Computer Simulation of Shipboard Electrical Distribution Systems
Abstract
Shipboard electrical distribution systems are changing significantly with the introduction of solid state frequency converters, introduction of electric propulsion and integrated electric drive, and the possibility in the future of large combat systems pulsed loads. Existing computer tools for analyzing power systems have difficulty simulating these changing conditions. To assist in the evaluation and analysis of future shipboard electrical distribution systems, the Shipboard Electrical Plant Simulation Program (SEPSIP) was developed. The key feature of SEPSIP is its use of implicitly defined input variables and implicit variables which allow for every element of the simulation to be mathematically isolated from every other element. When the constitutive laws of an element are satisfied an appropriate set of input variables, all of the implicit variables have zero value. The network description generates the input variables based on the network topology and the results of a Newton Raphson iterative scheme. The key advantage to this method is that the network description of a node closely models an actual electrical node. To demonstrate the abilities of SEPSIP, several simulations involving synchronous generators, induction motors, and voltage regulator dynamics were conducted. In all simulations, SEPSIP provided results that matched data generated by other simulation methods.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1989
- Accession Number
- ADA213525
Entities
People
- Norbert H. Doerry
Organizations
- Massachusetts Institute of Technology