LCC theory-based method of comprehensive evaluation of transmission network planning scheme

Abstract

The invention relates to an LCC theory-based method of comprehensive evaluation of a transmission network planning scheme. The method is characterized in that the method comprises the following steps that: step 1.1, according to power grid data published by an electric power company, calculation is respectively carried out on risk indexes Rs, efficiency indexes Es and LCC indexes Cs of N transmission network planning schemes by employing different computing methods; step 1.2, the risk indexes Rs, the efficiency indexes Es and the LCC indexes Cs of the N transmission network planning schemes are respectively substituted into a formula (1) to obtain N composite indicators RECs, wherein the formula is: REC= R + E + C (1) and the risk indexes Rs, the efficiency indexes Es and the LCC indexes Cs are obtained by the step 1.2; and step 1.3, comparison is carried out on the N composite indicators RECs that are obtained by the step 1.2; and a scheme that is corresponded to a composite indicator REC with a minimum numerical value is an optimum scheme and a scheme that is corresponded to a composite indicator REC with an infinite numerical value is an ineffective scheme. According to the invention, economy and technique rationality of a transmission network planning scheme as well as an influence on the environment can be evaluated comprehensively; and coordination optimization of the transmission network planning in the aspects of economy, technology and environmental protection can be realized.

Description

technical field [0001] The invention relates to a method for comprehensive evaluation of transmission network planning schemes based on LCC theory, and belongs to the technical field of power system planning. Background technique [0002] Transmission network planning is an important part of power system planning and the basis for transmission network construction and development. It has a long-term impact on power grid development, economic growth and the surrounding environment. Therefore, it is necessary to comprehensively evaluate the performance of the transmission network planning scheme and make a Correct development decision-making has become an important issue to be solved in practice. [0003] The comprehensive evaluation of the transmission network planning scheme involves many fields such as technology, economy, environment, etc., and includes various uncertain factors in the future for a long time. The complexity and difficulty of comprehensive evaluation and op...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the one-sidedness of the traditional transmission network planning evaluation scheme, solve the problem that it cannot comprehensively reflect the characteristics of various attributes of the power g...

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