Implementação de um sistema centralizado de controlo automático no processo de preparação de cana e extracção na Tongaat Hulett Açucareira de Moçambique, SA - Mafambisse

Abstract

This work aims to implement a centralized automatic control system in the sugarcane preparation and extraction process at Tongaat Hulett Açucareira de Moçambique, SA – Mafambisse. The current automatic control system in the cane preparation and extraction process at the Mafambisse Sugar Plant consists of 5 double-circuit Yokogawa YS170 controllers, 1 Yokogawa UT351 controller and 5 Yokogawa fx112 registers directly linked to the control parameters without any dependency between them. . The proposal is to replace the independent system with an Allen Bradley PLC, centralizing control. The development of the project involved a detailed analysis of the existing system, identifying the critical points and limitations of independent controllers. PLC implementation included the configuration of input and output modules, control logic programming using the RSLogix 5000 platform and the integration of existing sensors and actuators in the process. The main conclusions indicate that the use of the Allen Bradley PLC increased the reliability of the control system, reduced operational costs and facilitated future expansions and upgrades of the system. This work demonstrates an effective approach to process modernization and automation in the sugar industry, providing a robust and scalable technical solution for controlling critical processes.