Analysis of Flood Limited Water Level Determining Methods of Reservoir

2013 ◽  
Vol 726-731 ◽  
pp. 3359-3363
Author(s):  
Mi Zhou ◽  
Ya Li Wang ◽  
Yan Sheng Feng ◽  
Qing Qing Zhang

t is important to reasonably raise the reservoir flood limited water level in order to increase the utilization of the rainwater resources. The methods to set the flood limited water level include the static control and the dynamic control. And the dynamic control methods include the multiple duration method and the dynamic control method. All those methods were summarized and analyzed in this paper, especially the dynamic control. The advantages of the multiple duration method and the dynamic control method for the flood were indicated respectively. Those two methods were contrastively analyzed from the design principles, the application conditions, the actual operation complexity and the risk control factors. Then the conclusion was obtained, that the dynamic control method will be more advantageous and popular than the multiple duration the in the future.

2013 ◽  
Vol 830 ◽  
pp. 376-383 ◽  
Author(s):  
Wen Jian Tang ◽  
Liang Ren ◽  
Hui Xu ◽  
Bo Hu ◽  
Zhan Feng Ding ◽  
...  

The contradiction between water shortage and social needs has become an important factor restricting economic development. As freshwater, flood could be used as the natural resources to resolve the problem of water shortage, and also has some environmental benefits. Taking Danjiangkou reservoir as example, we adopt dynamic control method of limited water level to discuss the potential socioeconomic benefits of flood utilization.


2018 ◽  
Vol 246 ◽  
pp. 01055
Author(s):  
Xin Wu ◽  
Ping Zhong

This paper briefly introduces the method, content and approval process of the dynamic control of the flood limited level in Wuqiangxi reservoir, and summarizes the benefits since the implementation of dynamic control. The relevant research results of this paper can be used as reference for production technology management personnel.


2016 ◽  
Vol 31 (1) ◽  
pp. 143-158 ◽  
Author(s):  
Qiao-feng Tan ◽  
Xu Wang ◽  
Pan Liu ◽  
Xiao-hui Lei ◽  
Si-yu Cai ◽  
...  

Author(s):  
Xing Xu ◽  
Minglei Li ◽  
Feng Wang ◽  
Ju Xie ◽  
Xiaohan Wu ◽  
...  

A human-like trajectory could give a safe and comfortable feeling for the occupants in an autonomous vehicle especially in corners. The research of this paper focuses on planning a human-like trajectory along a section road on a test track using optimal control method that could reflect natural driving behaviour considering the sense of natural and comfortable for the passengers, which could improve the acceptability of driverless vehicles in the future. A mass point vehicle dynamic model is modelled in the curvilinear coordinate system, then an optimal trajectory is generated by using an optimal control method. The optimal control problem is formulated and then solved by using the Matlab tool GPOPS-II. Trials are carried out on a test track, and the tested data are collected and processed, then the trajectory data in different corners are obtained. Different TLCs calculations are derived and applied to different track sections. After that, the human driver’s trajectories and the optimal line are compared to see the correlation using TLC methods. The results show that the optimal trajectory shows a similar trend with human’s trajectories to some extent when driving through a corner although it is not so perfectly aligned with the tested trajectories, which could conform with people’s driving intuition and improve the occupants’ comfort when driving in a corner. This could improve the acceptability of AVs in the automotive market in the future. The driver tends to move to the outside of the lane gradually after passing the apex when driving in corners on the road with hard-lines on both sides.


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