Optimal Shape Design of Rotor Slot in Squirrel-Cage Induction Motor Considering Torque Characteristics Abstract: Induction motors are widely used in various industrial applications with different torque-speed characteristics. Since the configuration of the rotor slot has a great impact on the electromagnetic torque-speed characteristics, a Optimization of the geometry of closed rotor slots for Furthermore, optimization of the geometry of the rotor slot for cage induction motors has led to reduced harmonic losses [6] and static airgap eccentricity [7]. The work of [8] discussed the An optimum design of rotor slot shape of induction motor A rotor slot shape of induction motor for electric vehicle is optimized by FEM with the numerical techniques. To optimize the rotor slot shape, two objective function and 3 variables are defined, and the optimization algorithm is developed. To verify Shape Design of a Rotor Bar for Improving Starting Torque Shape Design of a Rotor Bar for Improving Starting Torque And Running Efficiency in Squirrel Cage Induction Motor Ha Jeong Lee1, Sang Hyeon Im1 and Gwan Soo Park1 1School of Electrical and Computer Engineering, Pusan National University, Busan 46241, South Korea gspark@pusan.ac.kr This paper presents a design of rotor bar to improve the starting torque.
INFLUENCE OF STATOR SLOT-SHAPE ON THE ENERGY CONSERVATION ASSOCIATED WITH THE SUBMERSIBLE INDUCTION MOTORS 3.1 INTRODUCTION The electric submersible-pump unit consists of a pump, powered by a medium-voltage three-phase induction motor. The power transmission system is integrated with riser-pipes. Pipe stacks are flanged together, and
An AC-induction-motor rotor lamination has a longitudinal axis and circumferentially spaced apart and closed rotor slots. Each rotor slot includes first through fifth corners, a straight slot base, straight first and second slot sides, and first and second curved sides. The slot base extends from the first corner... How to know the Number of rotor Bars in Induction Motor?… Second, the number of induction motor rotor bars (and thus slots) must be slightly different from the number of stator slots to minimize bothIf a bar (or the bar/ring joint at the end) breaks completely, there will be a measurable torque disturbance and slightly higher thermal loading on the rotor winding... P ) – shaft output power 3-PHASE induction motors examples of motor operation. At the base of equivalent circuit showing one phase of multi-phase motor.is called “electromechanical power” or “ideal power”. Physically it is power transferred from the stator to rotor by means of magnetic field (through the air... When load increases in rotor of induction motor how does… In a three-phase induction motor, the rotating magnetic field of the stator passing through the rotor conductors induces a current in the rotor conductors. Lenz's law states that the current induced in a circuit due to a change or a motion in a magnetic field is so directed as to oppose the change in flux...
Optimization of the geometry of closed rotor slots for ...
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Abstract: On squirrel cage induction motors, there is an important choice between ..... view that the bar takes the shape of the rotor slot. On smaller machines ...
To provide an indication motor rotor capable of improving motor performance by concentrating portions under magnetic saturation conditions of rotor teeth. The rotor of an induction motor of this invention may include slots formed approximately in the shape of a T. The slots may be formed so that top slots are arranged on an outer peripheral ... Optimization of Motor Rotor: Slot Shape, Frame Size, Rotor ... Optimization of Motor Rotor: Slot Shape, Frame Size, Rotor Diameter SLOT SHAPE Designing Squirrel Cage Rotor Slots with High Conductivity I. INTRODUCTION: There has been, in recent years, an effort to make cast copper rotors for industrial use induction motors. The objective is to make motors more efficient because of the higher conductivity of ... CHAPTER 3 INFLUENCE OF STATOR SLOT-SHAPE ON THE ENERGY ... INFLUENCE OF STATOR SLOT-SHAPE ON THE ENERGY CONSERVATION ASSOCIATED WITH THE SUBMERSIBLE INDUCTION MOTORS 3.1 INTRODUCTION The electric submersible-pump unit consists of a pump, powered by a medium-voltage three-phase induction motor. The power transmission system is integrated with riser-pipes. Pipe stacks are flanged together, and
An Approach to evaluate the influence of Stator Slot on…
Induction motors are widely used in various industrial applications with different torque-speed characteristics. Since the configuration of the rotor slot has a great impact on the electromagnetic torque-speed characteristics, a design optimization process is necessary to improve the motor... Production Process: Optimization of Motor Rotor: Slot … SLOT SHAPE. Designing Squirrel Cage Rotor Slots with High Conductivity. I. INTRODUCTION: There has been, in recent years, an effort to make castThe use of copper as the conductor of induction motor rotors would typically lead to improvements in efficiency, relative to motors using aluminum. Traditional Design of Cage Rotor Induction Motors = rotor ac slot leakage reactance rotor dc slot leakage reactance. Skin effect may not be neglected in line-start motors when assessing the startingTraditional induction motor design steps. (continued). 25. Calculate motor performance data from equivalent circuit and compare with results from FEA Determination of Rotor Slot Number of an Induction Motor… Keywords: Induction motor, drive, parameter prediction. 1 Introduction paper reports some results of a research, which aims to investigate the externalBut none of them try to estimate the rotor speed, position and number of rotor slots by an external sensor. However, it is very desirable to be able to...
Stator slots in Induction Motor: For smaller machines up to 20 kW, 600 V and diameter less than 40 cm, semi-closed slots are used.Hence conductors per stator slot = Z ss = 6 T s / S s. Rotor design of Induction Motor: Air gap length depends on: (i) Power factor Design of wound rotor Induction Motor | Matlab Examples Program to design wound rotor induction motor — Input power in kVA = 230.2469 Diameter D = 0.4131 Length L = 0.3659 Flux desity phim = 0.0558 Turns per slot Ts = 33.8151 ASsuming slots per pole per phase as 3 for mechanical reasons Total number of stator slots... Construction of squirrel cage induction motor explained