This paper presents the implementation of a three-leg voltage source inverter fed by brushless DC motor. The open-loop speed control with direct torque is employed in this rotation motor controlled using an optimal vector which related to calculation stator flux and electromechanical torque. experimental results show that system has greater capability reduce spike ripple on voltage, current, fl...

Today, increasing air pollution problem, climate change, rapid depletion of oil reserves and their being expensive cause an increase in environmentally friendly, efficient sustainable work the transportation sector. For this reason, efforts are made to expand use electric hybrid vehicles In study, efficiency 〖CO〗_2 emission effects provided by motor types used compared other vehicle engines est...

This study presents the use and comparison of various bio-inspired algorithms for optimizing the response of a PID controller for a Brushless DC Motor in contrast to the conventional methods of tuning. For the optimization of the PID controllers Genetic Algorithm, Multi-objective Genetic Algorithm and Simulated Annealing have been used. PID controller tuning with soft-computing algorithms compr...

Abstract— Brushless motors are gaining attention from various Industrial manufactures because of its high efficiency, noise less operation and high speeds. In conventional control methods of Brushless Dc motors, the back electromotive force is assumed to be in ideal form i.e., Trapezoidal form, so that rectangular currents are injected from the inverter. In real time, the back-Emf may not to be...

This paper presents a sensorless drive technique for permanent-magnet brushless DC motors applied to electric propulsors of small ships or underwater vehicles. Propulsors enveloping electric motors (e.g., POD or subsea thrusters) have been increasingly applied due to their advantages of excellent maneuverability, high efficiency and low maintenance costs. To secure reliable operation under wate...

This paper describes a simple way to control, in a sensorless way, a Brushless DC (BLDC) motor for electric vehicle applications. To control this machine it is generally required to count with a position sensor because the inverter phases, acting at any time, must be commuted depending on the rotor position. Encoders and resolvers have been used for sensing rotor position with respect to stator...

The major issue for the wheeled mobile robot is the low level controller gains tuning up especially in the robot competition. The floor surface can be damaged by the robot wheels during the competition, therefore the surface coefficient can be changed over time. PI gains have to be tuned before every match along the competition. In this research, the torque controller is defined and implemented...

In this paper, one-cycle control (OCC), as a constant-frequency PWM control strategy for current control of a six-switch brushless dc (BLDC) motor drive is investigated. Developed current regulator is a unified controller and PWM modulator. Employing the one-cycle control strategy, decreases the torque ripple resulted from the conventional hysteresis current controllers and therefore, the vibra...

In this paper, the Nonlinear Model Predictive Control (NMPC) technique is proposed for control of BrushLess Direct Current (BLDC) motors to address problem over-excitation, specifically in Electric Vehicle (EV) applications. This over-excitation increases overall energy consumption machine and eventually reduces vehicle’s driving range. The developed NMPC incorporates a nonlinear model BLDC mot...

Aim of study: To develop a novel four-claw seedling pick-up mechanism to integrate penetration and clamping into one process, realizing picking up seedlings stably efficiently.
 Material methods: A brushless DC servo motor characterized by small size, large torque, high control precision was adopted realize precise for speed force through algorithms. An optimization model derived according...