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学术报告
Assoc. Prof. Wenjuan Zhang学术报告会
作者:发布时间:2024-04-03

题目:Genetic Programming Hyper-heuristic for Evolving a Maintenance Policy for Wind Farms

时间:2024年4月3日 13:00-14:00

地点:2024白菜网址官网大全 F303会议室

邀请人:潘尔顺 教授(工业工程与管理系)

 

Biography

Dr Wenjuan Zhang is an Associate Professor in the ISMA (Information System Management & Analytics) group at Warwick Business School, Warwick University in the UK. Her current research interests include optimization, forecasting and decision making; key areas of application: infrastructure asset management, reliability, and maintenance optimisation.  Dr Zhang has worked on over 20 research and consultancy projects from a wide range of clients from industry, commerce and the public sector, as well as working collaboratively with the wider academic community. The ESTEEM project with London Underground was awarded the IET Innovation Award by the Institution of Engineering and Technology, in the Asset Management category. 

 

Abstract

Reducing the cost of operating and maintaining wind farms is essential for the economic viability of this renewable energy source. This study applies hyper-heuristics to design a maintenance policy that prescribes the best maintenance action in every possible situation. Genetic programming is used to construct a priority function that determines what maintenance activities to conduct, and the sequence of maintenance activities if there are not enough resources to do all of them simultaneously. The priority function may take into account the health condition of the target turbine and its components, the characteristics of the corresponding maintenance work, the workload of the maintenance crew, the working condition of the whole wind farm, the current inventory level, and stochastic wind conditions. Empirical results using a simulation model of the wind farm demonstrate that the proposed model can construct maintenance dispatching rules that perform well both in training and test scenarios, which shows the practicability of the approach. The results also show the advantage of the proposed maintenance policy over several previous maintenance strategies. Furthermore, the importance of taking the weather condition and inventory conditions is also proved.

 

 

 

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