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Construction and Comparision of Low Speed Axial Flux Permanent Magnet Alternator...

Low speed Axial Flux Permanent Magnet Alternator (LSAFPMA) is widely used in rural areas for electrification. Two types of LSAFPMA are used: with core and without core. However, alternator with core is widely preferred to that of coreless. This type of alternator is widely used in rural areas and is also known as sudhariako ghattas.

With the use of core in the alternator the voltage obtained from the same alternator is found to be higher and the increase depends upon the core used. The 3 cm core has been placed in the slot of the coil. The addition of the core in the stator of the alternator reduces the air gap and hence the reluctance is reduced. This helps in the production of voltage in higher value as the interaction between the magnet and coils is higher with less reluctance.

The addition of core also increases the efficiency of the alternator. The core added itself acts as the magnet and hence the magnetic flux linkage is higher which helps in the increasing of the voltage. Overall the addition of the core increases the voltage and the efficiency of the alternator with a negligible spending.


  •     Ujwol Phaiju
  •     Sumit Shrestha
 

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