Stability Analysis of a Nonlinear System Stabilizing Controller for an Integrated Power System
Abstract
Future electric warships will contain one integrated electrical power infrastructure for propulsion, ship's service, and weapons systems. This integrated power system (IPS) must provide continuous power to mission and the critical systems, including during major combat battle damage disruptions. This research investigated a novel nonlinear systems stabilizing control strategy and associated stability assessment tools recently proposed by Sudhoff. Using a MATLAB-based DC stability toolbox, nonlinear stability augmentation of a prototype DC IPS was investigated with respect to changes in system parameters and system structure. Today's warships are constructed with segregated mechanical propulsion and electric power systems. In current ships, the power dedicated to ship propulsion is about 90% total ship power and power dedicated to electrical generation is about 10%. The existing ship service electrical system is not very robust: because the system is very tightly coupled, a single casualty can disrupt the entire system causing a total loss of electrical power. Even though the mechanical propulsion system may he in perfect working condition, it cannot provide any electrical power to the ship. An integrated power system will he deployed on future naval combatants to resolve this problem. The key advantage of an electronically controlled, integrated power system is the ability to actively control the flow of power throughout distribution systems.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2002
- Accession Number
- ADA404485
Entities
People
- Daniel F. Chiafair
Organizations
- United States Naval Academy