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):

Report Date:

2017-09-01

Pagination or Media Count:

145.0

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.

Subject Categories:

  • Electric Power Production and Distribution

Distribution Statement:

APPROVED FOR PUBLIC RELEASE