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بناء انموذج محاكاة لايجاد معولية منظومة قدرة كهربائية == Building A Simulation Model To Find The Reliability of Electrical Power System
Author name:
بروين ايشا كيوركيس
Supervisor name:
خالد ضاري عباس الطائي
General topic:
Administration and Economics
Specific topic:
Operations Research
Degree:
Master
University:
University of Baghdad - Faculty Of Administration And Economics - Department Of Statistics
Language:
Arabic
University location:
Baghdad
First pages:
07T3488 - p.pdf
Abstract:
بعد التطور الكبير الذي حصل في مجال الحاسبات والاهتمام المتزايد باسلوب المحاكاة ومن خلال دراستنا وبحثنا في اساليب وطرائق بحوث العمليات كان الزاما علينا دراسة وتطبيق احدا اساليب بحوث العمليات المعروفة والتي نشعر بان لها فائدة عظيمة في خدمة قطاعات واسعة في ا | After the great development happened in computers field, the increasing interest in the simulation method, and through our study and research in methods and techniques of operations researches, it was necessary to study and apply one of the known operations researches methods, which we feel that it has a great benefit in serving many sectors in the society, and that is the simulation method.So we decided to merge between simulation and an other method which is not less important than it, which is Reliability.In the last years, the great and increasing interest in studying reliability method was due to the rapid technical development and using complex electronic systems, and relating between it and simulation method is an important thing, so we tried in this research to build a simulation model suitable for the system to measure its reliability and for two different study cases.The fist case is when it is possible to build a mathematical model (primary) for the system. Before starting with forming of reliability system, we must first specify the type of the system that we are going to work on. We chose surplus system to be our study system, because of its capability to provide many choices, in addition to that it permits increasing the reliability spite of external environmental pressures. Because of our many objectives that we wish to achieve in this stage of increasing the reliability, reducing the total cost and total weight of the designed system, we used multi - objective models. And for achieving desired objectives, we formed the model as a case of programming of nonlinear mixed integer numbers. After we had built the mathematical model for the system, we have now a model with three objective functions (reliability - cost - weight) and one condition of size. But when these objectives became unclear in their objective nature, it is possible to reform the case within the fuzzy theory, so we have in this case a reliability system with fuzzy objectives. To solve models like this, it had been made a computer program with Q - Basic language to find the results using FAGP and FNLP methods with the assistance of Monte - Carlo simulation method to find the perfect reliability for the surplus system.As for the second case when it is impossible to build a pre - model for the system, and this is what happens when we have a complex systems and nets, in which the normal methods becomes useless for the total reliability of the system, so we use the simulation method (flow method) and in a direct way to find the reliability.The flow method is applied to Al - Quds electric power distribution station, in which it had been made a computer program with Q - Basic language to find the total reliability for the station and lost power in the year, in addition to determine the number of breakdowns in the specified period, and we tried using simulation to improve the reliability of the station by adding a spare parts
