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Hydraulic regulation and control method for preventing sediment deposition of diversion type hydropower station
The invention relates to a hydraulic regulation and control method for preventing sediment deposition of a diversion type hydropower station. The method comprises the following steps: selecting a regulation and control object; constructing a virtual simulation model and a physical experiment model which are respectively used for simulating a water flow movement process and a sediment movement process; using a virtual simulation model to simulate flow fields of water inlet areas under different diversion tunnel combinations according to a power generation plan and incoming flow, and selecting the diversion tunnel combination with the lowest flow velocity in front of a water inlet; a physical experiment model is used for simulating sediment movement, sediment deposition speeds at different water levels are measured, and sustainable operation time at different water levels is calculated in combination with the limit value of the volume of the safely deposited sediment; the total power generation amount is calculated according to the power generation flow, the water level and the sustainable operation time, and the scheme with the maximum power generation amount is selected as the hydropower station operation scheme. By optimizing the diversion tunnel combination and the operation water level of the hydropower station, the power generation benefit of the hydropower station is effectively improved on the premise that safe operation of the hydropower station is guaranteed.
本发明涉及一种用于防止引水式水电站泥沙淤积的水力调控方法，包括：选取调控对象；构建虚拟仿真模型和物理实验模型，分别用于模拟水流运动过程和泥沙运动过程；使用虚拟仿真模型，根据发电计划和来流量模拟不同引水隧洞组合下进水口区域的流场，并选取进水口前流速最低的引水隧洞组合；使用物理实验模型模拟泥沙运动，测量不同水位下泥沙淤积速度，并结合可安全淤积泥沙体积的限值，计算不同水位下可持续运行时间；根据发电流量、水位和可持续运行时间计算发电总量，选择发电量最大的方案作为水电站运行方案。本发明通过优化引水隧洞组合和水电站运行水位，在保证水电站安全运行的前提下，有效提高了水电站发电效益。
Hydraulic regulation and control method for preventing sediment deposition of diversion type hydropower station
The invention relates to a hydraulic regulation and control method for preventing sediment deposition of a diversion type hydropower station. The method comprises the following steps: selecting a regulation and control object; constructing a virtual simulation model and a physical experiment model which are respectively used for simulating a water flow movement process and a sediment movement process; using a virtual simulation model to simulate flow fields of water inlet areas under different diversion tunnel combinations according to a power generation plan and incoming flow, and selecting the diversion tunnel combination with the lowest flow velocity in front of a water inlet; a physical experiment model is used for simulating sediment movement, sediment deposition speeds at different water levels are measured, and sustainable operation time at different water levels is calculated in combination with the limit value of the volume of the safely deposited sediment; the total power generation amount is calculated according to the power generation flow, the water level and the sustainable operation time, and the scheme with the maximum power generation amount is selected as the hydropower station operation scheme. By optimizing the diversion tunnel combination and the operation water level of the hydropower station, the power generation benefit of the hydropower station is effectively improved on the premise that safe operation of the hydropower station is guaranteed.
本发明涉及一种用于防止引水式水电站泥沙淤积的水力调控方法，包括：选取调控对象；构建虚拟仿真模型和物理实验模型，分别用于模拟水流运动过程和泥沙运动过程；使用虚拟仿真模型，根据发电计划和来流量模拟不同引水隧洞组合下进水口区域的流场，并选取进水口前流速最低的引水隧洞组合；使用物理实验模型模拟泥沙运动，测量不同水位下泥沙淤积速度，并结合可安全淤积泥沙体积的限值，计算不同水位下可持续运行时间；根据发电流量、水位和可持续运行时间计算发电总量，选择发电量最大的方案作为水电站运行方案。本发明通过优化引水隧洞组合和水电站运行水位，在保证水电站安全运行的前提下，有效提高了水电站发电效益。
Hydraulic regulation and control method for preventing sediment deposition of diversion type hydropower station
一种防止引水式水电站泥沙淤积的水力调控方法
LIAN JIJIAN (author) / LI JINXUAN (author) / XU KUI (author)
2024-05-03
Patent
Electronic Resource
Chinese
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