永磁同步电机在细纱机上的节能应用OACSTPCD

In order to reduce the electricity cost of cotton spinning enterprise,the largest demand for electricity in the cotton spinning enterprise ring spindle spinning frame main drive system was modified for energy saving.New permanent magnet synchronous motor was used to replace the original three-phase asynchronous motor,and the original main shaft belt drive was changed to coupling direct drive.At the same time,motor current,temperature and spinning frame energy consumption of the process in production C 20 tex yarn were tested and analyzed.The test results showed that the current of the main shaft motor was reduced by 4 A～8 A compared before the modification.The motor temperature was decreased significantly and the heat loss was reduced about 25%～40%.The electricity consumption per kilogram yarn was reduced about 9%when producing C 20 tex yarn,which effectively achieved the purpose of reducing energy consumption of the spinning frame.