Fırçasız lineer doğru akım motorunun yüksek performanslı konum kontrolü

The history of linear motor technology can be traced back to the 1840s. The first model made by Charles Wheatstone was inefficient and impractical. The first feasible linear motor was created by a German engineer called Alfred Zehden in 1905 to drive trains and lifts [1]. A more fundamental model was later developed by Herman Kemper. The best example of usage of linear motors today are in Maglev trains in Japan. Less than a decade ago, linear motors were only able to move 5 meters per second with straightness, load capacity and stiffness. This is a positive sign that linear motor technology is growing rapidly and is the focus of a great amount of research and development. Linear motors are widely used in the industry as they have a simple structure and their cost to produce is becoming much lower. However, linear motors have low power factor and low efficiency. Modern linear motor applications are demanding greater performance. The key demands of a linear motor are high acceleration, long life, low maintenance, few moving parts and precise positioning. Some of the applications include, DNA sequencing, health operations, rocket positioning etc. Therefore, precision of linear motors is becoming significantly more important. From ideas above, the study involves to control position of linear motor with an interface controller module, it has been create a new algorithm to have precise position control and speed control. The thesis is to demonstrate and explain the position control of a high precision double sided air core linear motor. Linear motor has 22 pole pairs and 6 coils. As the application is having high precision that is applicable to many industrial areas that are listed above. The motor controller is mounted on a platform that is help us to have real time, online control on system. This will be the perfect system that can be mobile and be implemented anywhere is needed. The studied linear motor can be considered like a BLDC machine. In recent years, Brushless Direct current (BLDC) motors have achieved rapid popularity. BLDC motors are used in industries such as appliances, automotive, consumer, medical, industrial automation equipment and instrumentation. They are more reliable and can be used in poor environmental conditions. Unlike brushed motors as these motors have no chance of sparking, makes them better suited to environments with volatile chemicals and fuels. In a brush DC motor, the motor assembly contains a physical commutator which is moved by means of actual brushes in order to move the rotor. With a BLDC motor, electrical current powers a permanent magnet that causes the motor to move, so no physical commutator is necessary. Brushless DC electric motor (BLDC motors, BL motors) known as electronically commutated motors, are synchronous motors that are powered by a DC electric source via an integrated inverter/switching power supply, which produces an AC electric signal to drive the motor. The study has two main research areas: electric powertrain and control unit. This study will focus on both the electric powertrain and control parts of the project. Electrical machines can be separated into two types. These are AC Alternative Current and DC Direct Current machines. The specification of the AC machines is that alternative current flows into the coils and creates a turning magnetic field in the air gap. Unlikely in DC machines magnetic field that is created is straight. Permanent magnet brushless DC motor can have DC in its name but when this specification is held in the case, it enters to an AC machine type. For the linear motor a special control method is produced and laboratory tests are made. Motor laboratory tests are made in Mekatro R&D Company with the designed inverter. The project is finished in the second half of 2014-2015.