Sistema Integrado de potência em corrente contínua e média tensão com sistema de armazenamento de energia para mitigar efeito de cargas pulsadas em navios

Abstract

This dissertation presents an Integrated Power System applied to a warship, adopting a direct current (DC) medium voltage microgrid. In this microgrid, the control of load sharing between two generators, which occur simultaneously, was verified in this stage the sharing of current, voltage and power, both in the outputs of the converters that are connected to the generators, and in the loads located on the DC link. In the work, another type of charge was used, the pulsed one, which is a representation of the high intensity laser used as a weapon of destruction of possible air, land and sea threats. The impacts of using these weapons are felt on the DC bus, generating a voltage dip, making it necessary to implement an energy storage system, in addition to the DC/DC converter to allow the flow and control of energy and power discharge to mitigate the effect. pulsed load, keeping the bus voltage constant. During the tests carried out, it was possible to verify the operation of the voltage control loop in cascade of the hybrid energy storage system, composed of battery and supercapacitor (SC), being this step the objective of this study. It should be noted that by implementing a cascade voltage control loop, the battery current control loop was developed, and its behavior in relation to pulsed charge was tested. Next, the SC current control was added, and the current loops were tested together, verifying their ability to deal with the pulse train caused by the use of the high-intensity laser weapon.