期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
Problems of Environmental Acceptance Tests on Power Transmission and Transformation Projects
1
作者 Zhang Lei Environmental Engineering Assessment Center, Ministry of Environmental Protection Zhang Jianping 《Electricity》 2011年第4期58-61,共4页
Based on the experience of environmental acceptance tests for power transmission projects, the problems found in acceptance tests and the system shortcomings of acceptance test itself are analyzed. Recommendations are... Based on the experience of environmental acceptance tests for power transmission projects, the problems found in acceptance tests and the system shortcomings of acceptance test itself are analyzed. Recommendations are provided to improve the future work. 展开更多
关键词 power transmission project environmental acceptance test environmental assessment
下载PDF
All the 330 kv Yulin-Shenmu power transmission and substation projects completed
2
《Electricity》 2001年第1期49-49,共1页
关键词 length All the 330 kv Yulin-Shenmu power transmission and substation projects completed
下载PDF
Research on the risk-evaluation model of power transmission and transformation projects based on multilevel fuzzy-thought weighting for cloud-model improvement 被引量:1
3
作者 Yanli Xiao Ruixin Gou +1 位作者 Zheng Wang Ye Wan 《Clean Energy》 EI 2022年第1期153-164,共12页
The risk evaluation of power transmission and transformation projects is a complex and comprehensive evaluation process influenced by many factors and involves many indicators.In order to solve the uncertainty and fuz... The risk evaluation of power transmission and transformation projects is a complex and comprehensive evaluation process influenced by many factors and involves many indicators.In order to solve the uncertainty and fuzziness problems in the process of the multilevel fuzzy risk evaluation of power transmission and transformation projects,this paper introduces the cloud theory,which is specialized in the study of uncertainty problems and constructs the multilevel fuzzy comprehensive risk-evaluation model of power transmission and transformation projects based on the improved multilevel fuzzy-thought weighting based on the cloud model.Finally,the risk of the Beijing 220-kV Tangyu power transmission and transformation project is evaluated and the feasibility of the evaluation model is verified.The results of the evaluation and the evaluation layer cloud model are combined with MATLAB simulation to show that the risk level of the project is between large risk and general risk. 展开更多
关键词 power transmission and transformation project risk cloud model multilevel fuzzy comprehensive evaluation smart grid
原文传递
Prediction model for cost data of a power transmission and transformation project based on Pearson correlation coefficient-IPSO-ELM
4
作者 Ju Xin Liu ShangKe +1 位作者 Xiao YanLi Wan Ye 《Clean Energy》 EI 2021年第4期756-764,共9页
In view of the difficulty in predicting the cost data of power transmission and transformation projects at present,a method based on Pearson correlation coefficient-improved particle swarm optimization(IPSO)-extreme l... In view of the difficulty in predicting the cost data of power transmission and transformation projects at present,a method based on Pearson correlation coefficient-improved particle swarm optimization(IPSO)-extreme learning machine(ELM)is proposed.In this paper,the Pearson correlation coefficient is used to screen out the main influencing factors as the input-independent variables of the ELM algorithm and IPSO based on a ladder-structure coding method is used to optimize the number of hidden-layer nodes,input weights and bias values of the ELM.Therefore,the prediction model for the cost data of power transmission and transformation projects based on the Pearson correlation coefficient-IPSO-ELM algorithm is constructed.Through the analysis of calculation examples,it is proved that the prediction accuracy of the proposed method is higher than that of other algorithms,which verifies the effectiveness of the model. 展开更多
关键词 cost data of power transmission and transformation project Pearson correlation coefficient IPSO-ELM algorithm project-cost prediction
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部