Open AccessSimulation Model and State Analysis of Ship Transmission Line
Author(s) -
Yanzhe Hu,
Mengjie Xu,
Yang Li
Publication year - 2018
Publication title -
polish maritime research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.374
H-Index - 21
eISSN - 2083-7429
pISSN - 1233-2585
DOI - 10.2478/pomr-2018-0110
Subject(s) - fault (geology) , transmission line , signal (programming language) , fault model , voltage , electric power transmission , state (computer science) , matlab , line (geometry) , stuck at fault , control theory (sociology) , engineering , computer science , fault detection and isolation , electrical engineering , electronic circuit , mathematics , algorithm , geology , seismology , geometry , control (management) , artificial intelligence , actuator , programming language , operating system
In order to discuss the simulation model of the ship transmission line and the state of the transmission line, an early fault model is built according to the evolution principle of the short circuit fault of the transmission line and combining with the fault characteristics of the early fault. A small distributed ship transmission line system is built in MATLAB/ Simulink. Then, combined with the constructed fault module, the original short circuit module, and the load module, the various states (normal state, early fault state, severe early fault state, short circuit state) of the ship transmission line are stimulated, and the features of voltage signal in each state is analysed. It is concluded that, due to the normal operation of the ship transmission line system, the variation characteristics of the flow signal and voltage signal caused by the sudden load mutation, that is, the sudden load and the sudden increase load, are very similar to the changes caused by the early fault. Therefore, in order to find a more accurate early fault detection method, the state is divided into normal state, sudden load state, sudden increase and sudden decrease load state.