A REVIEW OF BLDC MOTOR FOR ELEVATOR APPLICATION

Permanent magnet synchronous motor has attracted by various applications such as commercial, domestic and industrial due to low cost and its several advantages. The main purpose of this paper is to describe Brushless DC (BLDC) motor drive for industrial applications. Conventional six switch inverter drive of PMBLDC motor is replaced by four switch PMBLDC motor drive for industrial applications to make the system simple and less expensive. A comparative study of both, six switch drive circuit and four switch drive circuit for PMBLDC motor used in industrial application has been discussed. Performance and result is explained in terms of back EMF, torque-speed characteristics of PMBLDC motor for both drives. The simulation results are carried out in MATLAB-Simulink software to compare the results.

BLDC motor is the permanent magnet synchronous motor designed to have a trapezoidal back emf. Due to rugged construction, less control complexity, higher power density, variable speed over a wide range and flexibility to select the rotor construction suitable for particular application, it is being viewed as an alternative for conventional a.c. motors right from residential to commercial & aerospace systems. Rotation of BLDC motor is achieved by energizing the stator phases in a sequence, which depends on the rotor position. Hall sensors are used to detect the exact position of the rotor. This paper presents design of BLDC motor drive. For the purpose of demonstration, the popularly used loads are considered for industrial application, electric traction system.

The BLDC motor is an electronically commutated dc motor becoming very popular in many applications. There are various speed control methods used for BLDC motor. The performance of BLDC motor drives can be improved using sensored control techniques over sensorless technology. This paper presents Brushless Direct Current motor drive system and its sensored speed control technique with PWM. Advantages and limitations of sensorless techniques are reviewed and then, sensored speed control technique is introduced with their advantages, performance analysis, practical implementation and applications. Torque and speed behavior during clockwise and anticlockwise motion, use of hall sensors to detect rotor position, speed control technique using PWM method are discussed in detail. Detailed hardware design its implementation and experimental results covered. This paper also covers performance analysis of BLDC motor using experimental results.

Afyon Kocatepe University Journal of Sciences and Engineering

The popularity of electrical vehicles is increasing rapidly in recent years due to energy generation/consumption ratio, transportation costs, decrease in fossil fuel reserves with increasing population as well as the environmental damage caused by fossil fuels. Therefore, Brushless Direct Current (BLDC) Motor design was actualized in the present study for use in electrical vehicles expected to replace the transportation vehicles of today. Firstly, analytical design of the targeted motor was completed after which the Finite Elements Method was used for modelling. Ansys Maxwell Program is one of the package programs used in FEM. This study was carried out with Ansys Maxwell Electromagnetic Suite version 17.2. The prototype motor was manufactured after reaching the desired results with Finite Elements Method and experimental studies commenced with the experiment setup prepared in the laboratory environment. Experimental results were compared with electromagnetic results. Finally, the prototype motor was mounted on the ElektroGOP vehicle and it was observed to work without problem at the expected performance during the test drives.

IEEE Access

Brushless direct current (BLDC) motors are mostly preferred for dynamic applications such as automotive industries, pumping industries, and rolling industries. It is predicted that by 2030, BLDC motors will become mainstream of power transmission in industries replacing traditional induction motors. Though the BLDC motors are gaining interest in industrial and commercial applications, the future of BLDC motors faces indispensable concerns and open research challenges. Considering the case of reliability and durability, the BLDC motor fails to yield improved fault tolerance capability, reduced electromagnetic interference, reduced acoustic noise, reduced flux ripple, and reduced torque ripple. To address these issues, closed-loop vector control is a promising methodology for BLDC motors. In the literature survey of the past five years, limited surveys were conducted on BLDC motor controllers and designing. Moreover, vital problems such as comparison between existing vector control schemes, fault tolerance control improvement, reduction in electromagnetic interference in BLDC motor controller, and other issues are not addressed. This encourages the author in conducting this survey of addressing the critical challenges of BLDC motors. Furthermore, comprehensive study on various advanced controls of BLDC motors such as fault tolerance control, Electromagnetic interference reduction, field orientation control (FOC), direct torque control (DTC), current shaping, input voltage control, intelligent control, drive-inverter topology, and its principle of operation in reducing torque ripples are discussed in detail. This paper also discusses BLDC motor history, types of BLDC motor, BLDC motor structure, Mathematical modeling of BLDC and BLDC motor standards for various applications. INDEX TERMS BLDC motor, torque ripple, current shaping techniques, controlling input voltage, direct torque control, drive-inverter topology, field orientation control, motor design, fault tolerance control, electromagnetic interference reduction. ABBREVIATION ANN Artificial Neural Network. ASD Adjustable Speed Drives. BEMF Back Electro-Motive Force. BLDC Brushless DC Motor. CF Cost Function. DTC Direct Torque Control. EMF Electro Magnetic Field.

International journal of engineering research and technology, 2016

Brushless DC (BLDC) motors are widely used from hard disc to hybrid electric vehicle. The major menace is power quality issues which include Power Quality (PQ) indices viz.DPF (Displacement power Factor), PF (Power Factor) CF (Crest Factor) and THD (Total Harmonics Distortion) of the supply current at AC mains with in specified limit by International Electro Technical Commission PQ standards viz IEC 61000-3-2 , IEC 555-2 and IEC-519 of speed control for class-A equipment < 600W, 16 A per phase. Machine control and drives could be optimized by applying different control techniques. Various methods for PFC such as buck, boost, buck/boost, Cuk, SEPIC, Zeta, push-pull, half bridge, full bridge are presented based on the motor control side.

2013

BLDC Motors have been gaining enormous applications & increasing popularity because of higher efficiency & speed in comparison to the conventional DC Motors. These motors find higher rating applications in aircraft; satellite systems as well as in traction systems. Since an “electronic controller” is the most efficient part of these BLDC Motors as they can’t operate without them, thereby, in this paper the modeling of Brushless DC Motor drive system along with the speed & torque control is accomplished with the usage of semiconductor switching devices such as MOSFET & JFET and their corresponding results have been compared & analyzed. Test results are performed via MATLAB/SIMULINK and the results thus, obtained show that the model performances are satisfactory.

International Journal of Power Electronics and Drive System, 2023

Linear permanent magnet synchronous motor (LPMSM) has emerged as a viable alternative to other linear motors for higher thrust lifting action. With the advancement of permanent magnets, LPMSM could contribute to energy conversation while also being suitable for applications requiring higher thrust, such as elevator. However, because the existing LPMSM is larger in size, it requires more space to be equipped with a household elevator. To address this issue, a new LPMSM with increased thrust capability has been proposed. The new LPMSM is modelled and analyzed in terms of back EMF and force in this paper. For improved performance, a symmetrical EMF vector is applied to the new LPMSM. In terms of back EMF and force, 4 LPMSM models are studied. According to the results, 6 slot 4 pole has the highest back EMF when compared to the others. As a suitable combination of slot and pole, a symmetrical EMF vector is the suggested LPMSM at the end of this research.

This project aims to develop a BLDC motor controller and assemble it by using friction drive technique to the bicycle. One focus of this objective was designing a motor controller and traction system easy to apply on bicycles. A number of commercial motor control techniques have been investigated for feasibility along with the relevant theory behind controlling BLDC motors. The scope of this project covers power systems, feedback control of brushless DC (BLDC) motors, and input signal conditioning. Another focus of this objective was designing a traction system, which can made by printing the mechanical part with a 3D printer. This process makes easy and flexible to assemble the system on different bicycles. Overall, this project provides the core tractive system while providing a solid basis for future projects.

In present days, Brushless DC Motor (BLDC) is the superlative motor that is growing universally because of dependability, effectiveness, less maintenance, and better dynamic response. Due to the above-mentioned progress, BLDC is freshly utilized in various applications such as vehicles, machines, high voltage, and internal pieces of equipment. Furthermore, the proportion of torque distributed to motor size is greater in all the applications where load space models are considered as severe characteristics. BLDC motors are extensively applied in numerous productions and quickly increase in electrical equipment and industrial materials for electrical drives. The recent intellectual motion presentations request precise position and speed control because of the promising machine-driven and power-driven assets of BLDC. Till now, so many control procedures have been established to increase the BLDC motor performance. For the past few years, scholars are restricted in the direction of expansion for BLDC, as demonstrating greater to the traditional motor drives. This research paper provides a concept of numerous approaches, controllers for BLDC electric motor and current developments.