Design study of FSPM generator with novel outer rotor configuration for small wind turbine application

Optimal design of permanent magnet flux switching generator for wind applications via artificial neural network and multi-objective particle swarm optimization hybrid approach

“…Therefore in the paper the selection of a number of the teeth N R equal to 19 is a compromise between the request of higher output power and torque density directly depending on rotor pole number, and an acceptable unbalanced magnetic force that will be present, in this case, in the final design. This choice has been already discussed by the same authors in another paper [20].…”

“…In our problem Y & R 4 and f is a vectorial multi-objective function having 4 components (the weight and the cost of the generator, the amplitude of the induced voltage and its THD). The set X # R 5 is the set of all feasible solutions fulfilling the constraints g and h of the relation (20), i.e. the requirements of Table 1 in terms of output power and rated line voltage and speed and the relations imposed for the design variables.…”

“…In this machine the PMs and the windings are located in the stator of the machine and rotor is a passive part containing only stainless steel structure [20]. This property provides possibility to easily utilize the permanent magnet flux switching machine (PMFSM) in many applications ranging from low to high speed rotation.…”

Flux switching alternators for small wind generation

“…In the field of small wind generation, a direct drive flux switching alternator with 120 stator slots/100 rotor poles, intended for low-wind velocity sites was developed [17]. Flux switching prototypes, with outer rotor with 6 stator slots /19 rotor poles, have also been built [18]. Finally it should be noted that, in [19], an axial field double salient structure with 12 stator slots /10 rotor poles have been presented.…”

A new outer-rotor flux switching permanent magnet generator for wind farm applications

“…FSPM demonstrates higher power and torque density, smaller volume and weight, higher reliability, rigid structure and fault tolerant capability in comparison with both PMSG and DFIG proving the feasibility of FSPM for direct drive wind turbine as the successor of PMSG . It is noteworthy that there are only few studies discussing on the performance analysis of the FSPM generator and its possibility to be employed in direct drive wind turbine conversion systems .…”