Research On Evaluation Indexes And Methods Of Guangdong Power Market

At present,China’s power reform continues to deepen,and the pilot construction of the power spot market is progressing steadily.There is an urgent need to accelerate the formation and improvement of the power market information disclosure and evaluation system working mechanism to carry out pre-and post-evaluation of the power market to assist market members,market operations,and Market regulators better understand the market and make decisions.Due to operational characteristics such as real-time power balance and the differences in policies and regulations,information disclosure,market environment,power grid structure,and resource endowment of various countries and regions,different regions and different periods of the power market often require different research models,and specific market specific Period-specific analysis.This paper first summarizes the research and application status of domestic and foreign power market information disclosure and monitoring and evaluation,summarizes and summarizes the work process of the power market information disclosure and evaluation system,especially the principles and processes of constructing evaluation index systems,and introduces the research ideas and research content.Based on the actual situation and information disclosure of the Guangdong power market,this paper establishes a set of evaluation index systems suitable for the current Guangdong power market from the aspects of benefit,equity and development.Benefit indicators are subdivided into three types indicators: market benefit,grid benefit,and environmental benefits according to the difficulty of value measurement.Market equity indicators are set from three aspects: market structure,market behavior,and market performance.In terms of comprehensive analysis of indicators,this paper builds a comprehensive power market evaluation model that considers both qualitative and quantitative indicators,subjective and objective weighting,by combining analytic hierarchy process,correlation coefficient method,entropy weight method and evidence reasoning method.After the qualitative and quantitative indicators are unified and standardized,the confidence evaluation and weight analysis and calculation are performed separately.Based on the confidence vectors and weights of all indicators,the evidence reasoning method is used for fusion.Among them,the weight also takes into account the subjective cognition of the evaluation subject,the correlation and fluctuation characteristics of the objective existence of the index data.Finally,benefit and equity indicators for the period from 2017 to 2019 are calculated and analyzed by an example.According to the analysis,the four indicators of average power generation cost,total market surplus,market surplus rate,and producer surplus are the key indicators,and the market structure has a significant impact on the key indicators.The results show that there is less market power in the Guangdong power market,but the overall performance is good.The example also verifies the applicability of the Guangdong power market evaluation system proposed in this paper.