Research On The Evaluation Method Of Virtual Maintenance Process Of Turbine-Generator Unit

At present,with the continuous deepening of the reform of China’s electric power enterprises and the deepening of intelligent construction,competition among power generation enterprises is becoming increasingly fierce.The requirement of continuous operation time and maintainability for each equipment of turbine-generator unit is increasing in the power generation enterprise.At the same time,the difficulty of equipment maintenance and disassembly is increasing,but it is relatively backward in the field of equipment maintenance guarantee,training and comprehensive evaluation of turbine-generator unit.Currently,there is a lack of a full range of virtual maintenance system for personnel training of large-scale thermal power generation equipment and a lack of a comprehensive evaluation system that can evaluate the effect of virtual maintenance training and reflect the maintenance level of maintenance personnel.Therefore,in order to make the maintenance personnel better transfer the theoretical knowledge to the actual maintenance,help the maintenance personnel to find out the short board and point out the direction for the operation that needs to be strengthened,so as to improve the maintenance level more efficiently,and then improve the efficiency of the whole power generation enterprise,it is urgent to study the evaluation method effectively applied to the virtual maintenance process of the turbine-generator unit in the current large-scale and complex equipment maintenance field.The demand that needs to be met is of great practical significance for improving the overall maintenance level of power generation enterprises and promoting the intelligent construction process of power generation enterprises.Based on this,this paper studies the virtual maintenance process of turbine-generator unit,and proposes a comprehensive evaluation method based on the improved AHP-entropy weight method.Firstly,the key indexes in the virtual maintenance process of turbine-generator unit are excavated from many aspects,and the multi-dimensional virtual maintenance evaluation system of turbine-generator unit is established according to the principle of evaluation index system construction,and the quantitative methods of each evaluation index are analyzed.Then,the indexes are determined according to the ideas of complementary advantages,comprehensive evaluation and simplified calculation,combined with the improved AHP and entropy weight method.Then,combining with 3D modeling technology,interactive platform,database technology and system integration platform,a set of virtual maintenance comprehensive evaluation system for the training of maintenance personnel is developed,which integrates the proposed evaluation method into the design process of data support and comprehensive evaluation two functional modules,and provides the training and intelligent evaluation for the maintenance of turbine generator equipment for reference.Finally,taking the virtual maintenance process of No.1 bearing disassembly in a power plant as an example,the maintenance process of three operators is evaluated in the developed virtual maintenance comprehensive evaluation system of turbine-generator unit.The evaluation results are consistent with the actual situation and can effectively reflect the real operation level of the operators.