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Game changer in drive technology
Scarcity of rare earths: Impact on drive technology
Rare earths like neodymium and dysprosium are important components in permanent magnet synchronous motors (PMSM). Due to China's announced export ban, production outages and rising costs threaten these areas of drives.
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A possible solution to this dilemma: switching to motors with synchronous reluctance technology. These can be operated completely without rare earths and are therefore not affected by an export stop from China. The reluctance technology, which has so far been more of a niche in drive technology, could prove to be a game changer in drive technology due to current developments in the world market. Only the control of reluctance motors has so far been considered relatively complex, so hardly any manufacturer offers corresponding control procedures.
Control reluctance motors efficiently
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KOSTAL has long included reluctance motors with its INVEOR frequency converters and has perfected the control of this technology. The Kostal control procedure is able to control such motors efficiently. The customer benefits
- from a full speed control range down to zero speed,
- high dynamics and power density.
- Positioning applications are thus possible with the reluctance motors, and all this, of course, without the use of a rotor position sensor.
Robust and scalable solution
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The result is a robust and scalable solution for industrial applications with excellent performance, even without permanent magnets, while being independent of rare earths and at lower costs. The future belongs to those who remain independent. KOSTAL provides the technology for this.
Source: Kostal