Accession Number : AD1046887


Title :   An Adaptive, Multi-Rate Linear Quadratic Regulator for a Shipboard MVDC Distribution System with Constant Power Loads


Descriptive Note : Technical Report


Corporate Author : Naval Postgraduate School Monterey United States


Personal Author(s) : Mills,Adam J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1046887.pdf


Report Date : 01 Sep 2017


Pagination or Media Count : 145


Abstract : Future U.S. Navy warships will have DC electrical distribution systems. These distribution system swill include multiple layers of electronic power converters. When coupled to high-bandwidth controllers, power converters behave as constant power loads to the distribution system. Constant power loads have a negative non-linear impedance characteristic that threatens system stability. Many different single-input control schemes have been applied to DC microgrids with constant power loads. In this work we propose a centralized select-matrix, multi-rate linear quadratic regulator (LQRSM)-based control scheme to provide a flexible and adaptable controller for high-order, multi-input, and multi-rate distribution systems.


Descriptors :   GENETIC ALGORITHMS , integrated systems , voltage , direct current , electrical loads , ELECTRIC POWER DISTRIBUTION , POWER CONVERTERS , NAVAL VESSELS , ELECTRICAL MICROGRIDS


Subject Categories : Electric Power Production and Distribution


Distribution Statement : APPROVED FOR PUBLIC RELEASE