Permanent magnets synchronous machine with rotor poles supported by magnets

A rotor of a buried permanent magnet machine can be constructed reliably by using magnets to support the rotor structure against centrifugal forces. In this work, a rotor solution with V- shape magnets in every pole are replaced with a rotor solution where every second pole are geometrically supported by the rest of the poles with the magnets. Effect of the replacement of the rotor is compared by simulating and by testing manufactured prototypes. Simulations are performed with electromagnetic and mechanical finite element methods. Obtained results show superiority of geometrically supported solution.