Method for evaluating electricity utilization energy efficiency of power consumer

Abstract

The present invention relates to a method for evaluating electricity utilization energy efficiency of a power consumer, which comprises: a step 1 of constructing a power consumer electricity utilization energy efficiency evaluation system, and setting a plurality of corresponding secondary indexes for each primary index; a step 2 of calculating weights of indexes on each grade; a step 3 of carrying out grading corresponding to the indexes on each grade according to a set threshold so as to establish an evaluation space, and constructing an unascertained measurement function of all the secondary indexes; a step 4 of calculating an unascertained measurement value of the secondary indexes a step 5 of calculating a measurement value of the primary indexes by combining the weights of the secondary indexes, and calculating a comprehensive measurement value of the integral system by further combining the weights of the primary indexes; and a step 6 of giving a value to each grade according to the established evaluation space so as to calculate a score of each primary index. The present invention provides one perfect evaluation method which can be used for carrying out evaluation on the indexes on each grade. Furthermore, implementation of energy-saving measures on the aspects of technologies, management and the like is comprehensively considered and subjective weights are amended hereby so as to enable evaluation to be more comprehensive and reasonable.

Description

technical field [0001] The invention relates to a method for evaluating energy efficiency of electric power users. Background technique [0002] With the improvement of my country's comprehensive national strength and the rapid development of the national economy, the demand for electricity consumption in all walks of life is increasing rapidly, resulting in a large disconnect between the supply and demand of electric energy. What is important is that compared with the international advanced level, my country's electric energy utilization efficiency is still relatively low, and the improvement of electric energy utilization efficiency and energy-saving technology needs to be solved urgently. In the context of developing a low-carbon economy, analyzing and evaluating the energy efficiency level of power users is a hot issue that both the government and high-energy-consuming enterprises are concerned about. [0003] The current system and method for evaluating the energy effi...

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Problems solved by technology

[0003] The current system and method for evaluating the energy efficiency of electric power users mainly includes the following methods: 1. Based on the matter-element comprehensive evaluation model to evaluate the power energy efficiency of high-energy-consuming enterprises, the matter-element model is constructed by applying the matter-element extension set theory. The power energy efficiency level of high energy-consuming enterprises is identified through the calculation of weight and correlation degree, but the evaluation index only considers three aspects of technology, economy, and management, and the index is not comprehensive enough, and the weight is calculated as a constant weight

2. The energy-saving energy calculation and energy efficiency comprehensive evaluation method of high-energy-carrying enterprises, based on dividing and encapsulating functional modules, has good portability and can overcome the defects of waste of resources and poor environmental protection in the existing technology, so as to save resources and improve environmental protection advantages, but the data obtained by analysis and calculation only save energy, and the small amount of information cannot provide more reliable technical guidance for energy-saving transformation of enterprises

3. Counter-propagation neural network (CPN) method, a system and evaluation method for energy-saving evaluation of industrial enterprise power supply and distribution networks. The energy-saving evaluation of the power supply and distribution network of industrial enterprises with multiple factors, the evaluation process is fast, and the evaluation results are highly reliable, but there is a lack of a systematic and complete evaluation system

4. The combined weighting method, which comprehensively considers subjective and objective weighting methods, is applied to the evaluation of power energy efficiency of industrial users. Through the establishment of a three-level comprehensive evaluation system, the comprehensive evaluation method is simple, but the patent simply uses subjective weights and objective weights. In an evaluation process, its weight is fixed and will not change due to different evaluated objects, and it cannot dynamically reflect that the implementation of energy-saving schemes will bring different degrees of drastic changes to the evaluated objects

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