scholarly journals The Dynamics of Induction Motor Fed Directly from the Isolated Electrical Grid

10.5772/49973 ◽  
2012 ◽  
Author(s):  
Marija Mirosevic
Keyword(s):  
Induction Motor ◽  
Electrical Grid

scholarly journals Correctness in Power Factor of Induction Motor by using Active Filters

2019 ◽  
Vol 8 (12S) ◽  
pp. 148-150
Keyword(s):  
Power System ◽  
Induction Motor ◽  
Power Factor ◽  
Electrical Power ◽  
Induction Machine ◽  
Active Filters ◽  
Electrical Power System ◽  
Active Power Filters ◽  
Electrical Grid ◽  
Power Filters

This paper proposes a novel method of correcting power factor of an induction motor by the making the use of active power filters. In the electrical power system mostly 80% to 85% power factor is reduced by using induction motor as a load in various industries for acting as a prime mover. The induction motor running with a little power factor may cause power quality problems in the electrical power system. Due to very little power factor the load draws high starting current from the electrical grid, this causes various problems like voltage fluctuation, voltage sag and sometimes warmth the winding of the induction machine. Therefore, it is required to develop a method which uses active filters for improving the power factor of the induction motor

scholarly journals Energy Consumption Comparison of a Single Variable-Speed Pump and a System of Two Pumps: Variable-Speed and Fixed-Speed

2020 ◽  
Vol 10 (24) ◽  
pp. 8820
Author(s):  
Safarbek Oshurbekov ◽  
Vadim Kazakbaev ◽  
Vladimir Prakht ◽  
Vladimir Dmitrievskii ◽  
Levon Gevorkov
Keyword(s):  
Energy Consumption ◽  
Induction Motor ◽  
Control Method ◽  
Single Variable ◽  
Variable Speed ◽  
Pump System ◽  
Variable Speed Drive ◽  
Electrical Grid ◽  
Parallel Mode ◽  
Pump Mechanism

The energy efficiency of a multi-pump system consisting of two low-power (0.75 kW) pumps operating in parallel mode and a single-pump mechanism (1.5 kW) is compared in this study. For this purpose, mathematical models, experimental data, and data retrieved from the manuals provided by the pump manufacturers are used. The single-pump system is fed by a single variable speed drive. A multi-pump system running in parallel mode consists of two pumps. One of them is driven by an induction motor connected directly to the electrical grid and equipped with a throttle. Another pump is actuated by an induction motor fed by a variable speed drive. The flowrate of the liquid in the multi-pump is controlled with the help of speed variation and throttling. In the case of the single-pump system the conventional speed control method is applied during the analysis. For both pump system topologies, the daily and annual energy consumption is obtained. As a result of conducted calculations, it was shown that the multi-pump provides 29.8% savings in comparison to the single-pump system in the case of a typical flowrate profile.

Combined Sliding Mode Control with a Feedback Linearization for Speed Control of Induction Motor

2011 ◽  
Vol 7 (1) ◽  
pp. 19-24
Author(s):  
Aamir Hashim Obeid Ahmed ◽  
Martino O. Ajangnay ◽  
Shamboul A. Mohamed ◽  
Matthew W. Dunnigan
Keyword(s):  
Sliding Mode Control ◽  
Induction Motor ◽  
Feedback Linearization ◽  
Sliding Mode ◽  
Speed Control ◽  
Mode Control

A new Technique for Position Control of Induction Motor Using Adaptive Inverse Control

2010 ◽  
Vol 6 (2) ◽  
pp. 116-122
Author(s):  
Aamir Hashim Obeid Ahmed ◽  
Martino O. Ajangnay ◽  
Shamboul A. Mohamed ◽  
Matthew W. Dunnigan
Keyword(s):  
Induction Motor ◽  
Position Control ◽  
New Technique ◽  
Adaptive Inverse Control ◽  
Inverse Control ◽  
A New Technique
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