Abstract
Research of electric propulsion system have been conducted to minimize the occurrence of marine environmental pollution and maintenance costs in small ships such as coastal passenger ships, cruise ships and fishing boats. Speed control methods induction motor that are widely used in large electric propulsion ships has low control characteristics in the low speed range, and therefore, the performance of the steering is very deteriorated in ships with a large number of the entry and departure of port. Therefore, in this paper, the vector control algorithm with the AFE rectifier is applied to induction motor and speed control performance at low speed range has been improved. and it was verified through computer simulation using PISM program.
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