Qihang Li
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Qihang Li has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Kaiye Gao
School of Economics and Management, Beijing Forestry University, Beijing, China
1 shared publication - Qin Gao
School of Economics and Management, Beijing Forestry University, Beijing 100083, China
1 shared publication - Ruizhi Ouyang
School of Economics and Management, Beijing Forestry University, Beijing 100083, China
1 shared publication - Xinlu Li
School of Management Science and Engineering, Beijing Information Science & Technology University, Beijing 100101, China
1 shared publication - Yang Wang
School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
1 shared publication
Latest Publications
- Open Access
- 18 April 2025
- Published by MDPI AG in Sustainability
- Vol. 17 (8) , 3690
Optimal Water Level Prediction and Control of Great Lakes Based on Multi-Objective Planning and Fuzzy Control Algorithm
The optimal water level prediction and control of the Great Lakes is critical for balancing ecological, economic, and societal demands. This study proposes a multi-objective planning model integrated with a fuzzy control algorithm to address the conflicting interests of stakeholders and dynamic hydrological complexities. First, a network flow model is established to capture the interconnected flow dynamics among the five Great Lakes, incorporating lake volume equations derived from paraboloid-shaped bed assumptions. Multi-objective optimization aims to maximize hydropower flow while minimizing water level fluctuations, solved via a hybrid Ford–Fulkerson and simulated annealing approach. A fuzzy controller is designed to regulate dam gate openings based on water level deviations and seasonal variations, ensuring stability within ±0.6096 m of target levels. Simulations demonstrate rapid convergence (T = 5 time units) and robustness under environmental disturbances, with sensitivity analysis confirming effectiveness in stable conditions (parameter ≥ 0.2). The results highlight the framework’s capability to harmonize stakeholder needs and ecological sustainability, offering a scalable solution for large-scale hydrological systems.
- 18 April 2025
- Published by MDPI AG in Sustainability
- Vol. 17 (8) , 3690
Open AccessOptimal Water Level Prediction and Control of Great Lakes Based on Multi-Objective Planning and Fuzzy Control Algorithm
The optimal water level prediction and control of the Great Lakes is critical for balancing ecological, economic, and societal demands. This study proposes a multi-objective planning model integrated with a fuzzy control algorithm to address the conflicting interests of stakeholders and dynamic hydrological complexities. First, a network flow model is established to capture the interconnected flow dynamics among the five Great Lakes, incorporating lake volume equations derived from paraboloid-shaped bed assumptions. Multi-objective optimization aims to maximize hydropower flow while minimizing water level fluctuations, solved via a hybrid Ford–Fulkerson and simulated annealing approach. A fuzzy controller is designed to regulate dam gate openings based on water level deviations and seasonal variations, ensuring stability within ±0.6096 m of target levels. Simulations demonstrate rapid convergence (T = 5 time units) and robustness under environmental disturbances, with sensitivity analysis confirming effectiveness in stable conditions (parameter ≥ 0.2). The results highlight the framework’s capability to harmonize stakeholder needs and ecological sustainability, offering a scalable solution for large-scale hydrological systems.