Design of Coal Handling System for Filling Bungker using PID Method in Coal PLTU

Abstract

The process of filling bunkers at PT PJB UBJ O&M PLTU 1 east java Pacitan is very dependent on coal handling system. In the existing system is still dependent on human resources as an operator, of course, very influential on human performance. The level of the bunker is a major problem for the continuity of the combustion process in the boiler. To support productivity, the authors make an innovative coal handling system design and monitor the level conditions in the bunker by using the PID (Proportional Integral Derivative) controller method to determine the level in the bunker. After that the condition is sent to the micro controller which then commands the conveyor and coal plough. The conveyor itself is driven by a stepper motor and the coal flow is driven using a servo motor. For combustion protection, there is a temperature sensor and a water pump in the bunker to extinguish. The level in the transmitted bunker serves as input to the PID and then the filling process is carried out by the conveyor to meet the demand for the bunker level. The accuracy rate in this system is 97.8% of the input data level of each bunker through an ultrasonic sensor. To make it more optimal all the information in the visual studio display.