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As a result of increasing energy demand, effective generation-with high efficiency and low generation costs-of energy is very important. Today, power suppliers are looking for options that might increase the efficiency of the existing systems rather than installing new power stations or adding extra capacity. Maximum utilization of power sources can be achieved with the selection of the most appropriate...
The paper is focusing the comparison of transverse laminated synchronous reluctance motor (TLA) and squirrel cage induction motor for the same power ratings as 4 kW. The motors are general purpose industrial motors which are having the same stator layout but different rotors. The comparison is made in terms of electrical quantities such as induced voltage, current magnetic quantities such as the air...
In this paper, a low power squirrel cage induction motor was modeled by using Finite Element Method (FEM) for the eccentricity cases. Different types of eccentricity (static, dynamic and mixed) at different degrees were studied with the simulation and test results. The effects of the eccentricity on the motor performance in terms of the air gap flux density, current and torque characteristics were...
This paper presents the modeling, simulation and implementation of an inverter fed three-phase squirrel cage induction motor. The drive system and motor are modeled by using PSIM for the speed control and the output quantities are analyzed under different conditions. Frequency, voltage and voltage/frequency ratio variations are analyzed to observe the change in output quantities. The experimental...
In this paper, the design and simulation of the field oriented controlled (FOC) permanent magnet synchronous motor (PMSM) are studied. PMSMs became important to recent years due to their good dynamic performances and better characteristic features. Mathematical model of PMSM is presented in the paper. FOC scheme, which is one of the most commonly used control methods of industrial applications, is...
This paper presents a comparison study on the different type of motors used in cooker hood applications. Single phase split capacitor induction motor is taken as a reference machine. Alternative motor types are investigated and analyzed in terms of cost, construction and efficiency. Candidate motors include single phase shaded pole induction and brushless DC motor types. The reference motor tested...
There are applications in which machines with very low exterior magnetic fields and low vibrations are required. This article presents a novel motor topology which has essentially none of the normal sources of magnetic alternating force. There is no 2E core vibration, no vibrations at slot passing frequencies and very low 6E torque pulsations. The motor also has the property that the external magnetic...
In this paper, the asymmetric operational conditions of induction motors and the consequence of these operations are presented. The small power squirrel cage induction motor is modeled dynamically by using Finite Element Method (FEM) for both healthy and eccentric conditions. Different degrees of static eccentricity are examined with the simulation results. The differences between the air gap flux...
Brushless DC motors are used in different type of motor applications. While brushless DC motors used in space and military applications require high reliability and high performance, they require low cost and high efficiency in daily life applications. Obtaining higher performance with the same cost level is a remarkable and competitive factor in the market. In this study, the performance effects...
This paper presents the performance analysis of a solid exterior rotor brushless direct current motor (BLDC), which is produced as a washing machine motor. Experimental results of the motor are presented and a dynamic model of the motor is modeled by using Finite Element Method. Various performance characteristics are obtained and compared to the experimental results.
In this paper, firstly, the structural features and operating conditions of a universal motor are presented. Alternating current (AC) and direct current (DC) operating conditions of the motor and the difference between them are explained. Universal motors give similar speed and torque characteristics on both AC and DC operations when the effective current is kept equal. When AC and DC operations are...
In this paper, skewing effect is analyzed in permanent magnet Brushless Direct Current motor (BLDC). Skewing is a common used method especially for reducing cogging torque. Test motor is an interior type BLDC motor with 24 slots and 4 poles. In this work, Test BLDC motor is analyzed for different skewing angles (2.5, 5, ...,15 degrees) at stator to find an optimum skew angle for reducing the cogging...
This paper presents the different calculating methods of stator end turn leakage inductance at brushless dc motors (BLDC) with different winding types. The calculations are carried both analytically and numerically. The results of the two dimensional (2D) calculations have been compared with the results of three dimensional (3D) ones for the same motor. Finite Element Method (FEM) is used for 2D and...
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