Analysis and Design Adaptive Control for an Infrared Oven in Hard Disk Drive Manufacturing Process

Abstract

Nowadays, infrared oven heating process is an important process in hard disk drive (HDD) industry. The infrared ovens are used to heat adhesive material for attach parts of hard disk drive. PID controller with feedback signal is used to control heating process of the infrared ovens. Most of the infrared oven control systems have an important problem in temperature control because of physical change of infrared oven. Overshoot of temperature response and increasing of delay time are result from the problem. If the infrared oven control systems cannot control temperature of the process, it will lead to damage of the products. The problem may be caused from improper parameters of PID controller which are used for temperature control in infrared oven process. This paper presents system identification technique with response optimization for determination of system model parameter coefficients. This research analyzed response of the infrared oven process and design PI controller for optimization system responses. Also present an adaptive control technique based on Model Reference Adaptive System (MRAS) which can control every infrared oven in the HDD manufacturing process.

Keywords : Heat Transfer / System Identification / Response Optimization / Model Reference Adaptive System