Estimation of the Price Range of Power Grid Technological Transformation Based on Walsh Average. Issue 2 (April 2021)

• Record Type: Journal Article
• Authors: Yang, Fan; Zhu, Xiaohu; Li, Jianqing
• Is Part Of: Journal of physics. Volume 1881:Issue 2(2021)
• Publication Date: 2021-04
• Subjects: Walsh Average -- Unit Cost -- Confidence Interval -- Power Grid Technological Transformation -- Data Processing; Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1881/2/022008
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: With the continuous improvement of the construction of power grid projects, the pressure to transform power grid equipment is increasing. It is particularly important to perform reasonable data processing for the transformation costs of various types and voltage levels of power grid equipment. The data processing method based on Walsh average has an efficiency advantage in dealing with the non-normal parameter distribution. Based on the traditional statistical processing of power grid technical renovation price data, this paper combines the Walsh average comprehensive data processing method to obtain the final technical renovation price data for the overall range of various equipment. First, conduct a preliminary analysis of the sample, use the box plot to eliminate outliers, and then use the Walsh average model to obtain an estimate of the power grid technological transformation price range. In this paper, the real data is processed to verify the feasibility of the comprehensive data processing method and use this method to obtain a more appropriate confidence interval for the unit cost of each type of power grid equipment at each voltage level. The condition of the equipment is of great significance to guide the subsequent technological transformation projects and provide references for them.