Controller Design, Analysis, and Prototype for Ship Service Converter Module

摘要

The Navy has invested in an effort to update the ship electrical distributionsystem for new vessels. The new architecture divides the ship into specific zones containing common energy conversion devices. Rather than the traditional AC distribution, DC will be produced at the source (a multiphase alternator connected to a controlled rectifier). An integral part of the proposed DC distribution system is the Ship Service Converter Module (S SCM) which acts as a buffer between a main DC bus and a specific zone in the ship. Currently a research effort is underway to make available two Reduced Scale Advanced Development (RSAD) 100kW SSCMs for testing at the Naval Surface Warfare Center, Annapolis. The Power Laboratory at the Naval Postgraduate School is responsible for delivering two identical prototype controllers based on digital signal processing for the RSAD SSCMs. The focus of this thesis is the design, construction and testing of the prototype controllers. This engineering effort includes the following: the analysis of the performance of various control algorithms through simulation; the refinement of the selected algorithm; the design, assembly, and testing of the controller and its supporting hardware; the development and testing of the software; and the integration and testing of the complete system.