Abstract
At present, there are few studies on the comprehensive evaluation of green power grid development in China, and all aspects of green power grid need to be evaluated. Therefore, this paper studies the green development level of power distribution network. This paper proposes a multi-level fuzzy comprehensive evaluation method, which first needs to classify the influencing factors. Therefore, this paper constructs an indicator system for the evaluation of green development of power distribution network from three dimensions. In order to avoid the influence of subjective factors, this paper adopts the model combining analytic hierarchy process and entropy weight method to give weight to indexes. Finally, five typical regions are selected for empirical analysis. The results show that the model established in this paper can reflect the green development level of power distribution network in each region and put forward relevant improvement suggestions for each region.
Highlights
The evaluation results obtained by the multilevel fuzzy comprehensive evaluation method can be analyzed in detail by combining with the corresponding charts: (1) Overall level
Five typical regions were selected as the evaluation objects in this paper, and the evaluation results showed that the green development level of electric energy in Region 3 distribution network was the highest, the overall evaluation level was excellent, and it was better than other regions in many aspects, and the overall score was high
This paper mainly carries out evaluation and empirical research on the current green development level of electric energy in power distribution network, and draws the following conclusions through analysis: (1) This paper summarizes the basic theory of green power grid, analyzes the current situation of the green development of electric energy in distribution network in China, and summarizes the current research status of the green development and comprehensive evaluation method theory of power grid at home and abroad
Summary
As China’s economic strength continues to grow, all walks of life have higher and higher demands for electricity and power supply. Countries around the world have paid more and more attention to sustainable economic development. According to the annual Development Report of The Power Industry in China 2020 released by the China Electricity Council, the installed capacity of full-caliber power generation across the country reached 2010.06 million kilowatts, an increase of 5.8% over the previous year. The grid-connected solar power generated 204.18 million kilowatts, up 17.1% over the previous year. China’s emissions of soot, sulfur dioxide and nitrogen oxide from electric power were about 180,000 tons, 890,000 tons and 930,000 tons, respectively, down about 12.2%, 9.7% and 3.1% from the previous year [1]
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