Power grid construction project increased power supply quantity benefit calculation method based on power supply safety standard

Abstract

The invention relates to a power grid construction project increased power supply quantity benefit calculation method based on a power supply safety standard. According to the method, the power supply capability satisfying the power supply safety standard requirement is calculated; the power supply capability is matched with the load development to obtain the safety increased power supply quantity; and the relationship between the power grid construction time sequence and the power supply safety requirement is coordinated and balanced. In an increased power supply quantity calculation method, the contribution degree of stock equipment and newly constructed equipment to the increased power supply quantity benefits is recognized; and a benefit sharing coefficient is calculated through the comparison relationship between the capacity margin of the stock equipment and the power supply capability improving degree of the newly constructed equipment. The method has the beneficial effects that the increased power supply quantity benefit is reasonably shared with newly constructed projects; the problem of increased power supply quantity gain sharing difficulty is solved; the power grid construction project increased power supply quantity benefit is accurately calculated; and further, the scientificalness and the reasonableness of the post project evaluation are improved.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a method for calculating the benefits of power grid construction project increase power based on power supply safety standards. Background technique [0002] In order to improve the investment decision-making level and investment efficiency of enterprises, in 2005, the State-owned Assets Supervision and Administration Commission required central enterprises to conduct objective analysis and evaluation of the purpose, implementation process, benefits, functions and impacts of investment projects after the completion of investment projects; the important role of post-evaluation lies in the approval of projects. Evaluate and summarize the successful experience and failure lessons of the project, and learn from the past to guide the construction of the grid and improve the scientific rationality of the grid investment decision-making. [0003] Increased power supply is an imp...

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Problems solved by technology

[0003] Increased power supply is an important indicator of project technical performance and economic performance in post-project evaluation. It is a powerful tool for coordinating power grid project construction and regional development. It can not only quantitatively analyze the contribution of the project to the new load of the power grid, but also test the project The actual economy and the scientific calculation of the benefits of increasing power supply are of great significance to the post-evaluation of power grid projects; while the existing calculation methods for increasing power supply usually use the difference between the power supply of the power grid in the two years before and after the project is put into operation or calculate according to the capacity load ratio method , the calculation method is relatively simple, which brings two major problems: First, in terms of matching the load development speed, the later the project is constructed, the better the power increase benefit will be, which inevitably leads to the directionality of post-evaluation The guidance is wrong, but in fact it should be to guide the project construction to be moderately ahead of the load development; second, the difference in the power supply capacity of the local power grid includes the joint effect of the power supply margin of the stock equipment and the new power supply capacity of the new equipment, which expands the The function and effect of new equipment cannot accurately reflect the power increase benefit of the construction project itself

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