Modeling and control of a new type diaphragm pump using DSP

Abstract

This paper 1 deals with modeling and design of reliable controller for a new type diaphragm pump. Because of parameter uncertainties and nonlinear dynamics of the pump model, a fuzzy-like PID controller is designed. The controller design is based on fuzzy Lyapunov synthesis and stability and the robustness analysis of the designed system are straightforward. The pump control system is driven by a Digital Signal Processor (DSP) allowing high control quality. Several simulation results show the effectiveness of the proposed system.

Diagnostics for Periodically Excited Actuators

“…Diaphragm pumps are one example of an industrially important, periodically cycling actuator. These pumps are critical for many medical, food, and petrochemical processes [13], [14] as they offer volumetric precision, high discharge pressures, and superior isolation of the working fluid. Diaphragm pumps also exhibit significant failure mechanisms.…”