Parallel Canal Gate Linkage Control for Accurate Multi-Gate Operation
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Solution Overview
Problem
Existing water diversion projects face challenges in accurately controlling multiple gates, especially in systems that integrate water supply and power generation, leading to inefficiencies and potential operational hazards.
Innovation Solution
A gate linkage control method and device for a parallel water supply and power generation system, which involves acquiring current gate opening degree information and water levels, determining a target gate linkage control strategy using a hydrodynamic model and optimized objective function, and controlling gate opening degrees through a PID controller to achieve accurate and efficient multi-gate control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control method is used for gate control, then operation simplicity is maintained, but control accuracy deteriorates when multiple gates are involved
Solution Approach 1:
The patent replaces manual mechanical control with an automated control system that uses sensors to detect water levels and gate positions, processes this information through a control unit, and actuates gates automatically. This substitution of manual operation with an automated control loop resolves the contradiction by achieving both operational simplicity (automation) and control accuracy (precise positioning through feedback control).
Solution Approach 2:
The patent implements feedback control by continuously monitoring gate opening degrees and water levels, comparing these measurements with target values, and adjusting gate positions accordingly. The control unit receives real-time data from sensors and modifies gate actuation commands to maintain desired water levels, thereby achieving accurate multi-gate control while simplifying operator intervention.
2Adaptability or versatility
If multiple gates are involved in a multi-functional water diversion project, then comprehensive water utilization is achieved, but control complexity increases
Solution Approach 1:
The patent implements a universal control architecture that can manage multiple gates with different functions (water diversion, power generation, flood control) through a single integrated control system. The control unit applies consistent control algorithms and feedback mechanisms across all gates, allowing the system to handle diverse functional requirements without proportionally increasing control complexity. This multi-functional approach enables comprehensive water utilization while maintaining manageable system complexity through standardized control procedures.
3Measurement precision
If automated control system is implemented for multi-gate control, then control accuracy is improved, but system complexity increases
Solution Approach 1:
The patent divides the control system into distinct functional modules: sensors for detection, a control unit for processing, and actuators for gate manipulation. Each module performs a specific function, and they are interconnected through standardized interfaces. This segmentation allows the automated control system to achieve high accuracy while managing complexity through modular design, where each component can be independently optimized and maintained.
Data Source
AI summary
A gate linkage control method and device and a parallel water supply and power generation system are provided. The method comprises the following steps of: acquiring current gate opening degree information of the parallel water supply and power generation system and a current water level of a third trunk canal, the current gate opening degree information comprising current first gate opening degree information and current second gate opening degree information; determining a target gate linkage control strategy of the parallel water supply and power generation system according to the current gate opening degree information of the parallel water supply and power generation system and the current water level of the third trunk canal; and controlling a gate opening degree of a target gate according to the target gate linkage control strategy of the parallel water supply and power generation system.