Abstract
The block diagram of experimental ac-dc electric propulsion system is obtained containing detailed chopper switching phenomena on the chopper controlled motor which drives the alternator. Dynamic performance of experimental system on crash astern, assuming that ship speed is constant, is estimated by the MISS simulator managed on the multi-microprocessor system. The computed results using observed constants match those obtained from the tests. It is discussed on the analytical response of velocity and shaft torque of the propeller affected by the values of current limit of the propulsion motor, field time constant of the generator and integral gain of the automatic voltage regulator.
