Six motor comparisons
In the process of contacting the motor, the feeling of memory loss is not always there. At that time, I clearly understood it, and I want to show it to others, but I don’t know where to start.
After a period of exploration, I found that using the table to compare the basic characteristics of different types of motors is easier to understand and remember.
Note: The relative position of the stator rotor also has the brushless DC of the outer rotor, such as ceiling fans, which will not be used on electric vehicles.
From the summary table, it is not difficult to find that the motor is really not complicated from the principle of rough.
The basic structure of the motor, the stator, the rotor;
Basic form of stator, coil winding, permanent magnet steel;
The basic form of the rotor, the coil winding, the permanent magnet magnet, and the special reluctance motor of the switched reluctance motor;
The principle of motor rotation, the rotor coil or the permanent magnet rotor of the direct current is subjected to a force in a changing magnetic field, so that rotation occurs. More special is the switched reluctance motor, which is powered by minimizing magnetoresistance.
In principle, the basic structural form of the motor is these. However, in each of the different application scenarios, the motor will be refined to accommodate the local functional details at the time, as well as the corresponding control system. Starting from the needs of the control system, the motor entity design is reversed. This gradually led to the emergence of a wide variety of motor varieties.
Taking the basic structure and function as a framework, gradually add knowledge about the applicable environment, product cost, speed control method, controller characteristics, etc., to form your own motor knowledge base.
