Operation of synchronous and asynchronous electric motors used in electric vehicles
The trend and application of electric motors in electric vehicles have emerged relatively recently in automotive technology. Despite the fact that there have been many examples of the use of various electronic components in a car for many decades, the complete electrical operation of a car without a traditional internal combustion engine is completely modern and future-oriented.
As is clear from the description of the electric vehicle, it used electrical energy to create torque and power output to propel the vehicle. Traditionally, this was carried out by an internal combustion engine, which needed fuel to have enough energy to rotate the wheels of the car and overcome the forces of resistance to movement. So, the function of an electric motor is similar, but the application is completely different. This includes the various components of the electric motor, the weight of the entire installation, the location of the engine in the vehicle, the dynamics of movement, power and torque, vibration, sharpness, and charging of the car.
Pros and cons of electric
vehicles Expanding on the above-mentioned characteristics of an electric vehicle, we can see that an electric motor weighs much less than a traditional internal combustion engine. For example, a conventional motor can weigh about 180 kg compared to a conventional induction electric motor, which can weigh about 35 kg. In addition, a lighter electric motor is likely to produce twice as much power as a conventional motor. Therefore, the difference in power-to-weight ratio between the two power supplies is quite significant.
Secondly, the electric motor requires a large battery pack, which is installed at the bottom of the car. This means that the significant weight of the car is well distributed along the bottom, which reduces the center of gravity of the electric vehicle. This significantly increases the stability of the car and, in turn, significantly improves handling.
Third, power and torque are available instantly because everything depends on electrical impulses. It does not take time to change and control the electrical power consumed, and the reaction will be immediate. There are no delays, so electric vehicles can show impressive time points from 0 to 100 km/ h. Passengers also do not have to deal with the roar and rumble of the engine, since electric vehicles operate silently, since there are literally no moving parts in them. However, the big disadvantages of electric vehicles should be the long charging time and high cost. There are always concerns about the distance of the trip if the car runs out of battery on the way.
The two most well-known types of electric motors used in electric vehicles today.
Asynchronous motor
An asynchronous motor is a very powerful and complex energy source used in electric vehicles. The asynchronous motor was developed almost a century ago and has been used in various fields. In fact, it consists of a rotor and a stator. An electric current is applied to the stator from the battery, and a rotating magnetic field is created around the stator. This also induces a current in the rotor, which causes it to rotate. The rotor is directly connected to the transmission, which is usually a single-stage transmission. This directly causes the wheels to move. Another important component of this installation is the inverter. Direct current from the battery must be converted to alternating current at the input to the motor. In addition, an inverter is a component that changes the frequency of the alternating current to ensure that the speed of the wheels changes. This is what helps make an electric car all-wheel drive.
Permanent synchronous magnet motors
In these types of motors, the magnet is either embedded in the rotor or placed on the surface of the rotor. A magnetic field is created, and rotation causes the car to move. However, in this case, the speed of the rotating magnetic field is similar to that of the rotor, which is why it is known as a synchronous motor. Depending on the location of the magnets, they are divided into internal permanent magnet motors and surface permanent magnet motors. These are the two most commonly used electric motors in automobiles due to their durability, high efficiency, power, and relatively simple technology. There are other engines such as Reluctance Motors that are used in electric vehicles around the world. Huge Partners affiliate program
As is clear from the description of the electric vehicle, it used electrical energy to create torque and power output to propel the vehicle. Traditionally, this was carried out by an internal combustion engine, which needed fuel to have enough energy to rotate the wheels of the car and overcome the forces of resistance to movement. So, the function of an electric motor is similar, but the application is completely different. This includes the various components of the electric motor, the weight of the entire installation, the location of the engine in the vehicle, the dynamics of movement, power and torque, vibration, sharpness, and charging of the car.
Pros and cons of electric
vehicles Expanding on the above-mentioned characteristics of an electric vehicle, we can see that an electric motor weighs much less than a traditional internal combustion engine. For example, a conventional motor can weigh about 180 kg compared to a conventional induction electric motor, which can weigh about 35 kg. In addition, a lighter electric motor is likely to produce twice as much power as a conventional motor. Therefore, the difference in power-to-weight ratio between the two power supplies is quite significant.
Secondly, the electric motor requires a large battery pack, which is installed at the bottom of the car. This means that the significant weight of the car is well distributed along the bottom, which reduces the center of gravity of the electric vehicle. This significantly increases the stability of the car and, in turn, significantly improves handling.
Third, power and torque are available instantly because everything depends on electrical impulses. It does not take time to change and control the electrical power consumed, and the reaction will be immediate. There are no delays, so electric vehicles can show impressive time points from 0 to 100 km/ h. Passengers also do not have to deal with the roar and rumble of the engine, since electric vehicles operate silently, since there are literally no moving parts in them. However, the big disadvantages of electric vehicles should be the long charging time and high cost. There are always concerns about the distance of the trip if the car runs out of battery on the way.
The two most well-known types of electric motors used in electric vehicles today.
Asynchronous motor
An asynchronous motor is a very powerful and complex energy source used in electric vehicles. The asynchronous motor was developed almost a century ago and has been used in various fields. In fact, it consists of a rotor and a stator. An electric current is applied to the stator from the battery, and a rotating magnetic field is created around the stator. This also induces a current in the rotor, which causes it to rotate. The rotor is directly connected to the transmission, which is usually a single-stage transmission. This directly causes the wheels to move. Another important component of this installation is the inverter. Direct current from the battery must be converted to alternating current at the input to the motor. In addition, an inverter is a component that changes the frequency of the alternating current to ensure that the speed of the wheels changes. This is what helps make an electric car all-wheel drive.
Permanent synchronous magnet motors
In these types of motors, the magnet is either embedded in the rotor or placed on the surface of the rotor. A magnetic field is created, and rotation causes the car to move. However, in this case, the speed of the rotating magnetic field is similar to that of the rotor, which is why it is known as a synchronous motor. Depending on the location of the magnets, they are divided into internal permanent magnet motors and surface permanent magnet motors. These are the two most commonly used electric motors in automobiles due to their durability, high efficiency, power, and relatively simple technology. There are other engines such as Reluctance Motors that are used in electric vehicles around the world. Huge Partners affiliate program
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