Resumo:
This dissertation presents a comparative analysis between the two main methodologies
used to carry out the studies of motor starting, the Ąrst called the static method (snap shot), in the frequency domain, and the second, called the dynamic method (The Speed Torque and acceleration-Time), in the time domain, using as a case study a typical offshore
platform composed of generators and large induction motors. For this, the software Power
Tools for Windows (PTW) and the real-time digital simulator (RTDS) were used to per form the analysis of the two methodologies. From the results of the case study, the main
advantages and disadvantages of each one are pointed out, as well as the differences in
the requirements associated with the parameters of the electrical system equipment nec essary to apply each methodology. The simulation results showed that the study of motor
starting in the time domain provides more complete information than the static one, even
more for this type of system in particular. This work reveals the need for the selection
criteria between the two methodologies to be deĄned in the IEEE 3002.7-2018 standard
and for isolated systems it is highly recommended to perform a time domain analysis.
