Resumo:
This work aims to present new contributions for electrical machines application studies,
mainly about analysis of induction and synchronous generators in parallel operation mode,
including studies of generation and load transients and contingencies against undesirable
effects of frequency increasing. Then, in summary, the main topics presented in this work
are: an analysis of induction and synchronous generators in parallel operation mode,
studies of load and generation transients and, finally, studies of increasing frequency for
this cited generator topology, the causes of increasing frequency and alternatives to control these effects. All of this main subject are supported by appendixes that contributes with practical and original studies related to each subsystem that is part of main experiments such as: (i) voltage and current regulators for DC machines, (ii) firing circuit, (iii) voltage regulators to synchronous generators, (iv) four-quadrant Driven System for DC Machine and (v) analogical and digital control boards.
