The Pump Station Automation Control System is designed to enhance operational efficiency, safety, and reliability through advanced monitoring and control technologies. This system integrates on-site automation with centralized supervision, enabling the pump station to function autonomously while maintaining seamless communication with higher-level control centers.
The project includes an independent on-site automatic control system and a centralized monitoring room, allowing for full automation of the pumping station’s operations. The on-site control system manages all equipment, such as pumps, valves, flow meters, and water level sensors, based on real-time conditions like liquid levels. The central monitoring system provides global operation data and control instructions, ensuring that the pumping station adheres to flow-based control strategies set by the sewage treatment project.
The system architecture follows a hierarchical structure, consisting of three layers: the information layer (monitoring computers), the control layer (PLC and remote I/O stations), and the equipment layer (field devices). The system supports six different operating modes, depending on seasonal weather conditions, including dry season, early rain, continuous rainfall, post-rain, no rain during the rainy season, and maintenance periods.
Key features of the system include high reliability, cost-effectiveness, comprehensive monitoring of all instrumentation and electromechanical equipment, improved data collection, and enhanced safety. It also reduces the workload of operators and improves overall system performance through automated control.
To ensure robust communication, the system uses industrial Ethernet for interconnection between monitoring computers, PLCs, and other components. DeviceNet buses are used for communication between PLCs and field devices, while remote I/O modules handle analog and pulse signals. The system employs dual communication channels—primary via city digital data networks (DDN) and backup via wireless or dial-up connections—to ensure uninterrupted data transmission.
The control system operates in three levels: central control, local control, and basic control. Central control allows for macro-level coordination, while local control takes precedence for direct equipment management. Basic control ensures manual override capabilities for on-site operations.
Software applications include CloudControl configuration software, which enables real-time data monitoring, alarm notifications, historical data retrieval, and report generation. The user interface is intuitive, providing visual displays of pump status, gate operations, and grille conditions. Users can monitor and control operations remotely, enhancing system flexibility and responsiveness.
In conclusion, the Pump Station Automation Control System delivers a comprehensive solution for efficient and safe pumping station operations. It not only improves operational stability and energy efficiency but also significantly reduces labor demands. With its powerful man-machine interface and reliable monitoring functions, this system offers an ideal automation solution for modern wastewater management systems.
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