Temperature control system of heated draw roll based on improved single-neuron PID

Temperature stability and uniformity of heated godet roll shell directly affect the quality of chemical fiber drawing,so single-neuron PID control algorithm is applied to the temperature control system of heated draw roll and the proportion coefficient of neuron is adjusted sectionally,in order to adjust the temperature adaptively under different set temperatures,speeds and ambient temperatures.Rotary temperature transmitter solves the measurement and transmission of the temperature of the high-speed rotating part based on technology of non-contact power supply and infrared data transmission.Thermostat is designed based on C8051F410 MCU,which can control two rollers at the same time.The results show that the system is safe and reliable and has strong stability and anti-jamming capability,and the control accuracy achieves 0.3 ℃;and the improved single-neuron PID exhibits good control performance,the oveshoot is less than 1.5% and the adjustment time is shorter than 8 minutes.