Abstract
| The objectives followed in the frame of this paper are to approach comparatively the two types of motors, from the view point of operation performances and of exploitation expenses obtained with them (asynchronous motor and permanent magnet synchronous motor), with the help of some specialized computation softwares. That is why the two motors are built in identical conditions, in order to analyze by comparison the load operation characteristics, the active and reactive electrical energy consumption. The study lately developed regarding the optimization of alternating current electrical machine include especially the problem of efficiency and power factor increase. The utilization of permanent magnets having high specific energies for building low power synchronous motors influenced the machine performances, the machine cost and the exploitation cost. In case of drives using alternating current motors the exploitation costs can be reduced by choosing correctly the driving motor. In order to enlarge the sale market of the energetically efficient motors, the producers have aimed at proving that the motors having high efficiency might be an attractive alternative for customers. In the frame of the aided conception, the computer becomes a numerical laboratory for the prototypes construction, without costs and deadlines, specific to a real execution. The utilization of permanent magnet synchronous motor reduces the consumption of active electrical energy with 7.9%, reduces the consumption of reactive electrical power very much, resulting a total cost which is lower with 23.9%. |
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