Measured signal identification and temperature controller design for a HIPEC device

Peritoneal Carcinomatosis (PC) is an abdominal cancer for which cytoreductive surgery followed by hyperthermic intraperitoneal chemotherapy (HIPEC) proved to be a promising treatment. HIPEC requires the intraperitoneal spread of cytostatic solution at high temperatures (41-43°C) accomplished within 60-120 minutes, during surgical interventions. This paper presents the heating system´s identification, by using a graphical fitting method on a temperature measured signal, for a HIPEC device intended to be developed. Also the design of two PID temperature controllers is presented, using the Strejc design method and the Ziegler-Nichols method. The two feedback control structures are compared via simulation, based on their step response signals and their overall performances.