driving a hydraulic cylinder via a constant displacement pump is an established and successful concept with a frequent use in industry. One problem arises when low or zero motion speed has to be realized under high pump pressure conditions. Such load scenarios occur frequently in certain pressing processes, e.g., for sintering or veneering. Most pumps have a lower speed limit, below which critical tribological conditions occur which impair lifespan and efficiency. In addition, pump speed control and pump fluctuation suffer from

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14

Hudgins, Jerry, and Rik De Doncker. "Power Semiconductor Devices: For Variable Speed Drives." IEEE Industry Applications Magazine 18, no. 4 (2012): 18–25. http://dx.doi.org/10.1109/mias.2012.2191341.

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15

Ritchie, Neil, and Martin Briant. "Variable speed drives cuts 20% energy costs." World Pumps 2014, no. 10 (2014): 18–19. http://dx.doi.org/10.1016/s0262-1762(14)70237-8.

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16

Gibson, Ian H. "Variable-speed drives as flow control elements." ISA Transactions 33, no. 2 (1994): 165–69. http://dx.doi.org/10.1016/0019-0578(94)90049-3.

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17

Johar, Leily Wustha, S. Umar Djufri, and Hendi Matalata. "Perancangan VFD Motor Induksi 1 Phase Untuk Pengaturan Awal Kecepatan Mobil Listrik." Journal of Electrical Power Control and Automation (JEPCA) 4, no. 2 (2021): 47. http://dx.doi.org/10.33087/jepca.v4i2.51.

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Variable speed drives and the importance of controlling the speed of existing motors have attracted much attention with the advent of new electrical devices and magnetic materials. This paper is a comprehensive review of the application of VFD in energy saving electric motors. The aim is to identify energy saving opportunities and apply variable speed drives to existing electric motor applications. In this paper the authors hope to provide useful information for future variable speed drive applications such as fans, pumps, coolers, ventilators and as electric car propulsion. In this study, a s

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18

Nivedita, Chakraborty *. "FOUR QUADRANT OPERATION OF DUAL CONVERTER BASED DC DRIVES." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 1 (2017): 399–406. https://doi.org/10.5281/zenodo.259615.

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With recent advances in Power Electronics, electric variable-speed Drives are witnessing a revolution in various applications. Power electronic devices are becoming able to easily tailer the rigid characteristics of the motor (when driven from a fixed DC or AC supply source) to the requirements of load. Because of inherent ease of speed control of the separately excited DC machine, DC drives are used in rolling mills, paper mills, mine winders, hoists, machine tools, traction, printing presses, textile mills, excavators and cranes etc., where speed control is done by varying the applied armatu

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19

Guerrero, Jose Manuel, Gustavo Navarro, Kumar Mahtani, and Carlos Platero. "Ground Fault Detection Method for Variable Speed Drives." IEEE Transactions on Industry Applications 57, no. 3 (2021): 2547–58. http://dx.doi.org/10.1109/tia.2021.3064001.

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20

Yacamini, R., P. Brogan, W. Phang, and A. Scott. "Variable speed drives for remote downhole pump applications." Power Engineering Journal 14, no. 1 (2000): 29–36. http://dx.doi.org/10.1049/pe:20000105.

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21

Sbarbaro, Daniel. "CONTROL OF CRUSHING CIRCUITS WITH VARIABLE SPEED DRIVES." IFAC Proceedings Volumes 38, no. 1 (2005): 80–84. http://dx.doi.org/10.3182/20050703-6-cz-1902.01692.

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22

Stronach, A. F., and P. Vas. "Variable-speed drives incorporating interacting multiloop adaptive controllers." IEE Proceedings - Control Theory and Applications 142, no. 5 (1995): 411–19. http://dx.doi.org/10.1049/ip-cta:19951981.

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23

Hall, J. K. "Book review: Power Electronics and Variable-Speed Drives." IEE Proceedings B Electric Power Applications 132, no. 2 (1985): 115. http://dx.doi.org/10.1049/ip-b.1985.0016.

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24

Bartolucci, E. J., and B. H. Finke. "Cable design for PWM variable-speed AC drives." IEEE Transactions on Industry Applications 37, no. 2 (2001): 415–22. http://dx.doi.org/10.1109/28.913704.

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25

Lönnberg, Mikko. "Variable Speed Drives for energy savings in hospitals." World Pumps 2007, no. 494 (2007): 20–24. http://dx.doi.org/10.1016/s0262-1762(07)70395-4.

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26

Schmidt, Lasse, and Kenneth Vorbøl Hansen. "Electro-Hydraulic Variable-Speed Drive Networks—Idea, Perspectives, and Energy Saving Potentials." Energies 15, no. 3 (2022): 1228. http://dx.doi.org/10.3390/en15031228.

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Electro-hydraulic differential cylinder drives with variable-speed displacement units as their central transmission element are subject to an increasing focus in both industry and academia. A main reason is the potential for substantial efficiency increases due to avoidance of throttling of the main flows. Research contributions have mainly been focusing on appropriate compensation of volume asymmetry and the development of standalone self-contained and compact solutions, with all necessary functions onboard. However, as many hydraulic actuator systems encompass multiple cylinders, such approa

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27

NANDAM, PRADEEP K., and P. C. SEN. "Control laws for sliding mode speed control of variable speed drives." International Journal of Control 56, no. 5 (1992): 1167–86. http://dx.doi.org/10.1080/00207179208934362.

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28

Obukhova, Elena N., Vyacheslav I. Grishchenko, and Grigoriy A. Dolgov. "Formalization of dynamic model of pneumatic drive with variable structure." MATEC Web of Conferences 226 (2018): 02022. http://dx.doi.org/10.1051/matecconf/201822602022.

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The work is devoted to solving the actual technical problem of increasing the speed and accuracy of pneumatic servo drives. Pneumatic drives have a large number of advantages (high speed of the output link, environmental friendliness, low cost, etc.). But having a high compressibility of compressed air limits the possibility of realizing optimal trajectories of motion of control objects. The complexity in the organization of controlling the follow-up pneumatic drive is also introduced by a mathematical apparatus that takes into account the thermodynamic processes during the filling and emptyin

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29

Vladimir, L. Kodkin, and S. Anikin Aleksandr. "Experimental study of the VFD's speed stabilization efficiency under torque disturbances." International Journal of Power Electronics and Drive System (IJPEDS) 12, no. 1 (2021): 80–87. https://doi.org/10.11591/ijpeds.v12.i1.pp80-87.

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The article presents a technique for experimental research of variable frequency drives experiencing periodic torque disturbances of variable frequency. The technique is based on the nonlinear transfer function of a link of an asynchronous electric motor, which forms an electromagnetic torque, proposed in previously published articles. The dependence of the transfer function on the frequency of the stator voltage and slip determines the research methodology. Experiments have shown the advantage of the dynamic characteristics of a drive with a positive feedback on the stator current over electr

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30

Vodovozov, Valery, and Ilja Bakman. "Performance Improvement of Pumps Fed by the Variable Speed Drives." Electrical, Control and Communication Engineering 4, no. 1 (2013): 45–51. http://dx.doi.org/10.2478/ecce-2013-0021.

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Abstract Speed inaccuracy decreases the pump efficiency, reliability, and energy saving. This research is devoted to the determination of the ways of accurate speed control of the pump drives operated under changeable loads. The impact of speed inaccuracy on the pump performance is studied. Based on the analysis of methods for the static accuracy improvement, the drawbacks of the traditional approaches have been shown with reference to the pumping applications. A new methodology of the slip compensation has been proposed for implementation to improve the scalar drive performance. It notably de

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31

Sharkov, Oleg, Sergey Koryagin, and Nikolay Velikanov. "Research of working capacity of pulsed variable-speed drives." MATEC Web of Conferences 287 (2019): 07002. http://dx.doi.org/10.1051/matecconf/201928707002.

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The paper presents the results of experimental researches of the basic working capacity characteristics of pulsed variable-speed drives - gear ratio, efficiency factor, and reliability of the eccentric free-wheel mechanisms When conducting research, the main working capacity parameters of the pulsed variable-speed drive (independent factors) changed according to the design of experiment in the range: the load applied to the output shaft was from 250 to 2.750 N·m; adjustable gear ratio - from 20 to 180. It was established that the reliability of the eccentric free-wheel mechanisms is guaranteed

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32

Ram, Ganapathy, and Santha K R. "Review of Sliding Mode Observers for Sensorless Control of Permanent Magnet Synchronous Motor Drives." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 1 (2018): 46. http://dx.doi.org/10.11591/ijpeds.v9.i1.pp46-54.

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Permanent magnet synchronous motors (PMSMs) are increasingly used in high performance variable speed drives of many industrial applications. PMSM has many features, like high efficiency, compactness, high torque to inertia ratio, rapid dynamic response, simple modeling and control, and maintenance free operation. Presence of position sensors presents several disadvantages, such as reduced reliability, susceptibility to noise, additional cost and weight and increased complexity of the drive system. For these reasons, the development of alternative indirect methods for speed and position control

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33

SZCZYPIŃSKI-SALA, Wojciech, Krzysztof DOBAJ, and Adam KOT. "FRICTIONAL PROBLEMS IN CONTINUOUSLY VARIABLE TRANSMISSION BELT DRIVES." Tribologia, no. 5 (October 31, 2017): 93–100. http://dx.doi.org/10.5604/01.3001.0010.5923.

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The article describes the results of the research carried out on the evaluation of the influence of friction pairs (rubber belt – belt pulley in belt drive) on the ability to transmit power. In order to determine the characteristics of the belt drive operation, measurements were made on a real belt drive from the drive train of a light two-wheeled vehicle. The measurement was carried out in conditions of changes in the dynamic load. The measurements of the belt slip on the belt pulley within the whole range of the changes of gear ratios and angular speed of the engine were made. During the tes

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34

Sadek, Mohamed, Rehab El-Maghraby, and Mohamed Fathy. "Evaluation of variable speed drives to improve energy efficiency and reduce gas emissions: Case study." Chemical Industry and Chemical Engineering Quarterly, no. 00 (2022): 18. http://dx.doi.org/10.2298/ciceq220318018s.

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Variable speed drives are the most promising technique to reduce electric motors energy consumption. This paper discusses energy savings achieved by installing variable speed drives to control rotating equipment motors such as pumps, compressors, blowers, and fans in oil processing facilities. In addition to energy savings, variable speed drives will improve overall equipment efficiency, increase reliability, and reduce greenhouse gases (GHG) emissions. An Energy audit was performed on a case study to investigate energy consumption for all electric motors. Technical and operational constraints

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35

Al – Tahir, Ali Abdul Razzaq. "Sensorless online measurements: application to variable speed drive systems." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 37, no. 1 (2018): 29–53. http://dx.doi.org/10.1108/compel-10-2016-0453.

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Purpose Sensorless online measurements, application of variable speed drives has been given a great attention, especially over the past few years. In most of the previous literates dealing with permanent magnet synchronous motor (PMSM) drives, the combination of inter-sampled behavior with high gain design approach has not been discussed yet. This paper aims to discuss this feature in-depth. Design/methodology/approach The study contains a different approach for an observer running with surface-mounted permanent magnet synchronous machine drives to implement sensorless control. Design of sampl

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36

Glazyrin, Alexander S., Sergey N. Kladiev, Vadim V. Timoshkin, et al. "SETUP AND INVESTIGATION OF THE OPERATION MODES OF THE SPEED OBSERVER IN A CONTROLLED DC ELECTRIC DRIVE." ELECTRICAL AND DATA PROCESSING FACILITIES AND SYSTEMS 19, no. 2 (2023): 30–42. http://dx.doi.org/10.17122/1999-5458-2023-19-2-30-42.

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In modern closed-loop controlled electric drives used in manufacturing, the use of speed, current, torque, and other technological variable sensors is required. In some cases, indirect estimation of the electric drive state vector is required, when the use of technological parameter sensors (primarily speed sensors) is difficult or impossible. One of the problems is the length of the information cable in the feedback channel from the actuator to the power converter, which makes it difficult to use direct measurement methods. There are also difficulties in using sensors in an aggressive environ

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37

N.V.D.Surendra, Reddy*1 &. P.Madhu Chandra2. "HIGH SPEED ELECTRIC DRIVE WITH MULTILEVEL INVERTER FOR EXHAUST GAS ENERGY RECOVERY APPLICATIONS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 5, no. 6 (2018): 42–51. https://doi.org/10.5281/zenodo.1262373.

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Electric drives offer an opportunity for efficient use of natural resources clean and (comparatively) quiet power conversion, improved process control, and very attractive life-cycle cost. High-speed electric drives utilize technology (including variable speed control) to meet the needs of a rapidly changing industrial world. This paper deals with the solutions for developing the direct coupled electric drive to be used in combination with a radial turbo-expander for exhaust energy recovery in automotive applications. The descriptions of project realization of both the axial-flux permanent-mag

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38

Pylaev, B. V. "Shaping of Cams for High-Torque Variable-Speed Drives." Russian Engineering Research 39, no. 8 (2019): 645–49. http://dx.doi.org/10.3103/s1068798x19080161.

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39

Othman, Saba A., Jamal A. K. Mohammed, and Farag Mahel Mohammed. "Variable Speed Drives in Electric Elevator Systems: A Review." Journal of Physics: Conference Series 1973, no. 1 (2021): 012028. http://dx.doi.org/10.1088/1742-6596/1973/1/012028.

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40

Ghoneam, Sobhy, M., Samir, M. Abdel-Rahman, and Dalia, M. El–Gazzar,. "VIBRATION ANALYSIS OF CENTRIFUGAL PUMP WITH VARIABLE SPEED DRIVES." JES. Journal of Engineering Sciences 39, no. 3 (2011): 565–79. http://dx.doi.org/10.21608/jesaun.2011.127663.

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41

Drury, W. "Electrical variable-speed drives: mature consumable or radical infant?" Power Engineering Journal 13, no. 2 (1999): 65–78. http://dx.doi.org/10.1049/pe:19990205.

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42

Hwi-Beon Shin. "New antiwindup PI controller for variable-speed motor drives." IEEE Transactions on Industrial Electronics 45, no. 3 (1998): 445–50. http://dx.doi.org/10.1109/41.679002.

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43

McCulloch, M. D., C. F. Landy, W. Levy, and I. MacLeod. "CASED: A simulation package designed for variable speed drives." SIMULATION 57, no. 4 (1991): 216–26. http://dx.doi.org/10.1177/003754979105700404.

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44

Bowes, S. R., and T. Davies. "Microprocessor-based development system for PWM variable-speed drives." IEE Proceedings B Electric Power Applications 132, no. 1 (1985): 18. http://dx.doi.org/10.1049/ip-b.1985.0002.

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45

Lockwood, M. "Simulation of unstable oscillations in PWM variable-speed drives." IEEE Transactions on Industry Applications 24, no. 1 (1988): 137–41. http://dx.doi.org/10.1109/28.87264.

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46

Sequeira, Melwyn, and Sanath Alahakoon. "Energy efficient variable speed drives empowered with torque estimation." Energy Procedia 160 (February 2019): 194–201. http://dx.doi.org/10.1016/j.egypro.2019.02.136.

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47

Campos-Delgado, D. U., D. R. Espinoza-Trejo, and E. Palacios. "Fault-tolerant control in variable speed drives: a survey." IET Electric Power Applications 2, no. 2 (2008): 121–34. http://dx.doi.org/10.1049/iet-epa:20070203.

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48

Militão, Lucas A., Caio D. Fernandes, Diego dos Santos, et al. "A novel cooling geometry for subsea variable speed drives." Applied Thermal Engineering 185 (February 2021): 116483. http://dx.doi.org/10.1016/j.applthermaleng.2020.116483.

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49

Kodkin, Vladimir L., and Aleksandr S. Anikin. "Experimental study of the VFD’s speed stabilization efficiency under torque disturbances." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 1 (2021): 80. http://dx.doi.org/10.11591/ijpeds.v12.i1.pp80-87.

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Abstract:

The article presents a technique for experimental research of variable frequency drives experiencing periodic torque disturbances of variable frequency. The technique is based on the nonlinear transfer function of a link of an asynchronous electric motor, which forms an electromagnetic torque, proposed in previously published articles. The dependence of the transfer function on the frequency of the stator voltage and slip determines the research methodology. Experiments have shown the advantage of the dynamic characteristics of a drive with a positive feedback on the stator current over electr

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50

Gallo, D., C. Landi, and N. Pasquino. "Experimental Evaluation of Conducted Emissions by Variable-Speed Drives Under Variable Operating Conditions." IEEE Transactions on Instrumentation and Measurement 57, no. 7 (2008): 1350–56. http://dx.doi.org/10.1109/tim.2008.917176.

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