This paper presents a fuzzy logic controller for brushless direct current (BLDC) permanent magnet motor drives. Initially a fuzzy logic controller is developed using MATLAB Fuzzy-Logic Toolbox and then inserted into the Simulink model. The dynamic characteristics of the brushless DC motor such as speed, torque, current and voltage of the inverter components are observed and analyzed using the d...

Variable speed drive systems of brushless DC motors have been widely used for industry applications, home electric appliances, and so on, due to the progress of the power electronics, because of simple structure, easy maintenance, high efficiency, etc.. Moreover, because the brushless DC motor can realize the same high performance as DC motor, it is used in the fields where the high speed and h...

6.0 Experiment 2: 6.1 Evolving coil switching pattern generators for a brushless DC motor 6.2 Brushless Motors – principles of operation 6.3 Experimental setup 6.4 Power driver design 6.5 Fitness function 6.6 Problems and issues that arose during testing 6.7 Evolving a controller for a fully functioning motor 6.8 Evolving a controller with random coil failures 6.9 Evaluating a normal controller...

This article introduces a sort of intelligent brushless DC motor driver and its concrete application in electric bicycle, and discusses the hardware and software design scheme of the controller, and realizes the speed control, over-current protection and battery under-voltage protection of the brushless DC motor. And the experiment result indicates that the control effect is good, and it could ...

This paper uses the flux-MMF diagram to compare and contrast the torque production mechanism in seven common types of electric motor. The flux-mmf diagram is a generaked version of the flux-linkage versus current (+i) diagram €or switched-reluctance motors. It is illustrated €or switchedreluctance, synchronous-reluctance, induction, brushless ac, brushless dc, interior PM and dc commutator moto...

This paper presents a method to reduce the commutation torque ripple in a position sensorless brushless DC motor drive. To compensate the commutation torque ripple considerably, the duration of commutation must be known. The proposed method measures the duration of commutation from the terminal voltage of the motor, calculates a PWM duty ratio using the measured commutation interval to suppress...

This paper present the modeling, analysis of 8/6 SRM using Fuzzy logic with Hybrid observer algorithm. In this algorithm the estimation of rotor position speed and error of speed is measured respectively. This algorithm has been simulated with MATLAB / Simulink for non-linear model of 8/6 SRM and has been designed with Hybrid observer using Current Sliding Mode Observer and Flux Linkage Mode Ob...

Using a top-down design methodology, two levels of hybrid electric vehicle power system are presented in the paper. At the highest abstraction level, a behavior modeling method is used to develop models for 3-phase AC/DC converter and brushless DC motor controller, which reduce the simulation time without compromise of accuracy. At the second level of design, six diodes along with delta-delta a...

Received Nov 21, 2017 Revised Jan 29, 2018 Accepted Feb 17, 2018 This paper presents a performance investigation of bldc motor employing KY converter. Conventional The landsman converter is used to minimize the ripples but the inverter produces high output power ripples, which in turn affect the output of the inverter in The proposed KY converter reduces ripples and smooth dc supply gives to th...