一种用于脉冲式电磁阀门的水流量控制方法及系统

By introducing a correction mechanism of temporal boundary sensitivity and smoothing weight coefficient into the fuzzy controller, the problem of control instability of pulse solenoid valve under water pressure fluctuation environment is solved, and continuous, stable and safe control of water flow is achieved.

CN122018575BActive Publication Date: 2026-07-17NINGBO TIANYING ELECTRIC APPLIANCE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO TIANYING ELECTRIC APPLIANCE CO LTD
Filing Date
2026-04-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing pulse-type solenoid valve water flow control methods are unstable when facing complex environments with frequent water pressure fluctuations, resulting in flow oscillations and reduced control accuracy, especially in building water supply systems.

Method used

A fuzzy controller is used in conjunction with a correction mechanism that combines timing boundary sensitivity and smoothing weight coefficients to dynamically identify whether the system is in a high-risk region of the fuzzy set boundary. The pulse duty cycle reference value is adaptively adjusted to generate a smoothed pulse duty cycle value. The continuity and safety of control are ensured by single-step change constraints.

Benefits of technology

It effectively avoids the output jump problem in the boundary region of traditional fuzzy controllers, ensures continuous and stable control of water flow, improves control accuracy and system stability, and prevents water hammer effect and flow shock.

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Abstract

本发明涉及水流量控制技术领域,尤其涉及一种用于脉冲式电磁阀门的水流量控制方法及系统,方法包括:获取脉冲式电磁阀门的上游水压、下游水压、实际流量和目标流量,并对获取的原始数据进行预处理,得到压差和控制需求;将压差和控制需求输入至模糊控制器,通过模糊化处理、模糊规则推理和去模糊化计算,生成脉冲占空比基准值;对脉冲占空比基准值进行修正,得到脉冲占空比平滑值,对脉冲占空比平滑值进行单步变化量约束,得到脉冲占空比实际值,将脉冲占空比实际值输出至脉冲式电磁阀门控制水流量。本发明能有效避免传统模糊控制在边界区域的输出跳变问题,保证水流量的连续稳定控制。
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