PID CLOSED-LOOP CONTROL SYSTEM BASED ON S7-300 PLC

A Closed Loop Control of Quadratic Boost Converter Using PID Controller

This paper presents an implementation of open loop and closed loop control of Quadratic boost converter using PID controller.  Quadratic boost converter consists of boost converter and fly back converter driven by a single switch. Quadratic boost converter QBC is designed especially for regulating the DC interface between various micro sources and dc-ac inverter to electricity grid. Quadratic b...

Microprocessor-Based Closed-Loop Control

Microprocessor-Based Closed-Loop Motor Control A dedi~ated microprocessor control system was built from chip level using the Motorola M6800 family. The system has a keyboard and the interfaces for four LED displays, a phototransistor and a digital-to-analog converter. The system was designed to execute a closed loop motor control. The system accepts key input in RPM and drives the motor at the ...

Robust Pid Tuning Using Closed-loop Identification

Identification based PID tuning is studied. The proposed approach consists of the identification of linear or nonlinear process model and model based control design. The identification test can be performed in both open loop and closed-loop. The so-called ASYM method is used to solve the identification problem. The method identifies a low order process model with a quantification of model error...

Motor / Tachometer Closed - Loop Speed Control System

Effect of Disturbance on Closed-Loop Control System

This paper tackles the disturbances in control operation in close-loop and its effect on the system by studding transfer function in presence and absence of disturbances. An example controlling a mechanical system is taken and the unexpected outside element effect consider here as disturbance, the close-loop feedback transfer function of the system. The model of the mechanical system is showing...