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| Comprehensive evaluation of service status of cascade pumping station based on cloud model |
| XU Cundong1,2, ZHU Xinglin1*, ZHANG Rui1, Tian Junjiao1, Wang Yan1,3, WANG Rongrong1 |
| 1. School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou, He′nan 450046, China; 2. He′nan Provincial Hydraulic Structure Safety Engineering Research Center, Zhengzhou, He′nan 450046, China; 3. Collaborative Innovation Center of Water Resources Efficiency and Protection Engineering, Zhengzhou, He′nan 450046, China |
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Abstract In order to accurately and objectively quantify the service status of the high-lift cascade pumping station system, the Ningxia Yanhuan fixed-height cascade pumping station system was taken as the research object. The ambiguity factors were quantified through the cloud theoretical model and the indicator state was quantitatively described based on the cloud model digital characteristics was quantitativelg described, and an index system for evaluating the service status of the pumping station. The standard cloud model of the comment layer and the cloud model of the membership level of the element layer were constructed. At the same time, the queuing theory was used to solve the index weights, and the comprehensive evaluation of the service status of the pumping station system was rea-lized. The results show that the comprehensive evaluation clouds of the service status of the pumping station system before and after renovation are Cb(0.626 4, 0.061 4, 0.016 8)and Ca(0.842 1, 0.100 5, 0.012 6). In the ″good(V4)″ state, the service status level after the transformation is in the ″good(V5)″ state, verifying that the evaluation results are in line with the actual situation. It can be seen that this method can provide a useful reference for the evaluation of the service status of the cascade pumping station system or the prediction of similar systems.
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Received: 15 April 2019
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