Synchronous reluctance motors - efficient drive solutions without rare earths
With our drive controls, you get the most out of this sustainable technology - independently, efficiently and future-proof.
CUSTOMISED SOLUTIONS
Rare earths, supply bottlenecks, rising costs
- Time for alternatives
The dependence on rare earths makes many companies in the mechanical and vehicle engineering sector vulnerable. Rising prices, geopolitical tensions and sustainability goals call for new solutions in the drive sector.
The synchronous reluctance motor (SynRM or SRM) offers an efficient, resource-saving and economically attractive alternative - without any rare earths.
About the synchronous reluctance motor (SynRM)
so efficient and sustainable
Full independence
as no use of critical rare earths is necessary.
High energy efficiency
due to lower losses and precise control.
Robust design
fewer temperature problems, long service life, easy maintenance.
Our drive controls
make the difference
As a specialist in motion control and power electronics, we develop control systems that are perfectly matched to synchronous reluctance motors (SynRM or SRM ) are harmonised. This allows you to fully utilise the advantages of the technology - from precise torque control to energy-efficient power adjustment. Let's talk about your drive solution!
Technical advantages at a glance
Feature
Synchronous reluctance motor
Standard permanent magnet motor
Synchronous reluctance motor
- No use of rare earths
- Very stable temperature behaviour
- Stable and favourable cost development
- Very sustainable
Standard permanent magnet motor
- Use of rare earths
- Sensitive temperature behaviour
- Fluctuating and expensive cost trends
- Hardly sustainable
Practical example:
Single motion controller
The SMC drive controller is a 1-axis controller. It offers a variety of I/Os for reading in sensors and setpoint transmitters as well as for setting outputs and switching loads. This enables you to operate all types of machines with a drive, such as travelling or pump drives, efficiently, reliably and safely.
- Control of a wide variety of motor types, such as synchronous reluctance motors (SynRM / SRM)
- Conformity to CE, cULus, RoHS, REACH, EMC
- Long service life with 50,000 h
- Weight 560 g
FAQ
A synchronous reluctance motor is an electric motor in which the torque in the rotor is generated exclusively by the reluctance force. The rotor rotates synchronously with the rotating field of the pointing voltage network.
Synchronous reluctance motors are used, for example, in industrial drives such as pumps or fans.
You can find more information here.
Synchronous reluctance motors (SynRM) are characterised by their high energy efficiency, as they are operated without permanent magnets and therefore have no electrical losses in the rotor. They are cheaper to manufacture and are considered more environmentally friendly as they do not require rare earths. They also require less maintenance, work at lower operating temperatures and enable precise speed control.
The main difference between a synchronous reluctance motor (SynRM) and an asynchronous motor lies in the way the rotor works: In an asynchronous motor, the rotary motion is generated by an induced magnetic field, which means that the rotor always runs asynchronously and has a slip, i.e. rotates slightly slower than the magnetic field of the stator. In contrast, the rotor of a SynRM rotates synchronously with the stator field, as it utilises the magnetic reluctance to move at the same speed as the rotating magnetic field and therefore has no slip.
Rare earths are a group of 17 chemical elements, including the 15 lanthanides as well as scandium and yttrium. Despite their name, they occur relatively frequently in the earth's crust, but mostly in low concentrations and are difficult to separate from one another. They are crucial for modern technologies, for example in smartphones, wind turbines, electric motors and LEDs. Mining and processing are complex and often harmful to the environment.
