A state feedback-based electromagnetic valve adaptive adjustment method and platform

Abstract

This invention discloses an adaptive control method and platform for solenoid valves based on state feedback, relating to the field of fluid control technology. The method includes: real-time acquisition of the actual value of the controlled variable, calculation of the error e and the error change rate ec; determination of its characteristic region in the state plane (e.g., long-distance rapid approach region, short-distance precise approximation region, overshoot warning region, runaway recovery region) based on e and ec; and invocation of the corresponding preset control strategy (e.g., Bang-Bang control, variable parameter PID, damped PID, strong intervention control) according to the region to generate a control signal to drive the solenoid valve. The platform includes corresponding functional modules. This invention combines classical control theory with the dynamic characteristics of solenoid valves through a "state partitioning → strategy switching" mechanism, achieving nonlinear adaptive control with fast response, small overshoot, and strong anti-disturbance capability, solving the problem that traditional methods struggle to balance speed, stability, and robustness.

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