An adaptive PID control system for water conservancy and reservoir environment

The adaptive PID control system achieves physical separation between actual reservoir capacity changes and surface wave disturbances in the water conservancy reservoir environment, solves the problems of frequent gate operation and mechanical impact, improves control stability and actuator lifespan, and adapts to the long-term evolution of the reservoir bed boundary.

CN122018609BActive Publication Date: 2026-07-03ANHUI YANKONG IND AUTOMATION CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI YANKONG IND AUTOMATION CO LTD
Filing Date
2026-04-07
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies cannot effectively distinguish between the slow-changing components representing the increase or decrease in reservoir capacity and the fast-changing disturbance components caused by water surface fluctuations in water level gauge readings during water reservoir operation. This leads to controller misjudgments as regulation deviations, resulting in frequent gate actions and mechanical impacts. Furthermore, these technologies are unable to cope with the long-term evolution of boundary conditions caused by sediment accumulation in the bed.

Method used

An adaptive PID control system is adopted, which collects data through an edge computing gateway and sensors, constructs a fluid space topology model using a topology mapping module, separates surface waves and reservoir capacity changes using a momentum decoupling module, calculates control coefficients using a priori fitting module, and adaptively updates bottom resistance parameters using a closed-loop evolution module, thereby achieving physical separation and adaptive adjustment of the actual reservoir capacity and surface waves.

Benefits of technology

It reduces ineffective oscillations of the gate, improves control stability and actuator lifespan, and can adapt to the long-term evolution of the reservoir bed boundary, preventing control performance degradation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122018609B_ABST
    Figure CN122018609B_ABST
Patent Text Reader

Abstract

This invention relates to the field of water conservancy automation control and edge computing technology, specifically an adaptive PID control system for a water conservancy reservoir environment, including an edge computing gateway, a water level sensor, a flow sensor, and a servo actuator. A topology mapping module acquires the static geometric parameters of the fluid and establishes an initial state matrix for a fluid momentum state observer. A momentum decoupling module inputs upstream water level, upstream inflow, and opening data to update the state matrix, generating transient fluctuation energy characteristics and actual storage residual characteristics. A priori fitting module calculates proportional, integral, and differential coefficients based on these characteristics. A closed-loop evolution module generates control commands and corrects the bottom resistance parameters. This invention achieves physical separation between actual reservoir capacity changes and surface wave disturbances, reduces ineffective gate oscillations, and improves control stability and actuator lifespan under flood peak conditions.
Need to check novelty before this filing date? Find Prior Art