PULSE WIDTH MODULATION (PWM) FREQUENCY CONVERSION SYSTEM USED IN CARBON FIBER PRODUCTION
Yao Minsheng (Man-made Fiber Research Institute)
Based on the analysis of requiremets for rayon carbon fiber production, alternating current motor frequency conversion system (PCS) was designed and the mechanical properties of the system was analysed. The results showed that(PWM) PCS could meet all of the requirements for rayon carbon fiber production line, since the control system had contravariant PWM , high FC power resolution and maximum twisting moment. The results also showed that the mechanical properties of PWM calculated were well agreed with that determined.