Quick Design of Switched Reluctance Motor and Effect of Switching Angle ANSYS MAXWELL

This working paper presents a design of the switched reluctance motor (SRM) for the electric scooter using the coefficient method. Experienced designers usually design an electric motor by analytical or magnetic field analysis. Difficulties arise for those who lacked experience in designing reluctance motor. So this working paper aims to produce guidelines to construct a switched reluctance motor. In this working paper, switched reluctance motor is modelled using coefficient method developed as a quick reference in determining the geometry of SRM based on past research. Next, the designed model would be analyzed using ANSYS Maxwell finite elements software. Simulation of the said model is in the Maxwell two dimensions with standard external circuit excitation with different switching angles. The expected outcome can be observed from the effects of switching angle on torque and current winding profile. As a result, the effect of switching is identified

Design a Slot-Less Linear Actuator for Food Processing Application

This paper is about design of slot-less linear oscillatory actuator for food processing application. Linear actuator is a device that produces linear motion without using any mechanical. People are still using traditional or conventional compression method by pressing hand in the moulding device to process the traditional cookies such as samperit and tart. However, this method is no longer practical as it requires a lot of energy and longer time to press the dough which will affect the productivity. The main objective of this research is to design slotless linear actuator for food processing based on desired application. So, a power moulding device embedded with slot-less linear actuator is proposed and simulated using Ansys Maxwell software. In Ansys Maxwell, the analysis of the coil sizing has been carried out in details. The variable parameters that include in this project are number of coil, number of turns, height of coil and gap between coils. As a result, the best model of slot-less linear actuator is chosen based on the required specifications and thrust characteristic. This new device can help to overcome or solve the weaknesses of the conventional compression method. In conclusion, this research provides overview and guidelines of linear actuator for food processing

Winding Arrangement of A New Type Hollow Rotor BLDC Motor

This paper discusses about winding arrangement of fractional slot of a new type hollow rotor Brushless Direct Current (BLDC) motor. Hollow rotor has higher performance compared to other BLDC motor because it minimizes the unused flux below permanent magnet and maximize torque produce by the motor. It’s also known that 8 pole motor is favorite used in industrial because it has an optimum space of permanent magnet for a smaller motor size. The number of pole will affect the maximum speed of the rotor. Thus, the objective of this research is to investigate the best winding arrangement for 8 pole of hollow rotor that could produce the highest electromagnetic performance. At starts, four combinations of slot number and coil sizes had been selected. Structural comparison in term of coil vector and winding arrangement is studied. Finite Element Method (FEM) had been used to simulate the parameters such as backemf and torque waveforms. It was convinced that 9 slot 8 pole with 0.6 size of coil produces the best performance. The confirmed model had been fabricated and measured. Both results from FEM and measurement are compared in term of backemf and torque where percentage differences are 7.4 % and 8 %, respectively. As conclusion, this research shows the fundamental of winding arrangement of fractional slot of motor especially 8 pole motor

Design and Analysis of In-Wheel Double Stator Slotted Rotor BLDC Motor for Electric Bicycle Application

This paper discusses about design and analysis of double stator slotted rotor (DSSR) BLDC motor for electric bicycle application. Usually single stator (SS) BLDC motor is used in an electric bicycle. This type of motor has low performance and need to be charged regularly. The objective of this research is to design and analysis DSSR motor that have high torque. At starts, design specification for the electric bicycle is calculated. Next, design process for DSSR is carried out by using the desired parameter. Lastly, analysis for double stator slotted rotor is simulated using FEM. Result  for average back emf, average inductance, inner stator flux density, outer stator flux density, average torque and estimate torque constant is obtained. Result for average torque from FEM archieve the requirement of motor torque for DSSR design where the maximum average torque is 16.2 Nm. This research will give benefit to mankind and society in term of environment protection and energy consumption