AXIAL FLUX MACHINES /
AXIAL FLUX ELECTRICAL MACHINES
Axial flux electrical machines are considered by many the next step in electric propulsion solutions. We support by developing and simulating different topologies and evaluate the respective advantages and disadvantages based on the requirements.
With deep understanding of the connection between material properties and electric machine performance, coupled with a simulation driven design approach we have vast experience in concept design studies for machines both for traction and auxiliary applications.
STRATEGY
AXIAL FLUX DEVELOPMENT
- Concept: Starting from your application needs or concept idea, we develop one or multiple electrical machine concepts. Using electromagnetic design tools such as JMAG we first perform quick screenings to find the best machine candidates.
- Design and Optimization: Once the best machine candidates have been defined, we proceed with more detailed thermal and mechanical analysis. In parallel, the machines are designed and modelled in CAD, typically using Creo or Solid Works.
On the electromagnetic side the detailed analysis can include demagnetization analysis, skin losses and proximity loss analysis and we provide optimization for efficiency and performance.
- Prototyping: After the detailed design is frozen, we procure the components and build the electrical machines.
- Validation and Testing: We take the assembled prototypes and proceed with the testing and validation. Starting with basic observations like geometrical dimensions, phase resistance, phase inductance and insulation testing and moving onto to characterize the machine with BEMF and static torque tests. Finally, the machine is subjected to full testing to validate peak and continuous performance as well as efficiency.
USE CASE
OD 100 e-MACHINE
An example of an axial flux design developed from concept up to validated prototype, is the OD 100 e-machine, mainly intended for auxiliary application. With the key design features listed below, the machine was modelled and simulated using JMAG. All operating points are achieved within the specification and state of the art efficiencies for an auxiliary drive machine.
- Motor: open-slot, double-sided axial flux machine (DSAFM)
- 12 slots and 10 poles
- Concept: modelled and simulated using JMAG
- Applying materials manufactured by Höganäs AB
- Material: available in the JMAG material database
- High strength NdFeB magnets to achieve an overload power of 7.7 kW
- Outer diameter 109.7 mm, axial length 66.2 mm
All operating points are achieved within the specification and state of the art efficiencies for an auxiliary drive machine.
WHY AXIAL FLUX MACHINES? /
COST EFFICIENCY
AXIAL FLUX MACHINES
- Pre-wound slide-on and tightly wound coils
- Simple, automated assembly with lower investments
- Easier recycling of components
PUT POWER INTO PRACTICE!
We support by developing and simulating different topologies and evaluate the respective advantages and disadvantages based on the requirements. Our basis: Profund experience in electromagnetic studies for motors (traction & auxiliary) for many OEMs and Tier 1.