| Abstrakt: |
This research paper provides an accurate analysis of the performance of the motor, especially a single-phase, multi-speed induction motor, as its primary purpose was to calculate the amount of input current, input power, power factor, output power, torque, efficiency, and other detailed calculations, and in return, study any change in their value resulting from a change in some components of the motor, i.e., the four main changes (Skewing rotor bars, overall width, air gap, and capacitor). In this paper, the analysis methodology was used for elements (FEM) through the ANSYS program and its subprograms (RMXprt, MaxwellL2D). Initially, the motor was designed based on its design documents in the RMXprt program, but efforts were made to model the winding of the stator part, as it has multiple speeds and each speed requires manual entries for the number of windings. After that, the form was exported to MaxwellL2D. The results proved the validity of the program's work through comparison with the test results of the design documents. Therefore, after verifying the results, it has become effective in assisting in the design without the need for the high cost of designing a new motor and testing it in a laboratory. The results were good because we obtained an efficiency of 75.44% when the skewed rotor bar degree was equal to 1, and the test at speed was low (890 r.p.m.). Likewise, we obtained efficiency (66.21%) at medium speed (1015 r.p.m.) when we changed the overall width to 118. In addition, the highest efficiency of the motor was obtained (66.90%) if the air gap was changed to 0.5mm at a high speed of 1140 r.p.m. Finally, the capacitance value was changed to (7.2 µf) to obtain the highest efficiency, which is (79.70%) at a low speed of 890 r.p.m. [ABSTRACT FROM AUTHOR] |
