The Research For Survivability Of Warship Power System

The degree of electrification and automation of modern warship is becoming more andmore high with the warship comprehensive electric propulsion technology and modern powerelectronic technology development, and warship power system becomes the primary powersystem from the auxiliary system, warship power system survivability that should beconsistent with warship resistance sinking becomes an important part of the warshipsurvivability. Wars and the development of science and technology promoting the rapiddevelopment of weapon equipment， which threatens to modern warship survivability.Improving the power system survivability is also improving the whole warship survivability，therefore the research work of warship power system survivability has important theoreticalvalue and military significance. At present，all countries in the world invested a lot ofmanpower and material resources for researching warship power system survivabilityassessment. This article is further research of warship power system survivability in thiscontext.Firstly, this article studies the composition of warship power system and its survivabilitycharacteristics，the damage mode of power system by typical attack weapon from the basics.The destruction criterion of electrical equipment under various damages way was establishedand the damage of impact was detailed studied，and computer simulation model is establishedand computer simulation is carried out.Secondly, the article proposes to use the method of combination weight calculatingpower load weight values which combining analytic hierarchy process and the entropy weightmethod. The rationality and the accuracy of the method of combination weight was provedthrough the analysis of the example，which provides a scientific method for calculating powerload weight in warship power system survivability fuzzy comprehensive assessment.Thirdly, the Monte Carlo method，damage tree method，fuzzy comprehensive evaluationmethod were applied in warship power system survivability assessment comprehensively. TheMonte Carlo method was used to calculating the probability of electrical equipment damage，the damage tree method was applied to calculated the power supply probability of the bottomof the electric power load，the secondary fuzzy comprehensive evaluation model wasestablished for the fuzzy comprehensive evaluation which was based on the basic theory offuzzy comprehensive evaluation. Through the case analysis，the conclusion which applied theseveral methods to warship power system survivability assessment was correctness and consistent with the reality, the method can also be applied to the other subsystems of thewarship survivability assessment.Lastly, warship power system survivability analysis software was designed in C#according to the conclusion and algorithm studied in the article and the software has practicalvalue by example test.