What is an axial flux electric motor?
What is an axial flux electric motor?
An axial flux motor (also known as an axial gap motor, or pancake motor) is a geometry of electric motor construction where the gap between the rotor and stator, and therefore the direction of magnetic flux between the two, is aligned parallel with the axis of rotation, rather than radially as with the concentric …
Why are axial flux motors better?
An axial flux motor also has a higher power density, developing 30-40% more torque than a similar-sized radial motor, and has better cooling.
How does Yasa engine work?
YASA motors have been developed specifically for the vehicle. The stator segments have been made using powdered iron material which enables the machine to be run up to an electrical frequency of 300Hz. Two different SMC materials are considered for the stator iron: Somaloy 3P and Somaloy 3P HR.
What is radial flux motor?
When the flux is imposed in the radial direction the motor is called a radial flux motor. When the flux is imposed in the axial direction, it is called an axial flux motor. A critical difference between the radial and axial flux motor, is the amount of permanent magnet material that is used for a given performance.
How does an axial flux generator work?
In an axial flux generator, also known as a pancake generator, the rotor is a flat disk of magnets which rotates on a shaft above a flat ring of stator coils. Bottom Plate Page 6 3 rotor. The alternating magnetic field from the rotor induces a voltage in the coils of the stator.
What is an flux?
1a : a flowing or discharge of fluid from the body especially when excessive or abnormal: as. (1) : diarrhea. (2) : dysentery. b : the matter discharged in a flux. 2 : the rate of transfer of fluid, particles, or energy across a given surface.
How does axial flux generator work?
What does Yasa mean?
YASA
| Acronym | Definition |
|---|---|
| YASA | You Are Simply Amazing |
| YASA | Yale African Students Association |
| YASA | Yet Another Stupid Acronym |
| YASA | Youth Action for Social Advancement (Bangladesh) |
What do Yasa do?
YASA is a British manufacturer of electric motors and motor controllers for use in automotive and industrial applications. The company was founded in 2009 by the CTO Dr Tim Woolmer who is also the holder of a number of related motor technology patents.
Why are radial magnets used in motors?
Many radial flux motors use a hybrid approach with a permanent magnet and using the design of the rotor and stator to increase the reluctance within the motor. The reluctance torque is generated by current running through other parts of the stator (firing currents into coils at the stator tooth to generate the field).
What is axial flux permanent magnet generator?
The yokeless, permanent-magnet topology offers greater efficiency around the motor’s central axis, and wastes very little copper on windings because the motors have zero overhang. Magnax offers a new concept, though—a machine that operates with axial flux (AF). …
Where does the flux go in an axial flux motor?
The magnetic flux from the magnets interacts with the windings of the stator. The flux loop starts at the first permanent magnet on the rotor, crossing the air gap between the rotor and stator. It then passes through the first metal tooth on the stator.
Which is the most efficient axial flux generator?
Plus, according to the company, AFPM machines can provide the highest energy efficiency of all electrical machines, mainly because there’s no yoke and the flux paths (through the grain-oriented electrical steel cores) are very short. Figure 3 shows a Magnax 275-mm AFPM motor.
Why are axial flux motors called Pancake motors?
The larger the diameter of the rotor, the greater the torque produced. Axial flux motors are sometimes called “pancake” motors because of their large diameter and short length. They can be stacked together on a common shaft to produce greater power outputs. Lightweight, compact and powerful motors are also an advantage in aviation.
Which is better axial flux or permanent magnets?
The yokeless AF motors have a shorter flux path, and permanent magnets are farther away from the axis, resulting in greater efficiency and leverage around the central axis. Furthermore, thanks to the axial flux design, very little copper is wasted on overhanging loops on the windings.