Based Fuzzy Logic Temperature Control for a Coffee Roaster Machine

3rd Annual Applied Science and Engineering Conference

工业技术;自然科学

Fauziyah, M.^1 ; Adhisuwignjo, S.^1 ; Rifai, M.^1 ; Dewatama, D.^1

Electricity Engineering, State Polytechnic of Malang, Indonesia^1

关键词: Controller outputs;    Fuzzy logic control;    Low temperatures;    Machine operators;    Mechanical design;    PLC system;    Roasting process;    Temperature controllers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/434/1/012202/pdf
DOI  :  10.1088/1757-899X/434/1/012202

来源: IOP

【 摘 要 】

The aim of this research is to control the temperature of roasting process to be stable. The temperature controller is needed in process of coffee roasting because of high and low temperature is very influential on the process. This paper presents the development of the coffee roaster machine where the temperature is controlled using fuzzy logic control algorithm. The temperature is sensed using PT100. The fuzzy control algorithm computes the controller output based on error and the rate of error. The fuzzy control algorithm is implemented using MATLAB. A PLC Omron is used and interfaced with PC Desktop, so that a real-time control can be conducted. A HMI is used so that a roaster machine operator can easily operates the machine. A complete PLC system and mechanical design are discussed in this paper. Experiments were conducted to verify the performance of the controller. From the experiment results, the desired temperature can be controlled with relatively small error, 0.52%. It can cause the temperature of the process relatively stable.