Learn more about different types of electric motors

Surely you have heard the name of electric motors many times and you have information about it. In this article, we intend to define and study electric motors in more detail. We will also introduce the different types of electric motors and explain each one separately. Stay with us.

An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft. Electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as a power grid, inverters or electrical generators. An electric generator is mechanically identical to an electric motor, but operates with a reversed flow of power, converting mechanical energy into electrical energy.

Using frequency converters means that the pumps can operate at optimum performance during any unloading conditions, resulting in higher total system efficiency and lower power consumption. When used as a direct drive force, electric motors also increase system efficiency compared with alternative systems.



Dramatic energy and cost savings can be achieved in motor systems by applying the best energy management practices and purchasing energy-efficiency equipment. 

Types of Electric Motors

Electric motors are generally divided into two categories, AC and DC, and each of the thin categories includes other items.



  • AC Motors
The AC motor is one of the types of electric motors that uses current with an alternating direction. These motors are not as easily speed-controlled as DC ones; however, with a bit of power penalty, one can use AC motors with variable frequency drives to have better speed control.

  • DC Motors
In DC types of electric motors, DC electrical energy is turned into mechanical energy. DC motors can be whether self-excited or separately excited. However, the self-excited DC motors are probably more interesting if you can use them for your application. Read More Here

DC motors can also be classified based on whether they have brushed DC (BDC) or brushless DC (BLDC). Brushed DC motors are cheap and simple to design and manufacture; however, BLDC motors are complex and pricy. In general, small and insensitive applications such as appliances and car power windows and seats could use BDC motors, whereas applications such as HVAC and refrigeration, car electric motors, and other similar industrial systems would work with BLDC.



You can refer to the following sources to read more about electric motors types.


References:

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