29 خرداد 1403
عليرضا دودمان تيپي

علیرضا دودمان تیپی

مرتبه علمی: استادیار
نشانی: دانشگاه صنعتی کرمانشاه - دانشکده مهندسی برق - گروه مهندسی برق (گرایش های قدرت و کنترل)
تحصیلات: دکترای تخصصی / مهندسی برق کنترل
تلفن: 083-38305001
دانشکده: دانشکده مهندسی برق

مشخصات پژوهش

عنوان
Frequency control of the drop detachment in the automatic GMAW process
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
GMAW processReference generationDrop detachmentProcess controlFrequency control
پژوهشگران علیرضا دودمان تیپی (نفر اول)، سید کمال حسینی ثانی (نفر دوم)، ناصر پریز (نفر سوم)

چکیده

A method was introduced for control of the detachment frequency in automatic GMAW process to achieve more regularity in drop detaching. The deposition area, heat input and voltage to current ratio were regulated as the performance indicators. This method was designed based on a three-layer cascade control strategy. A four-input four-output matrix transfer function was assigned to the system using the experimental data. A decoupling MIMO controller was designed for the internal loop. In the middle control loop, a pattern was introduced to neutralize the angle effects on the drop detachment. In the external control loop, the detachment frequency was estimated by a Short Time Fourier Transform (STFT) block. A controller was designed to track the desired frequency reference. The results were evaluated by implementation on an automatic industrial pipeline GMAW system.