Implementation of real -time steam temperature control for high efficient induction- based extraction essential oil using hybrid fuzzy-PD plus PID controller

Steam temperature is well known as one significant parameter in process of extraction essential oil that can contribute to increase the output yield and quality of the product. In this study, induction heating system was adopted in steam distillation pot to replace the conventional heating element. Induction heating system was preferred is due to high efficient, clean and save energy. In term of temperature control, this study implemented hybrid fuzzy PD plus PID at steam distillation pot with induction heating system for essential oil extraction system. Initially, the system was modeled to represent the system using ARX structure with PRBS was triggered to the system as an input. The parameter estimation and tuning is derived by simulation for HFPP control scheme. The performance of HFPP with 25 and 49 rules is compared by step response test. From experiment of real time control, demonstrate the proposed HFPP using 49 rules giving a better performance based on settling time, rise time, percent overshoot and RMSE value.