嘉善县姚庄圩区闸泵群水动力联合优化调度模拟研究OA

The river network in Yaozhuang Polder Area of Jiashan County has a low-lying terrain and a complex structure,resulting in problems such as slow water exchange rate and insufficient hydrodyna-mics.A two-dimensional river network hydrodynamic model based on MIKE21 was constructed,and by taking the minimum energy consumption cost of gate-pump operation as the main objective function,as well as taking the flow velocity,gate-pump flow rate,and water passage time as constraints,a joint gate-pump regulation and optimal scheduling model was established.The Grey Wolf optimization algo-rithm was used to solve the model,resulting in a more economical and efficient regulation scheme.The hydrodynamic regulation effect under the different regulation schemes was simulated and analyzed.The results show that,under the optimal scheduling scheme,the total power consumption of each pumping station and sluice gate station reduces by 67.95%,the hydrodynamic improvement effect enhances sig-nificantly,the average flow velocity and the maximum flow velocity of the river channel increase signifi-cantly,the length of the dead water section shortens,and the overall maximum flow velocity of the river network reaches 0.325 m/s.The most prominent point is the South Yiwan river section,with the increase of flow size around 50%-80%.The results of the study provide technical support for the joint regulation and control of gates and pumps in China's plain river network.