Deep Reinforcement Learning for Multi-Objective Real-Time Pump Operation in Rainwater Pumping Stations

Rainwater pumping stations located near urban centers or agricultural areas help prevent flooding by activating an appropriate number of pumps with varying capacities based on real-time rainwater inflow. However, relying solely on rule-based pump operations that monitor only basin water levels is of...

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Bibliographic Details
Published inWater (Basel) Vol. 16; no. 23; p. 3398
Main Authors Joo, Jin-Gul, Jeong, In-Seon, Kang, Seung-Ho
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.12.2024
Subjects
Algorithms
Artificial intelligence
Climate change
Deep learning
Drainage
Dynamic programming
Energy consumption
Flood control
Floods
Heuristic
Linear programming
Machine learning
Maintenance costs
Optimization
Pumping stations
Rain
Retention
Storm damage
Stormwater management
Technology application
South Korea
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ISSN2073-4441
2073-4441
DOI10.3390/w16233398

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Summary:Rainwater pumping stations located near urban centers or agricultural areas help prevent flooding by activating an appropriate number of pumps with varying capacities based on real-time rainwater inflow. However, relying solely on rule-based pump operations that monitor only basin water levels is often insufficient for effective control. In addition to maintaining a low maximum water level to prevent flooding, pump operation at rainwater stations also requires minimizing the number of pump on/off switches. Reducing pump switch frequency lowers the likelihood of mechanical failure and thus decreases maintenance costs. This paper proposes a real-time pump operation method for rainwater pumping stations using Deep Reinforcement Learning (DRL) to meet these operational requirements simultaneously, based only on currently observable information such as rainfall, inflow, storage volume, basin water level, and outflow. Simulated rainfall data with various return periods and durations were generated using the Huff method to train the model. The Storm Water Management Model (SWMM), configured to simulate the Gasan rainwater pumping station located in Geumcheon-gu, Seoul, South Korea, was used to conduct experiments. The performance of the proposed DRL model was then compared with that of the rule-based pump operation currently used at the station.
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ISSN:2073-4441
2073-4441
DOI:10.3390/w16233398