Improving squirrel cage induction motor efficiency: Technical review

Razali, Ramdan; Abdalla, Ahmed N.; Ghoni, Ruzlaini

doi:10.5897/ijps11.395

Cited by 8 publications

(3 citation statements)

References 57 publications

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“…Neglecting the air-gap losses result in motor efficiency: efficiency = rotor power primary losses + rotor power (15) Primary (stator) resistance losses due to the stator current flow in the stationary winding that causes a large amount of dissipation heating power (Razali et al, 2012):…”

Section: Methodsmentioning

confidence: 99%

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Parameters Variation to Estimate Performance Characteristics of 3-Phase Asynchronous Motor

Hikmat Elias,

Shaia Hanna

2023

UKHJSE

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The 3-phase asynchronous squirrel cage motors (SCIM) are main competitor machines placed instead of other motors in the commercial and industrial fields. The stator and rotor material selection and construction topology influence the electrical machine design. The results illustrated with the motor of a 15KW, variable controlled speed, for the constant frequency of 50 Hz or 60 Hz. The motor parameters created inside the simulation model must be matched with the value of a standard parameter for SCIM to achieve a high dynamic response. This work examines the effect of the parameters variation for synchronous motor on the performance characteristics at starting point and at a load change for different time and speed regions. Changing of the rotor power is taken into consideration, this occurs with dynamic change of the hydraulic pump load from the valve.In the industrial applications, production,and manufacturing, till present there are still struggles to find the most holistic environment of the SCIM to achieve its efficiency at the lowest cost and same time control the motor performance, so we predicted the method of reducing the most effective motor parameters to improve the efficiency.The offline method used the SCIM parameters to calculate the time-varying current, torque, and rotor speed. The results illustrated that this method was fully consistent with the experiment tests and the standard theoretical values.A MATLAB program is used to simulate this study. The simulation model proved the feasibility of the proposed method with encouraging performance.

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Section: Methodsmentioning

confidence: 99%

“…Improvements and study of SCIM concerning the equivalent circuit topology researched by Razali (2012). They used intelligent techniques to study the effect of changing motor parameters, such as flux level on the SCIM output characteristic.…”

Section: Related Workmentioning

confidence: 99%

Parameters Variation to Estimate Performance Characteristics of 3-Phase Asynchronous Motor

Hikmat Elias,

Shaia Hanna

2023

UKHJSE

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“…Additional losses in effect of switching and conducting losses which are inside the inverter are not taken into account. Several control structures aiming to minimize losses of a squirrel-cage IM are presented in [5,6]. These methods adapt flux across a motor to operating conditions in order to attain an optimum efficiency point [7].…”

Section: Introductionmentioning

confidence: 99%

Collective Losses of Low Power Cage Induction Motors—A New Approach

Szychta

2021

Energies

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Energy efficiency of systems of water pumping is a complex problem since efficiency of two distinct interacting systems needs to be combined: water and power supply. This paper introduces a non-intrusive method of calculating the so-called “collective losses” of a cage induction motor. The term “collective losses”, which the authors define, allows for accurate estimation of motor efficiency. Control system of a pump determines operating point of a pumping station, and thus its efficiency. General estimated performance characteristics of a motor, components of a control system, are assumed to serve selection of a range of pumping speed variations. Rotational speed has a direct effect on motor load torque, pump power and head, and thus on motor performance. Hellwig’s statistical method was used to specify characteristics of estimated collective losses on the basis of experimental studies of 21 motors rated at up to 2.2 kW. The results of simulations and experiments are used to verify validity and efficiency of the suggested method. The method is non-intrusive, simple to use, and requires minimum data.

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