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Study on the Grid Asset Management Based on the Life Cycle Cost Theory

Author: ZuoXiuLian
Tutor: QiuQiRong
School: North China Electric Power University (Beijing)
Course: Applied Mathematics
Keywords: Life Cycle Cost Reliability Asset Management
CLC: F406.7;F426.61
Type: Master's thesis
Year: 2011
Downloads: 235
Quote: 3
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Abstract


Electricity is a strategic energy related to the lifeline of the national economic and social development . In recent years, the state has continued to increase investment in the grid , power grid construction stage of rapid development . Huge investment in power projects in the power equipment assets accounted for a large proportion of the net a lot of power transmission equipment put into operation early aging , reliability decreasing year by year , frequent maintenance to maintain the increased costs , extensive technological innovation . In the asset management process , how to proceed from the overall objective of the system , and consider the planning and design of power grid construction , procurement construction , operation and maintenance , technical innovation scrapped the whole process , the pursuit of the lowest cost of the equipment life cycle to meet the safety, efficacy premise achieve system optimization is a topic worthy of further study , is bound to have a profound impact on increasing the value of state-owned assets . In this paper, the traditional power grid asset management to focus only on a one - time investment expenditures on future maintenance and end-of-life cost considerations shortcoming on the theoretical basis of the total life cycle cost management , combined with the characteristics of the grid asset management , put forward a theory based on life cycle cost 's grid assets management . Divided into the full life cycle cost of the power grid assets investment costs , operating costs, maintenance costs , the cost of failure is retired disposal costs five parts . Each model to quantify the cost of the five parts . Bring greater financial pressure , due to the rapid growth of land prices in the cost of the investment model , to the construction of power grids in land costs include not only the the disposable land acquisition costs , including the land value - added costs . Maintenance cost model , taking into account the uncertainty of the failure , the use of the reliability of knowledge and knowledge of probability and statistics , and the use of life distribution weibull distribution of analog equipment , and the method of least squares and maximum likelihood method has the advantage MaximumLikelihood natural law model parameter estimation iterative algorithm . The GDP estimate fault cost model will be improved , increasing the weight coefficients that reflect the different functional areas ( DSM ) , to overcome the original method can not distinguish the different electricity Ribbon disadvantage . Finally, the application example .

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