Types Of Motors And Their Applications Pdf
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The motor is used to convert an electrical form of energy into mechanical form. According to the type of supply, motors are classified as AC motors and DC motors. In today post, we will discuss the different types of three phase induction motors with working and applications.
All About Motors
Electric vehicles are not something new to this world, but with the technological advancement and increased concern on controlling pollution has given it a tag of future mobility. The rapid development in the field of Power electronics and control techniques has created a space for various types of electric motors to be used in Electric Vehicles. The electric motors used for automotive applications should have characteristics like high starting torque, high power density, good efficiency, etc. High starting torque capability of the DC Series motor makes it a suitable option for traction application. It was the most widely used motor for traction application in the early s.
As we know, an electric motor plays a vital role in every sector of the industry, and also in a wide range of applications. There are a variety of types of electric motors are available in the market. The selection of these motors can be done based on the operation and voltage and applications. The main function of field winding is to produce the fixed magnetic field, whereas the armature winding looks like a conductor which is arranged within the magnetic field. Because of the magnetic field, the armature winding uses energy to generate an adequate torque to make the motor shaft turn. Currently, the classification of the DC motor can be done based on the winding connections, which means how the two coils in the motor are connected with each other.
Different Types of Electric Motors
AC motors are highly flexible in many features including speed control VSD - Variable Speed Drives and have a much larger installed base compared to DC motors, some of the key advantages are:. The current trend for VSD is to add more features and programmable logic control PLC functionality, which add advantages but require greater technical expertise during maintenance. In this type of motor, the rotation of the rotor is synchronized with the frequency of the supply current and the speed remains constant under varying loads, so is ideal for driving equipment at a constant speed and are used in high precision positioning devices like robots, instrumentation, machines and process control. Click here for an example Synchronous Motor from RS. This type of motor uses electromagnetic induction from the magnetic field of the stator winding to produce an electric current in the rotor and hence Torque.
Electric motors are now more diverse and adaptable than ever before. When planning a motion control system, the choice of motor is extremely important. The motor must align with the purpose and overall performance goals of the system. Luckily, there is a motor design suitable for any imaginable purpose. AC brushless motors are some of the most popular in motion control. They use induction of a rotating magnetic field, generated in the stator, to turn both the stator and rotor at a synchronous rate. They rely on permanent electromagnets to operate.
Electric motors play a vital role in industry, businesses, and homes in the 21 st Century. Increasingly, a push for more green sustainable technology has brought innovation and change to the simple electric motor. Each motor has a specific application. Basic motors have been classified into three distinct types: AC motor, DC motor, and specialized motors. AC motors include both the synchronous motor and the induction motor. The simple electric motor function remains similar. Synchronous motors have been used for both robots and automation.
Permanent Magnet (PMDC) motors: The stator is a permanent magnet, so the motor is smaller in size. Disadv: only used for low torque applications http://en.
What are the Different types of electric motor?
Premium Membership. Learn from experienced power engineers. Almost all modern industrial and commercial undertakings employ electric drive in preference to mechanical drive because it possesses the following advantages :. However, the above two disadvantages can be overcome by installing diesel-driven DC generators and turbine-driven 3-phase alternators which can be used either in the absence of or on the failure of normal electric supply. Since it has high starting torque and variable speed , it is used for heavy duty applications such as electric locomotives, steel rolling mills, hoists, lifts and cranes.
Motors are mechanical or electro-mechanical devices that convert energy into motion. Energy, in the form of electrical, hydraulic, or pneumatic, is converted to rotational or linear motion and then output to a shaft or other power transmission component where it provides useful work.
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